java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-circular_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 17:00:27,050 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 17:00:27,051 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 17:00:27,064 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 17:00:27,064 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 17:00:27,065 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 17:00:27,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 17:00:27,067 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 17:00:27,068 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 17:00:27,068 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 17:00:27,069 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 17:00:27,069 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 17:00:27,070 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 17:00:27,070 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 17:00:27,072 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 17:00:27,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 17:00:27,076 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 17:00:27,078 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 17:00:27,079 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 17:00:27,080 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 17:00:27,082 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 17:00:27,082 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 17:00:27,082 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 17:00:27,083 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 17:00:27,084 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 17:00:27,084 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 17:00:27,085 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 17:00:27,085 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 17:00:27,085 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 17:00:27,086 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 17:00:27,086 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 17:00:27,086 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-02-04 17:00:27,096 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 17:00:27,096 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 17:00:27,097 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 17:00:27,097 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 17:00:27,097 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 17:00:27,098 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 17:00:27,098 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 17:00:27,098 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 17:00:27,098 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 17:00:27,098 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 17:00:27,098 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 17:00:27,099 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 17:00:27,099 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 17:00:27,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 17:00:27,099 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 17:00:27,099 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 17:00:27,099 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 17:00:27,100 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 17:00:27,100 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 17:00:27,100 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 17:00:27,100 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 17:00:27,100 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-04 17:00:27,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 17:00:27,138 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 17:00:27,141 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 17:00:27,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 17:00:27,143 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 17:00:27,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular_true-unreach-call_true-valid-memsafety.i [2018-02-04 17:00:27,288 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 17:00:27,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 17:00:27,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 17:00:27,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 17:00:27,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 17:00:27,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6deec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27, skipping insertion in model container [2018-02-04 17:00:27,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,306 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 17:00:27,334 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 17:00:27,426 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 17:00:27,439 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 17:00:27,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27 WrapperNode [2018-02-04 17:00:27,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 17:00:27,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 17:00:27,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 17:00:27,446 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 17:00:27,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... [2018-02-04 17:00:27,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 17:00:27,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 17:00:27,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 17:00:27,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 17:00:27,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 17:00:27,509 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 17:00:27,509 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 17:00:27,509 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 17:00:27,509 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 17:00:27,509 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 17:00:27,509 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 17:00:27,510 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 17:00:27,510 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 17:00:27,510 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 17:00:27,510 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 17:00:27,510 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 17:00:27,510 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 17:00:27,510 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 17:00:27,511 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 17:00:27,511 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 17:00:27,511 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 17:00:27,511 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 17:00:27,809 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 17:00:27,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 05:00:27 BoogieIcfgContainer [2018-02-04 17:00:27,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 17:00:27,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 17:00:27,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 17:00:27,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 17:00:27,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 05:00:27" (1/3) ... [2018-02-04 17:00:27,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421cd822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 05:00:27, skipping insertion in model container [2018-02-04 17:00:27,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:00:27" (2/3) ... [2018-02-04 17:00:27,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421cd822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 05:00:27, skipping insertion in model container [2018-02-04 17:00:27,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 05:00:27" (3/3) ... [2018-02-04 17:00:27,816 INFO L107 eAbstractionObserver]: Analyzing ICFG sll-circular_true-unreach-call_true-valid-memsafety.i [2018-02-04 17:00:27,821 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 17:00:27,827 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2018-02-04 17:00:27,850 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 17:00:27,850 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 17:00:27,851 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-04 17:00:27,851 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 17:00:27,851 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 17:00:27,851 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 17:00:27,851 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 17:00:27,851 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 17:00:27,852 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 17:00:27,863 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-02-04 17:00:27,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 17:00:27,870 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:27,871 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:27,871 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:27,874 INFO L82 PathProgramCache]: Analyzing trace with hash -414871971, now seen corresponding path program 1 times [2018-02-04 17:00:27,908 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:27,942 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:27,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,001 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:28,001 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 17:00:28,002 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,002 INFO L182 omatonBuilderFactory]: Interpolants [106#true, 107#false, 108#(= 1 (select |#valid| |main_#t~malloc0.base|)), 109#(= 1 (select |#valid| main_~head~0.base))] [2018-02-04 17:00:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,003 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 17:00:28,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 17:00:28,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 17:00:28,013 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2018-02-04 17:00:28,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:28,228 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2018-02-04 17:00:28,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 17:00:28,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 17:00:28,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:28,236 INFO L225 Difference]: With dead ends: 114 [2018-02-04 17:00:28,236 INFO L226 Difference]: Without dead ends: 111 [2018-02-04 17:00:28,237 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:00:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-02-04 17:00:28,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 96. [2018-02-04 17:00:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-02-04 17:00:28,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2018-02-04 17:00:28,260 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 8 [2018-02-04 17:00:28,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:28,261 INFO L432 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2018-02-04 17:00:28,261 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 17:00:28,261 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2018-02-04 17:00:28,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 17:00:28,261 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:28,261 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:28,261 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:28,261 INFO L82 PathProgramCache]: Analyzing trace with hash -414871970, now seen corresponding path program 1 times [2018-02-04 17:00:28,262 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:28,270 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,307 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:28,308 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 17:00:28,308 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,311 INFO L182 omatonBuilderFactory]: Interpolants [322#true, 323#false, 324#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 325#(and (= (select |#length| main_~head~0.base) 8) (= main_~head~0.offset 0))] [2018-02-04 17:00:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,312 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 17:00:28,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 17:00:28,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 17:00:28,312 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand 4 states. [2018-02-04 17:00:28,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:28,402 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2018-02-04 17:00:28,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 17:00:28,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 17:00:28,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:28,404 INFO L225 Difference]: With dead ends: 103 [2018-02-04 17:00:28,404 INFO L226 Difference]: Without dead ends: 103 [2018-02-04 17:00:28,405 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:00:28,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-02-04 17:00:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 92. [2018-02-04 17:00:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-02-04 17:00:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2018-02-04 17:00:28,411 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 8 [2018-02-04 17:00:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:28,412 INFO L432 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2018-02-04 17:00:28,412 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 17:00:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2018-02-04 17:00:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 17:00:28,412 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:28,412 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:28,413 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:28,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1612643290, now seen corresponding path program 1 times [2018-02-04 17:00:28,414 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:28,435 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,462 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:28,462 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 17:00:28,462 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,463 INFO L182 omatonBuilderFactory]: Interpolants [523#true, 524#false, 525#(= 1 (select |#valid| main_~head~0.base)), 526#(= 1 (select |#valid| main_~x~0.base))] [2018-02-04 17:00:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,463 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 17:00:28,463 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 17:00:28,463 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 17:00:28,464 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand 4 states. [2018-02-04 17:00:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:28,556 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2018-02-04 17:00:28,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 17:00:28,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 17:00:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:28,557 INFO L225 Difference]: With dead ends: 88 [2018-02-04 17:00:28,557 INFO L226 Difference]: Without dead ends: 88 [2018-02-04 17:00:28,558 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:00:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-02-04 17:00:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2018-02-04 17:00:28,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-02-04 17:00:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2018-02-04 17:00:28,563 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 14 [2018-02-04 17:00:28,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:28,564 INFO L432 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2018-02-04 17:00:28,564 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 17:00:28,564 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2018-02-04 17:00:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 17:00:28,564 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:28,564 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:28,565 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:28,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1612643291, now seen corresponding path program 1 times [2018-02-04 17:00:28,567 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:28,580 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,630 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:28,630 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 17:00:28,630 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,631 INFO L182 omatonBuilderFactory]: Interpolants [698#true, 699#false, 700#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 701#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base))), 702#(and (= (select |#length| main_~x~0.base) 8) (= main_~x~0.offset 0))] [2018-02-04 17:00:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,631 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 17:00:28,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 17:00:28,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:00:28,632 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand 5 states. [2018-02-04 17:00:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:28,725 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2018-02-04 17:00:28,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 17:00:28,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 17:00:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:28,726 INFO L225 Difference]: With dead ends: 101 [2018-02-04 17:00:28,726 INFO L226 Difference]: Without dead ends: 101 [2018-02-04 17:00:28,727 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 17:00:28,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-02-04 17:00:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 88. [2018-02-04 17:00:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-02-04 17:00:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2018-02-04 17:00:28,730 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 14 [2018-02-04 17:00:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:28,730 INFO L432 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2018-02-04 17:00:28,730 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 17:00:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-02-04 17:00:28,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 17:00:28,730 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:28,730 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:28,730 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:28,731 INFO L82 PathProgramCache]: Analyzing trace with hash -22797273, now seen corresponding path program 1 times [2018-02-04 17:00:28,731 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:28,741 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,775 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:28,775 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 17:00:28,775 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,776 INFO L182 omatonBuilderFactory]: Interpolants [896#true, 897#false, 898#(= 1 (select |#valid| |main_#t~malloc4.base|)), 899#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 900#(= 1 (select |#valid| |main_#t~mem6.base|)), 901#(= 1 (select |#valid| main_~x~0.base))] [2018-02-04 17:00:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:28,776 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 17:00:28,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 17:00:28,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 17:00:28,776 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 6 states. [2018-02-04 17:00:28,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:28,948 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2018-02-04 17:00:28,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 17:00:28,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-02-04 17:00:28,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:28,949 INFO L225 Difference]: With dead ends: 132 [2018-02-04 17:00:28,949 INFO L226 Difference]: Without dead ends: 132 [2018-02-04 17:00:28,950 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-02-04 17:00:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-02-04 17:00:28,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2018-02-04 17:00:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-02-04 17:00:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2018-02-04 17:00:28,953 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 18 [2018-02-04 17:00:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:28,953 INFO L432 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2018-02-04 17:00:28,953 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 17:00:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2018-02-04 17:00:28,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 17:00:28,954 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:28,954 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:28,954 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:28,954 INFO L82 PathProgramCache]: Analyzing trace with hash -22797272, now seen corresponding path program 1 times [2018-02-04 17:00:28,954 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:28,977 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,051 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:29,051 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 17:00:29,051 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,052 INFO L182 omatonBuilderFactory]: Interpolants [1128#true, 1129#false, 1130#(and (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 1131#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 1132#(and (= 0 |main_#t~mem6.offset|) (= 8 (select |#length| |main_#t~mem6.base|))), 1133#(and (= (select |#length| main_~x~0.base) 8) (= main_~x~0.offset 0))] [2018-02-04 17:00:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,052 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 17:00:29,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 17:00:29,052 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 17:00:29,053 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand 6 states. [2018-02-04 17:00:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:29,256 INFO L93 Difference]: Finished difference Result 131 states and 140 transitions. [2018-02-04 17:00:29,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 17:00:29,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-02-04 17:00:29,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:29,257 INFO L225 Difference]: With dead ends: 131 [2018-02-04 17:00:29,257 INFO L226 Difference]: Without dead ends: 131 [2018-02-04 17:00:29,257 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-02-04 17:00:29,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-02-04 17:00:29,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 75. [2018-02-04 17:00:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-02-04 17:00:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2018-02-04 17:00:29,262 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 18 [2018-02-04 17:00:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:29,262 INFO L432 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2018-02-04 17:00:29,262 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 17:00:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2018-02-04 17:00:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 17:00:29,262 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:29,262 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:29,262 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:29,263 INFO L82 PathProgramCache]: Analyzing trace with hash -152886338, now seen corresponding path program 1 times [2018-02-04 17:00:29,263 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:29,273 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,393 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:29,393 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 17:00:29,393 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,393 INFO L182 omatonBuilderFactory]: Interpolants [1351#true, 1352#false, 1353#(= 0 |main_#t~malloc0.offset|), 1354#(= main_~head~0.offset 0), 1355#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 1356#(and (= main_~head~0.base main_~x~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 1357#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 1358#(= 1 (select |#valid| |main_#t~mem11.base|)), 1359#(= 1 (select |#valid| main_~x~0.base))] [2018-02-04 17:00:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,394 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 17:00:29,394 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 17:00:29,394 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-02-04 17:00:29,394 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 9 states. [2018-02-04 17:00:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:29,571 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2018-02-04 17:00:29,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 17:00:29,572 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-02-04 17:00:29,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:29,572 INFO L225 Difference]: With dead ends: 127 [2018-02-04 17:00:29,572 INFO L226 Difference]: Without dead ends: 127 [2018-02-04 17:00:29,573 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-02-04 17:00:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-02-04 17:00:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 86. [2018-02-04 17:00:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-02-04 17:00:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2018-02-04 17:00:29,576 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 21 [2018-02-04 17:00:29,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:29,576 INFO L432 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2018-02-04 17:00:29,576 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 17:00:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2018-02-04 17:00:29,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 17:00:29,577 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:29,577 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:29,577 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:29,578 INFO L82 PathProgramCache]: Analyzing trace with hash -152886337, now seen corresponding path program 1 times [2018-02-04 17:00:29,578 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:29,586 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,748 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:29,748 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 17:00:29,748 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,749 INFO L182 omatonBuilderFactory]: Interpolants [1589#true, 1590#false, 1591#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 1592#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 1593#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 1594#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 1595#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 1596#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| |main_#t~mem11.base|))), 1597#(and (= (select |#length| main_~x~0.base) 8) (= 0 main_~x~0.offset))] [2018-02-04 17:00:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:29,749 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 17:00:29,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 17:00:29,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-04 17:00:29,750 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 9 states. [2018-02-04 17:00:29,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:29,965 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2018-02-04 17:00:29,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 17:00:29,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-02-04 17:00:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:29,966 INFO L225 Difference]: With dead ends: 158 [2018-02-04 17:00:29,966 INFO L226 Difference]: Without dead ends: 158 [2018-02-04 17:00:29,966 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:00:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-02-04 17:00:29,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 99. [2018-02-04 17:00:29,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-02-04 17:00:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2018-02-04 17:00:29,969 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 21 [2018-02-04 17:00:29,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:29,969 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2018-02-04 17:00:29,969 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 17:00:29,969 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2018-02-04 17:00:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 17:00:29,969 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:29,969 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:29,970 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:29,970 INFO L82 PathProgramCache]: Analyzing trace with hash -986431451, now seen corresponding path program 1 times [2018-02-04 17:00:29,970 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:29,976 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,087 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:30,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 17:00:30,087 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,088 INFO L182 omatonBuilderFactory]: Interpolants [1872#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 1873#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 1874#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 1875#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 1876#(= 1 (select |#valid| |main_#t~mem13.base|)), 1867#true, 1868#false, 1869#(= 0 |main_#t~malloc0.offset|), 1870#(= main_~head~0.offset 0), 1871#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0))] [2018-02-04 17:00:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,088 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 17:00:30,088 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 17:00:30,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-02-04 17:00:30,089 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 10 states. [2018-02-04 17:00:30,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:30,388 INFO L93 Difference]: Finished difference Result 145 states and 156 transitions. [2018-02-04 17:00:30,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 17:00:30,389 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-02-04 17:00:30,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:30,390 INFO L225 Difference]: With dead ends: 145 [2018-02-04 17:00:30,390 INFO L226 Difference]: Without dead ends: 145 [2018-02-04 17:00:30,391 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:00:30,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-02-04 17:00:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 99. [2018-02-04 17:00:30,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-02-04 17:00:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2018-02-04 17:00:30,395 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 25 [2018-02-04 17:00:30,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:30,395 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2018-02-04 17:00:30,395 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 17:00:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2018-02-04 17:00:30,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 17:00:30,396 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:30,396 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:30,396 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:30,397 INFO L82 PathProgramCache]: Analyzing trace with hash -986431450, now seen corresponding path program 1 times [2018-02-04 17:00:30,397 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:30,405 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:30,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,551 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:30,551 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 17:00:30,551 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,552 INFO L182 omatonBuilderFactory]: Interpolants [2144#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 2145#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 2146#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 2147#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0)), 2139#true, 2140#false, 2141#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 2142#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 2143#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,552 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 17:00:30,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 17:00:30,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-02-04 17:00:30,553 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 9 states. [2018-02-04 17:00:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:30,901 INFO L93 Difference]: Finished difference Result 154 states and 165 transitions. [2018-02-04 17:00:30,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 17:00:30,902 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-02-04 17:00:30,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:30,903 INFO L225 Difference]: With dead ends: 154 [2018-02-04 17:00:30,903 INFO L226 Difference]: Without dead ends: 154 [2018-02-04 17:00:30,903 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2018-02-04 17:00:30,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-02-04 17:00:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 99. [2018-02-04 17:00:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-02-04 17:00:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2018-02-04 17:00:30,907 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 25 [2018-02-04 17:00:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:30,907 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2018-02-04 17:00:30,907 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 17:00:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2018-02-04 17:00:30,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 17:00:30,908 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:30,908 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:30,908 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:30,908 INFO L82 PathProgramCache]: Analyzing trace with hash -515063564, now seen corresponding path program 1 times [2018-02-04 17:00:30,909 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:30,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:30,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,942 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:30,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 17:00:30,942 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:30,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,943 INFO L182 omatonBuilderFactory]: Interpolants [2416#false, 2417#(= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)), 2418#(= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)), 2419#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 2420#(= 1 (select |#valid| |main_#t~mem20.base|)), 2421#(= 1 (select |#valid| main_~x~0.base)), 2415#true] [2018-02-04 17:00:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:30,943 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 17:00:30,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 17:00:30,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 17:00:30,943 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand 7 states. [2018-02-04 17:00:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:31,134 INFO L93 Difference]: Finished difference Result 135 states and 149 transitions. [2018-02-04 17:00:31,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 17:00:31,134 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-02-04 17:00:31,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:31,135 INFO L225 Difference]: With dead ends: 135 [2018-02-04 17:00:31,135 INFO L226 Difference]: Without dead ends: 135 [2018-02-04 17:00:31,136 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-02-04 17:00:31,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-02-04 17:00:31,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 101. [2018-02-04 17:00:31,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-02-04 17:00:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2018-02-04 17:00:31,140 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 26 [2018-02-04 17:00:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:31,141 INFO L432 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2018-02-04 17:00:31,141 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 17:00:31,141 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2018-02-04 17:00:31,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 17:00:31,142 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:31,142 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:31,142 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:31,142 INFO L82 PathProgramCache]: Analyzing trace with hash -515063563, now seen corresponding path program 1 times [2018-02-04 17:00:31,143 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:31,151 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:31,377 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:31,377 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 17:00:31,378 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:31,378 INFO L182 omatonBuilderFactory]: Interpolants [2672#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 2673#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 2674#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 2675#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem11.offset|) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 2676#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 main_~x~0.offset)), 2677#(and (= 8 (select |#length| |main_#t~mem20.base|)) (<= |main_#t~mem20.offset| 0) (<= 0 |main_#t~mem20.offset|)), 2678#(and (= (select |#length| main_~x~0.base) 8) (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)), 2668#true, 2669#false, 2670#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 2671#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0))] [2018-02-04 17:00:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:31,378 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 17:00:31,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 17:00:31,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-02-04 17:00:31,379 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 11 states. [2018-02-04 17:00:31,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:31,674 INFO L93 Difference]: Finished difference Result 158 states and 170 transitions. [2018-02-04 17:00:31,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 17:00:31,674 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-02-04 17:00:31,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:31,675 INFO L225 Difference]: With dead ends: 158 [2018-02-04 17:00:31,675 INFO L226 Difference]: Without dead ends: 158 [2018-02-04 17:00:31,676 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-02-04 17:00:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-02-04 17:00:31,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2018-02-04 17:00:31,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-02-04 17:00:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 151 transitions. [2018-02-04 17:00:31,678 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 151 transitions. Word has length 26 [2018-02-04 17:00:31,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:31,679 INFO L432 AbstractCegarLoop]: Abstraction has 126 states and 151 transitions. [2018-02-04 17:00:31,679 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 17:00:31,679 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 151 transitions. [2018-02-04 17:00:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-04 17:00:31,679 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:31,680 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:31,680 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:31,680 INFO L82 PathProgramCache]: Analyzing trace with hash -90305214, now seen corresponding path program 1 times [2018-02-04 17:00:31,681 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:31,688 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:31,886 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:31,886 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-02-04 17:00:31,886 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:31,887 INFO L182 omatonBuilderFactory]: Interpolants [2981#true, 2982#false, 2983#(= |#valid| |old(#valid)|), 2984#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (= 0 |main_#t~malloc0.offset|)), 2985#(and (= (store |#valid| main_~head~0.base 0) |old(#valid)|) (= main_~head~0.offset 0)), 2986#(and (= |old(#valid)| (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 2987#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= (store |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0) |old(#valid)|) (= main_~head~0.base main_~x~0.base) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 2988#(and (= |old(#valid)| (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 2989#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~mem11.offset|) (= |old(#valid)| (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0))), 2990#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |old(#valid)| (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 0 main_~x~0.offset)), 2991#(and (= |old(#valid)| (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 2992#(and (not (= 0 |main_#t~mem20.base|)) (= (store |#valid| |main_#t~mem20.base| 0) |old(#valid)|)), 2993#(and (not (= 0 main_~x~0.base)) (= (store |#valid| main_~x~0.base 0) |old(#valid)|))] [2018-02-04 17:00:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:31,887 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:00:31,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:00:31,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:00:31,888 INFO L87 Difference]: Start difference. First operand 126 states and 151 transitions. Second operand 13 states. [2018-02-04 17:00:32,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:32,348 INFO L93 Difference]: Finished difference Result 144 states and 156 transitions. [2018-02-04 17:00:32,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 17:00:32,348 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2018-02-04 17:00:32,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:32,349 INFO L225 Difference]: With dead ends: 144 [2018-02-04 17:00:32,349 INFO L226 Difference]: Without dead ends: 141 [2018-02-04 17:00:32,350 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:00:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-02-04 17:00:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 125. [2018-02-04 17:00:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-04 17:00:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 149 transitions. [2018-02-04 17:00:32,353 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 149 transitions. Word has length 30 [2018-02-04 17:00:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:32,353 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 149 transitions. [2018-02-04 17:00:32,353 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:00:32,353 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 149 transitions. [2018-02-04 17:00:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-04 17:00:32,354 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:32,354 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:32,354 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:32,354 INFO L82 PathProgramCache]: Analyzing trace with hash -709364135, now seen corresponding path program 1 times [2018-02-04 17:00:32,355 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:32,361 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:32,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:32,474 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:32,474 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 17:00:32,474 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:32,475 INFO L182 omatonBuilderFactory]: Interpolants [3296#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 3297#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 3298#(= 1 (select |#valid| |main_#t~mem15.base|)), 3289#true, 3290#false, 3291#(= 0 |main_#t~malloc0.offset|), 3292#(= main_~head~0.offset 0), 3293#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 3294#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 3295#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:32,475 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 17:00:32,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 17:00:32,475 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-02-04 17:00:32,475 INFO L87 Difference]: Start difference. First operand 125 states and 149 transitions. Second operand 10 states. [2018-02-04 17:00:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:32,712 INFO L93 Difference]: Finished difference Result 144 states and 156 transitions. [2018-02-04 17:00:32,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 17:00:32,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-02-04 17:00:32,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:32,713 INFO L225 Difference]: With dead ends: 144 [2018-02-04 17:00:32,713 INFO L226 Difference]: Without dead ends: 144 [2018-02-04 17:00:32,713 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:00:32,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-02-04 17:00:32,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 125. [2018-02-04 17:00:32,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-04 17:00:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2018-02-04 17:00:32,715 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 30 [2018-02-04 17:00:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:32,716 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2018-02-04 17:00:32,716 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 17:00:32,716 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2018-02-04 17:00:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-04 17:00:32,717 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:32,717 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:32,717 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:32,717 INFO L82 PathProgramCache]: Analyzing trace with hash -709364134, now seen corresponding path program 1 times [2018-02-04 17:00:32,718 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:32,725 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:32,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:32,863 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:32,863 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 17:00:32,863 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:32,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:32,863 INFO L182 omatonBuilderFactory]: Interpolants [3584#true, 3585#false, 3586#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 3587#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 3588#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 3589#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 3590#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 3591#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 3592#(and (= (select |#length| |main_#t~mem15.base|) 8) (= |main_#t~mem15.offset| 0))] [2018-02-04 17:00:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:32,864 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 17:00:32,864 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 17:00:32,864 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-02-04 17:00:32,864 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand 9 states. [2018-02-04 17:00:33,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:33,074 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2018-02-04 17:00:33,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 17:00:33,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-02-04 17:00:33,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:33,075 INFO L225 Difference]: With dead ends: 148 [2018-02-04 17:00:33,075 INFO L226 Difference]: Without dead ends: 148 [2018-02-04 17:00:33,075 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2018-02-04 17:00:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-02-04 17:00:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 125. [2018-02-04 17:00:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-04 17:00:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2018-02-04 17:00:33,078 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 30 [2018-02-04 17:00:33,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:33,078 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2018-02-04 17:00:33,078 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 17:00:33,078 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2018-02-04 17:00:33,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-04 17:00:33,079 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:33,079 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:33,079 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:33,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1139830908, now seen corresponding path program 1 times [2018-02-04 17:00:33,079 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:33,084 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,095 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:33,095 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 17:00:33,095 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,096 INFO L182 omatonBuilderFactory]: Interpolants [3880#true, 3881#false, 3882#(= main_~state~0 1)] [2018-02-04 17:00:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,096 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 17:00:33,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 17:00:33,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:00:33,096 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand 3 states. [2018-02-04 17:00:33,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:33,107 INFO L93 Difference]: Finished difference Result 191 states and 218 transitions. [2018-02-04 17:00:33,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 17:00:33,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-02-04 17:00:33,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:33,109 INFO L225 Difference]: With dead ends: 191 [2018-02-04 17:00:33,109 INFO L226 Difference]: Without dead ends: 191 [2018-02-04 17:00:33,109 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:00:33,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-02-04 17:00:33,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 140. [2018-02-04 17:00:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-02-04 17:00:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2018-02-04 17:00:33,112 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 30 [2018-02-04 17:00:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:33,112 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2018-02-04 17:00:33,112 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 17:00:33,112 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2018-02-04 17:00:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-02-04 17:00:33,112 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:33,113 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:33,113 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:33,113 INFO L82 PathProgramCache]: Analyzing trace with hash -836244840, now seen corresponding path program 1 times [2018-02-04 17:00:33,113 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:33,118 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,285 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:33,285 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-04 17:00:33,285 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,285 INFO L182 omatonBuilderFactory]: Interpolants [4224#(and (= 0 |main_#t~mem20.offset|) (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)))), 4225#(= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))), 4226#(= 0 |main_#t~mem21|), 4214#true, 4215#false, 4216#(= 0 |main_#t~malloc0.offset|), 4217#(= main_~head~0.offset 0), 4218#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 4219#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.offset 0) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 4220#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~mem11.offset|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 4221#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 4222#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) |main_#t~mem12|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 4223#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))] [2018-02-04 17:00:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,285 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:00:33,286 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:00:33,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:00:33,286 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 13 states. [2018-02-04 17:00:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:33,513 INFO L93 Difference]: Finished difference Result 158 states and 171 transitions. [2018-02-04 17:00:33,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 17:00:33,513 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2018-02-04 17:00:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:33,514 INFO L225 Difference]: With dead ends: 158 [2018-02-04 17:00:33,514 INFO L226 Difference]: Without dead ends: 153 [2018-02-04 17:00:33,514 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2018-02-04 17:00:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-02-04 17:00:33,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 140. [2018-02-04 17:00:33,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-02-04 17:00:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2018-02-04 17:00:33,516 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 32 [2018-02-04 17:00:33,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:33,516 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2018-02-04 17:00:33,516 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:00:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2018-02-04 17:00:33,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-02-04 17:00:33,516 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:33,516 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:33,517 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:33,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1537011505, now seen corresponding path program 1 times [2018-02-04 17:00:33,517 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:33,524 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,669 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:33,669 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-02-04 17:00:33,669 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,669 INFO L182 omatonBuilderFactory]: Interpolants [4545#true, 4546#false, 4547#(= 0 |main_#t~malloc0.offset|), 4548#(= main_~head~0.offset 0), 4549#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 4550#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 4551#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 4552#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 4553#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 4554#(= 1 (select |#valid| |main_#t~mem19.base|)), 4555#(= 1 (select |#valid| main_~x~0.base))] [2018-02-04 17:00:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:33,670 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 17:00:33,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 17:00:33,670 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-02-04 17:00:33,670 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand 11 states. [2018-02-04 17:00:34,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:34,027 INFO L93 Difference]: Finished difference Result 156 states and 169 transitions. [2018-02-04 17:00:34,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 17:00:34,027 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2018-02-04 17:00:34,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:34,028 INFO L225 Difference]: With dead ends: 156 [2018-02-04 17:00:34,028 INFO L226 Difference]: Without dead ends: 156 [2018-02-04 17:00:34,028 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2018-02-04 17:00:34,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-02-04 17:00:34,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2018-02-04 17:00:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-02-04 17:00:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2018-02-04 17:00:34,030 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 33 [2018-02-04 17:00:34,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:34,030 INFO L432 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2018-02-04 17:00:34,030 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 17:00:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2018-02-04 17:00:34,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-02-04 17:00:34,030 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:34,030 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:34,030 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:34,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1537011506, now seen corresponding path program 1 times [2018-02-04 17:00:34,031 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:34,038 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:34,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:34,206 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:34,207 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-02-04 17:00:34,207 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:34,207 INFO L182 omatonBuilderFactory]: Interpolants [4880#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 4881#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 4882#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 4883#(and (= 8 (select |#length| |main_#t~mem19.base|)) (= 0 |main_#t~mem19.offset|)), 4884#(and (= (select |#length| main_~x~0.base) 8) (= main_~x~0.offset 0)), 4875#true, 4876#false, 4877#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 4878#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 4879#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:34,207 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 17:00:34,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 17:00:34,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-02-04 17:00:34,208 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 10 states. [2018-02-04 17:00:34,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:34,489 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2018-02-04 17:00:34,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 17:00:34,489 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-02-04 17:00:34,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:34,490 INFO L225 Difference]: With dead ends: 184 [2018-02-04 17:00:34,490 INFO L226 Difference]: Without dead ends: 184 [2018-02-04 17:00:34,490 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:00:34,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-02-04 17:00:34,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 156. [2018-02-04 17:00:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-02-04 17:00:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2018-02-04 17:00:34,493 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 33 [2018-02-04 17:00:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:34,493 INFO L432 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2018-02-04 17:00:34,493 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 17:00:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2018-02-04 17:00:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-02-04 17:00:34,494 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:34,494 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:34,494 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:34,494 INFO L82 PathProgramCache]: Analyzing trace with hash 416235869, now seen corresponding path program 1 times [2018-02-04 17:00:34,495 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:34,502 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:34,593 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:34,594 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-02-04 17:00:34,594 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:34,594 INFO L182 omatonBuilderFactory]: Interpolants [5248#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 5249#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|))), 5250#(and (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 5251#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base))), 5252#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 5253#(= 1 (select |#valid| |main_#t~mem11.base|)), 5254#(= 1 (select |#valid| main_~x~0.base)), 5243#true, 5244#false, 5245#(= (select |#valid| main_~head~0.base) 1), 5246#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 5247#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base))] [2018-02-04 17:00:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:34,594 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 17:00:34,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 17:00:34,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-02-04 17:00:34,595 INFO L87 Difference]: Start difference. First operand 156 states and 185 transitions. Second operand 12 states. [2018-02-04 17:00:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:34,869 INFO L93 Difference]: Finished difference Result 245 states and 284 transitions. [2018-02-04 17:00:34,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-04 17:00:34,869 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-02-04 17:00:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:34,870 INFO L225 Difference]: With dead ends: 245 [2018-02-04 17:00:34,870 INFO L226 Difference]: Without dead ends: 245 [2018-02-04 17:00:34,870 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2018-02-04 17:00:34,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-02-04 17:00:34,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 186. [2018-02-04 17:00:34,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-02-04 17:00:34,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2018-02-04 17:00:34,873 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 35 [2018-02-04 17:00:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:34,873 INFO L432 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2018-02-04 17:00:34,873 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 17:00:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2018-02-04 17:00:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-02-04 17:00:34,874 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:34,874 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:34,874 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:34,874 INFO L82 PathProgramCache]: Analyzing trace with hash 416235870, now seen corresponding path program 1 times [2018-02-04 17:00:34,874 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:34,881 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:35,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:35,018 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:35,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-02-04 17:00:35,018 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:35,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:35,018 INFO L182 omatonBuilderFactory]: Interpolants [5712#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 5713#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 5714#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 5715#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 5716#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 5717#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| |main_#t~mem11.base|))), 5718#(and (= (select |#length| main_~x~0.base) 8) (= 0 main_~x~0.offset)), 5708#true, 5709#false, 5710#(= (select |#valid| main_~head~0.base) 1), 5711#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:00:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:35,019 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 17:00:35,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 17:00:35,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-02-04 17:00:35,019 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand 11 states. [2018-02-04 17:00:35,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:35,333 INFO L93 Difference]: Finished difference Result 257 states and 293 transitions. [2018-02-04 17:00:35,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 17:00:35,333 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2018-02-04 17:00:35,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:35,334 INFO L225 Difference]: With dead ends: 257 [2018-02-04 17:00:35,334 INFO L226 Difference]: Without dead ends: 257 [2018-02-04 17:00:35,334 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:00:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-02-04 17:00:35,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 199. [2018-02-04 17:00:35,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-02-04 17:00:35,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 237 transitions. [2018-02-04 17:00:35,337 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 237 transitions. Word has length 35 [2018-02-04 17:00:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:35,337 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 237 transitions. [2018-02-04 17:00:35,337 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 17:00:35,337 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 237 transitions. [2018-02-04 17:00:35,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-04 17:00:35,337 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:35,337 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:35,337 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:35,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1483020824, now seen corresponding path program 1 times [2018-02-04 17:00:35,338 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:35,342 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:35,484 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:35,484 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-02-04 17:00:35,484 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:35,484 INFO L182 omatonBuilderFactory]: Interpolants [6192#(= main_~head~0.offset 0), 6193#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 6194#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 6195#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 6196#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 6197#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 6198#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 6199#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 6200#(= 1 (select |#valid| |main_#t~mem13.base|)), 6189#true, 6190#false, 6191#(= 0 |main_#t~malloc0.offset|)] [2018-02-04 17:00:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:35,485 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 17:00:35,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 17:00:35,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-02-04 17:00:35,485 INFO L87 Difference]: Start difference. First operand 199 states and 237 transitions. Second operand 12 states. [2018-02-04 17:00:35,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:35,831 INFO L93 Difference]: Finished difference Result 215 states and 239 transitions. [2018-02-04 17:00:35,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 17:00:35,832 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-02-04 17:00:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:35,833 INFO L225 Difference]: With dead ends: 215 [2018-02-04 17:00:35,833 INFO L226 Difference]: Without dead ends: 215 [2018-02-04 17:00:35,833 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:00:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-02-04 17:00:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2018-02-04 17:00:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-02-04 17:00:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 236 transitions. [2018-02-04 17:00:35,836 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 236 transitions. Word has length 37 [2018-02-04 17:00:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:35,836 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 236 transitions. [2018-02-04 17:00:35,836 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 17:00:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 236 transitions. [2018-02-04 17:00:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-04 17:00:35,836 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:35,836 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:35,836 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:35,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1483020825, now seen corresponding path program 1 times [2018-02-04 17:00:35,837 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:35,841 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:36,007 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:36,007 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-02-04 17:00:36,007 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:36,007 INFO L182 omatonBuilderFactory]: Interpolants [6640#false, 6641#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 6642#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 6643#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 6644#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 6645#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 6646#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 6647#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 6648#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 6649#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0)), 6639#true] [2018-02-04 17:00:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:36,008 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 17:00:36,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 17:00:36,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-02-04 17:00:36,008 INFO L87 Difference]: Start difference. First operand 199 states and 236 transitions. Second operand 11 states. [2018-02-04 17:00:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:36,389 INFO L93 Difference]: Finished difference Result 221 states and 244 transitions. [2018-02-04 17:00:36,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 17:00:36,389 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-02-04 17:00:36,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:36,389 INFO L225 Difference]: With dead ends: 221 [2018-02-04 17:00:36,390 INFO L226 Difference]: Without dead ends: 221 [2018-02-04 17:00:36,390 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-02-04 17:00:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-02-04 17:00:36,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 199. [2018-02-04 17:00:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-02-04 17:00:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 235 transitions. [2018-02-04 17:00:36,392 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 235 transitions. Word has length 37 [2018-02-04 17:00:36,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:36,392 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 235 transitions. [2018-02-04 17:00:36,392 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 17:00:36,392 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 235 transitions. [2018-02-04 17:00:36,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-02-04 17:00:36,393 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:36,393 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:36,393 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:36,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1299548604, now seen corresponding path program 1 times [2018-02-04 17:00:36,394 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:36,403 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:36,566 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:36,566 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-02-04 17:00:36,566 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:36,566 INFO L182 omatonBuilderFactory]: Interpolants [7088#true, 7089#false, 7090#(= (select |#valid| main_~head~0.base) 1), 7091#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 7092#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 7093#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 7094#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 7095#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 7096#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 7097#(= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 7098#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 7099#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 7100#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:00:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:36,567 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:00:36,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:00:36,567 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:00:36,567 INFO L87 Difference]: Start difference. First operand 199 states and 235 transitions. Second operand 13 states. [2018-02-04 17:00:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:36,917 INFO L93 Difference]: Finished difference Result 254 states and 288 transitions. [2018-02-04 17:00:36,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 17:00:36,918 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2018-02-04 17:00:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:36,918 INFO L225 Difference]: With dead ends: 254 [2018-02-04 17:00:36,918 INFO L226 Difference]: Without dead ends: 254 [2018-02-04 17:00:36,919 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2018-02-04 17:00:36,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-02-04 17:00:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 199. [2018-02-04 17:00:36,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-02-04 17:00:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2018-02-04 17:00:36,921 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 39 [2018-02-04 17:00:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:36,921 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2018-02-04 17:00:36,921 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:00:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2018-02-04 17:00:36,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-02-04 17:00:36,921 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:36,921 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:36,921 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:36,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1299548603, now seen corresponding path program 1 times [2018-02-04 17:00:36,922 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:36,927 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:37,173 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:37,173 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:00:37,173 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:37,174 INFO L182 omatonBuilderFactory]: Interpolants [7584#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= (select |#length| main_~head~0.base) 8) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 7585#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= (select |#length| main_~head~0.base) 8) (= main_~x~0.base main_~head~0.base)), 7586#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~head~0.base) 8) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 7587#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~head~0.base) 8) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 7588#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= (select |#length| main_~head~0.base) 8) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 7589#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#length| main_~head~0.base) 8)), 7590#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 7591#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 7592#(and (= |main_#t~mem13.offset| 0) (<= 8 (select |#length| |main_#t~mem13.base|))), 7578#true, 7579#false, 7580#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 7581#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base))), 7582#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1)), 7583#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:00:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:37,174 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:00:37,174 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:00:37,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:00:37,174 INFO L87 Difference]: Start difference. First operand 199 states and 234 transitions. Second operand 15 states. [2018-02-04 17:00:37,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:37,805 INFO L93 Difference]: Finished difference Result 256 states and 289 transitions. [2018-02-04 17:00:37,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 17:00:37,806 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 39 [2018-02-04 17:00:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:37,807 INFO L225 Difference]: With dead ends: 256 [2018-02-04 17:00:37,807 INFO L226 Difference]: Without dead ends: 256 [2018-02-04 17:00:37,807 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-02-04 17:00:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-02-04 17:00:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 199. [2018-02-04 17:00:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-02-04 17:00:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 233 transitions. [2018-02-04 17:00:37,810 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 233 transitions. Word has length 39 [2018-02-04 17:00:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:37,811 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 233 transitions. [2018-02-04 17:00:37,811 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:00:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 233 transitions. [2018-02-04 17:00:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-02-04 17:00:37,811 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:37,811 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:37,811 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:37,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1631760714, now seen corresponding path program 1 times [2018-02-04 17:00:37,812 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:37,820 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:38,025 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:38,025 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-02-04 17:00:38,025 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:38,026 INFO L182 omatonBuilderFactory]: Interpolants [8076#true, 8077#false, 8078#(= (select |#valid| main_~head~0.base) 1), 8079#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 8080#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 8081#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 8082#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8083#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 8084#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 8085#(and (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8086#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0)), 8087#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8088#(and (<= 0 |main_#t~mem20.offset|) (<= (+ |main_#t~mem20.offset| 8) (select |#length| |main_#t~mem20.base|))), 8089#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-02-04 17:00:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:38,026 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 17:00:38,026 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 17:00:38,026 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-02-04 17:00:38,026 INFO L87 Difference]: Start difference. First operand 199 states and 233 transitions. Second operand 14 states. [2018-02-04 17:00:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:38,531 INFO L93 Difference]: Finished difference Result 256 states and 290 transitions. [2018-02-04 17:00:38,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-02-04 17:00:38,531 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2018-02-04 17:00:38,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:38,532 INFO L225 Difference]: With dead ends: 256 [2018-02-04 17:00:38,532 INFO L226 Difference]: Without dead ends: 256 [2018-02-04 17:00:38,532 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:00:38,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-02-04 17:00:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 221. [2018-02-04 17:00:38,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-04 17:00:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 268 transitions. [2018-02-04 17:00:38,535 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 268 transitions. Word has length 40 [2018-02-04 17:00:38,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:38,535 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 268 transitions. [2018-02-04 17:00:38,535 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 17:00:38,535 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 268 transitions. [2018-02-04 17:00:38,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-02-04 17:00:38,536 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:38,536 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:38,536 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:38,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1429185466, now seen corresponding path program 1 times [2018-02-04 17:00:38,536 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:38,543 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-02-04 17:00:38,579 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:38,579 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 17:00:38,579 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:38,579 INFO L182 omatonBuilderFactory]: Interpolants [8595#true, 8596#false, 8597#(= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)), 8598#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 8599#(= 1 (select |#valid| |main_#t~mem15.base|))] [2018-02-04 17:00:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-02-04 17:00:38,593 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 17:00:38,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 17:00:38,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:00:38,594 INFO L87 Difference]: Start difference. First operand 221 states and 268 transitions. Second operand 5 states. [2018-02-04 17:00:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:38,681 INFO L93 Difference]: Finished difference Result 226 states and 269 transitions. [2018-02-04 17:00:38,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 17:00:38,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-02-04 17:00:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:38,682 INFO L225 Difference]: With dead ends: 226 [2018-02-04 17:00:38,683 INFO L226 Difference]: Without dead ends: 226 [2018-02-04 17:00:38,683 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 17:00:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-02-04 17:00:38,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2018-02-04 17:00:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-02-04 17:00:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 263 transitions. [2018-02-04 17:00:38,686 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 263 transitions. Word has length 42 [2018-02-04 17:00:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:38,686 INFO L432 AbstractCegarLoop]: Abstraction has 220 states and 263 transitions. [2018-02-04 17:00:38,686 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 17:00:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 263 transitions. [2018-02-04 17:00:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-02-04 17:00:38,687 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:38,687 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:38,687 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:38,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1429185465, now seen corresponding path program 1 times [2018-02-04 17:00:38,688 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:38,695 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:38,917 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:38,917 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:38,917 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-02-04 17:00:38,917 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:38,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:38,918 INFO L182 omatonBuilderFactory]: Interpolants [9056#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 9057#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 9058#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 9059#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 9060#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 9061#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 9062#(and (<= 0 |main_#t~mem15.offset|) (<= |main_#t~mem15.offset| 0) (= (select |#length| |main_#t~mem15.base|) 8)), 9051#true, 9052#false, 9053#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 9054#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 9055#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:38,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:38,918 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 17:00:38,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 17:00:38,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-04 17:00:38,918 INFO L87 Difference]: Start difference. First operand 220 states and 263 transitions. Second operand 12 states. [2018-02-04 17:00:39,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:39,245 INFO L93 Difference]: Finished difference Result 240 states and 272 transitions. [2018-02-04 17:00:39,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 17:00:39,245 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-02-04 17:00:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:39,246 INFO L225 Difference]: With dead ends: 240 [2018-02-04 17:00:39,246 INFO L226 Difference]: Without dead ends: 240 [2018-02-04 17:00:39,246 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:00:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-02-04 17:00:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 220. [2018-02-04 17:00:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-02-04 17:00:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 262 transitions. [2018-02-04 17:00:39,248 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 262 transitions. Word has length 42 [2018-02-04 17:00:39,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:39,248 INFO L432 AbstractCegarLoop]: Abstraction has 220 states and 262 transitions. [2018-02-04 17:00:39,248 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 17:00:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 262 transitions. [2018-02-04 17:00:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-02-04 17:00:39,248 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:39,248 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:39,248 INFO L371 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:39,249 INFO L82 PathProgramCache]: Analyzing trace with hash -458979518, now seen corresponding path program 1 times [2018-02-04 17:00:39,249 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:39,255 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:39,414 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:39,414 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:00:39,414 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:39,414 INFO L182 omatonBuilderFactory]: Interpolants [9543#true, 9544#false, 9545#(= (select |#valid| main_~head~0.base) 1), 9546#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 9547#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 9548#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 9549#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9550#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 9551#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9552#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9553#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0)), 9554#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9555#(and (= 8 (select |#length| |main_#t~mem20.base|)) (<= 0 |main_#t~mem20.offset|)), 9556#(and (= (select |#length| main_~x~0.base) 8) (<= 0 main_~x~0.offset)), 9557#(and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset))] [2018-02-04 17:00:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:39,415 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:00:39,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:00:39,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:00:39,415 INFO L87 Difference]: Start difference. First operand 220 states and 262 transitions. Second operand 15 states. [2018-02-04 17:00:39,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:39,865 INFO L93 Difference]: Finished difference Result 252 states and 283 transitions. [2018-02-04 17:00:39,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 17:00:39,866 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2018-02-04 17:00:39,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:39,866 INFO L225 Difference]: With dead ends: 252 [2018-02-04 17:00:39,866 INFO L226 Difference]: Without dead ends: 252 [2018-02-04 17:00:39,867 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:00:39,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-02-04 17:00:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 221. [2018-02-04 17:00:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-04 17:00:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 263 transitions. [2018-02-04 17:00:39,869 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 263 transitions. Word has length 42 [2018-02-04 17:00:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:39,869 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 263 transitions. [2018-02-04 17:00:39,869 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:00:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 263 transitions. [2018-02-04 17:00:39,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-02-04 17:00:39,870 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:39,870 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:39,870 INFO L371 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:39,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1094809275, now seen corresponding path program 1 times [2018-02-04 17:00:39,870 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:39,875 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 17:00:40,171 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:40,171 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-04 17:00:40,171 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:40,171 INFO L182 omatonBuilderFactory]: Interpolants [10057#true, 10058#false, 10059#(= 0 |main_#t~malloc0.offset|), 10060#(= main_~head~0.offset 0), 10061#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10062#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 10063#(and (= main_~head~0.base |main_#t~mem11.base|) (= main_~head~0.offset |main_#t~mem11.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~mem11.offset|) |main_#t~mem11.base|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10064#(and (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.base main_~x~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10065#(and (= main_~head~0.offset main_~x~0.offset) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~head~0.base main_~x~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10066#(and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10067#(and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= main_~head~0.offset |main_#t~mem13.offset|)), 10068#(and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~x~0.offset 4)) |main_#t~mem14|) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 10069#(and (not |main_#t~short18|) (= main_~head~0.offset 0))] [2018-02-04 17:00:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 17:00:40,172 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:00:40,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:00:40,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:00:40,172 INFO L87 Difference]: Start difference. First operand 221 states and 263 transitions. Second operand 13 states. [2018-02-04 17:00:40,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:40,419 INFO L93 Difference]: Finished difference Result 230 states and 262 transitions. [2018-02-04 17:00:40,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-02-04 17:00:40,419 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2018-02-04 17:00:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:40,420 INFO L225 Difference]: With dead ends: 230 [2018-02-04 17:00:40,420 INFO L226 Difference]: Without dead ends: 230 [2018-02-04 17:00:40,420 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:00:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-02-04 17:00:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 221. [2018-02-04 17:00:40,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-04 17:00:40,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 262 transitions. [2018-02-04 17:00:40,424 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 262 transitions. Word has length 44 [2018-02-04 17:00:40,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:40,424 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 262 transitions. [2018-02-04 17:00:40,424 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:00:40,424 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 262 transitions. [2018-02-04 17:00:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-02-04 17:00:40,425 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:40,425 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:40,425 INFO L371 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:40,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1302319747, now seen corresponding path program 1 times [2018-02-04 17:00:40,425 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:40,434 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:40,721 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:40,721 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:00:40,721 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:40,721 INFO L182 omatonBuilderFactory]: Interpolants [10543#true, 10544#false, 10545#(= 0 |main_#t~malloc0.offset|), 10546#(= main_~head~0.offset 0), 10547#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 10548#(and (= main_~head~0.offset main_~x~0.offset) (= main_~state~0 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 10549#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~state~0 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 10550#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~state~0 1) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 10551#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= main_~state~0 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 10552#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= main_~state~0 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 10553#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10554#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 1) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10555#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~x~0.offset 4)) 1) (= main_~head~0.offset 0)), 10556#(and (= |main_#t~mem12| 1) (= main_~head~0.offset 0))] [2018-02-04 17:00:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:40,722 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 17:00:40,722 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 17:00:40,722 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-02-04 17:00:40,722 INFO L87 Difference]: Start difference. First operand 221 states and 262 transitions. Second operand 14 states. [2018-02-04 17:00:41,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:41,129 INFO L93 Difference]: Finished difference Result 287 states and 331 transitions. [2018-02-04 17:00:41,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 17:00:41,129 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-02-04 17:00:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:41,130 INFO L225 Difference]: With dead ends: 287 [2018-02-04 17:00:41,130 INFO L226 Difference]: Without dead ends: 287 [2018-02-04 17:00:41,130 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:00:41,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-02-04 17:00:41,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 230. [2018-02-04 17:00:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-02-04 17:00:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 271 transitions. [2018-02-04 17:00:41,133 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 271 transitions. Word has length 44 [2018-02-04 17:00:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:41,133 INFO L432 AbstractCegarLoop]: Abstraction has 230 states and 271 transitions. [2018-02-04 17:00:41,133 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 17:00:41,133 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 271 transitions. [2018-02-04 17:00:41,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-02-04 17:00:41,134 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:41,134 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:41,134 INFO L371 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:41,134 INFO L82 PathProgramCache]: Analyzing trace with hash 683260827, now seen corresponding path program 1 times [2018-02-04 17:00:41,134 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:41,143 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:41,326 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:41,326 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-02-04 17:00:41,326 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:41,327 INFO L182 omatonBuilderFactory]: Interpolants [11104#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 11105#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 11106#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 11107#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 11108#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 11109#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 11110#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)), 11111#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 11112#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 11113#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 11114#(and (<= 0 |main_#t~mem15.offset|) (<= (+ |main_#t~mem15.offset| 8) (select |#length| |main_#t~mem15.base|))), 11098#true, 11099#false, 11100#(= 0 |main_#t~malloc0.offset|), 11101#(= 0 main_~head~0.offset), 11102#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 11103#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:00:41,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:41,327 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 17:00:41,327 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 17:00:41,327 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2018-02-04 17:00:41,327 INFO L87 Difference]: Start difference. First operand 230 states and 271 transitions. Second operand 17 states. [2018-02-04 17:00:41,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:41,846 INFO L93 Difference]: Finished difference Result 258 states and 288 transitions. [2018-02-04 17:00:41,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 17:00:41,846 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2018-02-04 17:00:41,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:41,847 INFO L225 Difference]: With dead ends: 258 [2018-02-04 17:00:41,847 INFO L226 Difference]: Without dead ends: 258 [2018-02-04 17:00:41,847 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=236, Invalid=886, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 17:00:41,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-02-04 17:00:41,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 230. [2018-02-04 17:00:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-02-04 17:00:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 270 transitions. [2018-02-04 17:00:41,850 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 270 transitions. Word has length 44 [2018-02-04 17:00:41,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:41,850 INFO L432 AbstractCegarLoop]: Abstraction has 230 states and 270 transitions. [2018-02-04 17:00:41,850 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 17:00:41,851 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 270 transitions. [2018-02-04 17:00:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-02-04 17:00:41,851 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:41,851 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:41,851 INFO L371 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:41,851 INFO L82 PathProgramCache]: Analyzing trace with hash 385787049, now seen corresponding path program 1 times [2018-02-04 17:00:41,852 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:41,860 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:42,222 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:42,222 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-04 17:00:42,222 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:42,223 INFO L182 omatonBuilderFactory]: Interpolants [11648#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 11649#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 11650#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~x~0.offset 4)) 0))), 11651#(and (= main_~head~0.offset 0) (not (= |main_#t~mem12| 0))), 11637#true, 11638#false, 11639#(= 0 |main_#t~malloc0.offset|), 11640#(= main_~head~0.offset 0), 11641#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 11642#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 11643#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 11644#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 11645#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 11646#(and (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 11647#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~state~0 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:42,223 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:00:42,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:00:42,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:00:42,223 INFO L87 Difference]: Start difference. First operand 230 states and 270 transitions. Second operand 15 states. [2018-02-04 17:00:42,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:42,692 INFO L93 Difference]: Finished difference Result 290 states and 332 transitions. [2018-02-04 17:00:42,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-04 17:00:42,692 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-02-04 17:00:42,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:42,693 INFO L225 Difference]: With dead ends: 290 [2018-02-04 17:00:42,693 INFO L226 Difference]: Without dead ends: 290 [2018-02-04 17:00:42,693 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:00:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-02-04 17:00:42,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 221. [2018-02-04 17:00:42,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-04 17:00:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 260 transitions. [2018-02-04 17:00:42,695 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 260 transitions. Word has length 45 [2018-02-04 17:00:42,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:42,696 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 260 transitions. [2018-02-04 17:00:42,696 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:00:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 260 transitions. [2018-02-04 17:00:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-02-04 17:00:42,696 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:42,696 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:42,696 INFO L371 AbstractCegarLoop]: === Iteration 34 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:42,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1615923171, now seen corresponding path program 1 times [2018-02-04 17:00:42,697 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:42,700 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:42,718 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:42,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 17:00:42,718 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:42,718 INFO L182 omatonBuilderFactory]: Interpolants [12189#true, 12190#false, 12191#(= main_~state~0 2)] [2018-02-04 17:00:42,719 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:42,719 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 17:00:42,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 17:00:42,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:00:42,719 INFO L87 Difference]: Start difference. First operand 221 states and 260 transitions. Second operand 3 states. [2018-02-04 17:00:42,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:42,732 INFO L93 Difference]: Finished difference Result 331 states and 388 transitions. [2018-02-04 17:00:42,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 17:00:42,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-02-04 17:00:42,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:42,733 INFO L225 Difference]: With dead ends: 331 [2018-02-04 17:00:42,733 INFO L226 Difference]: Without dead ends: 331 [2018-02-04 17:00:42,734 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:00:42,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-02-04 17:00:42,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 237. [2018-02-04 17:00:42,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-02-04 17:00:42,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 278 transitions. [2018-02-04 17:00:42,737 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 278 transitions. Word has length 45 [2018-02-04 17:00:42,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:42,737 INFO L432 AbstractCegarLoop]: Abstraction has 237 states and 278 transitions. [2018-02-04 17:00:42,737 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 17:00:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 278 transitions. [2018-02-04 17:00:42,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 17:00:42,738 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:42,738 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:42,738 INFO L371 AbstractCegarLoop]: === Iteration 35 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:42,738 INFO L82 PathProgramCache]: Analyzing trace with hash -156854704, now seen corresponding path program 1 times [2018-02-04 17:00:42,738 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:42,742 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:00:42,774 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:00:42,774 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 17:00:42,774 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:42,774 INFO L182 omatonBuilderFactory]: Interpolants [12760#true, 12761#false, 12762#(= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)), 12763#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 12764#(= 1 (select |#valid| |main_#t~mem19.base|)), 12765#(= 1 (select |#valid| main_~x~0.base))] [2018-02-04 17:00:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:00:42,775 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 17:00:42,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 17:00:42,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 17:00:42,775 INFO L87 Difference]: Start difference. First operand 237 states and 278 transitions. Second operand 6 states. [2018-02-04 17:00:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:42,872 INFO L93 Difference]: Finished difference Result 240 states and 279 transitions. [2018-02-04 17:00:42,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 17:00:42,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-02-04 17:00:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:42,873 INFO L225 Difference]: With dead ends: 240 [2018-02-04 17:00:42,873 INFO L226 Difference]: Without dead ends: 240 [2018-02-04 17:00:42,873 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-02-04 17:00:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-02-04 17:00:42,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2018-02-04 17:00:42,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2018-02-04 17:00:42,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 279 transitions. [2018-02-04 17:00:42,875 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 279 transitions. Word has length 47 [2018-02-04 17:00:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:42,875 INFO L432 AbstractCegarLoop]: Abstraction has 239 states and 279 transitions. [2018-02-04 17:00:42,875 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 17:00:42,876 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 279 transitions. [2018-02-04 17:00:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 17:00:42,876 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:42,876 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:42,876 INFO L371 AbstractCegarLoop]: === Iteration 36 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:42,876 INFO L82 PathProgramCache]: Analyzing trace with hash -156854703, now seen corresponding path program 1 times [2018-02-04 17:00:42,877 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:42,884 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:43,080 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:43,081 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-04 17:00:43,081 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:43,081 INFO L182 omatonBuilderFactory]: Interpolants [13253#true, 13254#false, 13255#(= 0 |main_#t~malloc0.offset|), 13256#(= 0 main_~head~0.offset), 13257#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 13258#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 13259#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 13260#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 13261#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 13262#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 13263#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 13264#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 13265#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)), 13266#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 13267#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 13268#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 13269#(and (<= 0 |main_#t~mem19.offset|) (<= (+ |main_#t~mem19.offset| 8) (select |#length| |main_#t~mem19.base|))), 13270#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-02-04 17:00:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:43,081 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 17:00:43,081 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 17:00:43,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:00:43,081 INFO L87 Difference]: Start difference. First operand 239 states and 279 transitions. Second operand 18 states. [2018-02-04 17:00:43,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:43,671 INFO L93 Difference]: Finished difference Result 284 states and 317 transitions. [2018-02-04 17:00:43,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-04 17:00:43,671 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 47 [2018-02-04 17:00:43,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:43,671 INFO L225 Difference]: With dead ends: 284 [2018-02-04 17:00:43,672 INFO L226 Difference]: Without dead ends: 284 [2018-02-04 17:00:43,672 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=1076, Unknown=0, NotChecked=0, Total=1332 [2018-02-04 17:00:43,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-02-04 17:00:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 255. [2018-02-04 17:00:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-02-04 17:00:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 300 transitions. [2018-02-04 17:00:43,674 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 300 transitions. Word has length 47 [2018-02-04 17:00:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:43,674 INFO L432 AbstractCegarLoop]: Abstraction has 255 states and 300 transitions. [2018-02-04 17:00:43,674 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 17:00:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 300 transitions. [2018-02-04 17:00:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-02-04 17:00:43,674 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:43,674 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:43,674 INFO L371 AbstractCegarLoop]: === Iteration 37 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:43,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1047954627, now seen corresponding path program 1 times [2018-02-04 17:00:43,675 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:43,682 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 17:00:44,057 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:44,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-02-04 17:00:44,057 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:44,058 INFO L182 omatonBuilderFactory]: Interpolants [13856#(and (= main_~head~0.offset main_~x~0.offset) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 13857#(and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 13858#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem19.offset|) (not (= 0 (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 13859#(and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 13860#(and (= main_~head~0.offset 0) (not (= 0 |main_#t~mem12|))), 13848#true, 13849#false, 13850#(= 0 |main_#t~malloc0.offset|), 13851#(= main_~head~0.offset 0), 13852#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 13853#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 13854#(and (= main_~head~0.base |main_#t~mem11.base|) (= main_~head~0.offset |main_#t~mem11.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~mem11.offset|) |main_#t~mem11.base|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 13855#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 17:00:44,058 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:00:44,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:00:44,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:00:44,058 INFO L87 Difference]: Start difference. First operand 255 states and 300 transitions. Second operand 13 states. [2018-02-04 17:00:44,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:44,280 INFO L93 Difference]: Finished difference Result 264 states and 300 transitions. [2018-02-04 17:00:44,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 17:00:44,281 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2018-02-04 17:00:44,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:44,281 INFO L225 Difference]: With dead ends: 264 [2018-02-04 17:00:44,281 INFO L226 Difference]: Without dead ends: 264 [2018-02-04 17:00:44,281 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:00:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-02-04 17:00:44,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 255. [2018-02-04 17:00:44,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-02-04 17:00:44,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 299 transitions. [2018-02-04 17:00:44,283 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 299 transitions. Word has length 48 [2018-02-04 17:00:44,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:44,283 INFO L432 AbstractCegarLoop]: Abstraction has 255 states and 299 transitions. [2018-02-04 17:00:44,283 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:00:44,284 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 299 transitions. [2018-02-04 17:00:44,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 17:00:44,284 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:44,284 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:44,284 INFO L371 AbstractCegarLoop]: === Iteration 38 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:44,284 INFO L82 PathProgramCache]: Analyzing trace with hash -731024595, now seen corresponding path program 1 times [2018-02-04 17:00:44,285 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:44,291 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:44,504 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:44,504 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-02-04 17:00:44,504 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:44,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:44,504 INFO L182 omatonBuilderFactory]: Interpolants [14400#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 14401#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 14402#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 14403#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 14404#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 14405#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 14406#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 14407#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 14408#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 14409#(and (<= 0 |main_#t~mem19.offset|) (= 8 (select |#length| |main_#t~mem19.base|)) (<= |main_#t~mem19.offset| 0)), 14410#(and (= (select |#length| main_~x~0.base) 8) (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)), 14398#true, 14399#false] [2018-02-04 17:00:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:44,505 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:00:44,505 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:00:44,505 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:00:44,505 INFO L87 Difference]: Start difference. First operand 255 states and 299 transitions. Second operand 13 states. [2018-02-04 17:00:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:44,931 INFO L93 Difference]: Finished difference Result 292 states and 329 transitions. [2018-02-04 17:00:44,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 17:00:44,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2018-02-04 17:00:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:44,931 INFO L225 Difference]: With dead ends: 292 [2018-02-04 17:00:44,932 INFO L226 Difference]: Without dead ends: 292 [2018-02-04 17:00:44,932 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2018-02-04 17:00:44,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-02-04 17:00:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 271. [2018-02-04 17:00:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-02-04 17:00:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 320 transitions. [2018-02-04 17:00:44,935 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 320 transitions. Word has length 49 [2018-02-04 17:00:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:44,935 INFO L432 AbstractCegarLoop]: Abstraction has 271 states and 320 transitions. [2018-02-04 17:00:44,935 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:00:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 320 transitions. [2018-02-04 17:00:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 17:00:44,936 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:44,936 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:44,936 INFO L371 AbstractCegarLoop]: === Iteration 39 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:44,936 INFO L82 PathProgramCache]: Analyzing trace with hash 403414204, now seen corresponding path program 2 times [2018-02-04 17:00:44,937 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:44,944 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:45,129 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:45,129 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:00:45,129 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:45,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:45,130 INFO L182 omatonBuilderFactory]: Interpolants [15008#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|))), 15009#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 15010#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 15011#(= 1 (select |#valid| |main_#t~mem11.base|)), 15012#(= 1 (select |#valid| main_~x~0.base)), 14998#true, 14999#false, 15000#(= (select |#valid| main_~head~0.base) 1), 15001#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 15002#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 15003#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 15004#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1)), 15005#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 15006#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 15007#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:00:45,130 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:45,130 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:00:45,130 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:00:45,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:00:45,131 INFO L87 Difference]: Start difference. First operand 271 states and 320 transitions. Second operand 15 states. [2018-02-04 17:00:45,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:45,517 INFO L93 Difference]: Finished difference Result 384 states and 446 transitions. [2018-02-04 17:00:45,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-04 17:00:45,517 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 49 [2018-02-04 17:00:45,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:45,518 INFO L225 Difference]: With dead ends: 384 [2018-02-04 17:00:45,518 INFO L226 Difference]: Without dead ends: 384 [2018-02-04 17:00:45,518 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=728, Unknown=0, NotChecked=0, Total=930 [2018-02-04 17:00:45,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-02-04 17:00:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 315. [2018-02-04 17:00:45,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-02-04 17:00:45,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 369 transitions. [2018-02-04 17:00:45,520 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 369 transitions. Word has length 49 [2018-02-04 17:00:45,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:45,520 INFO L432 AbstractCegarLoop]: Abstraction has 315 states and 369 transitions. [2018-02-04 17:00:45,520 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:00:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 369 transitions. [2018-02-04 17:00:45,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 17:00:45,521 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:45,521 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:45,521 INFO L371 AbstractCegarLoop]: === Iteration 40 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:45,521 INFO L82 PathProgramCache]: Analyzing trace with hash 403414205, now seen corresponding path program 2 times [2018-02-04 17:00:45,521 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:45,538 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:45,718 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:45,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-04 17:00:45,718 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:45,719 INFO L182 omatonBuilderFactory]: Interpolants [15744#true, 15745#false, 15746#(= (select |#valid| main_~head~0.base) 1), 15747#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 15748#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 15749#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 15750#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 8 (select |#length| |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 15751#(and (= 8 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 15752#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 15753#(and (= (select |#length| main_~x~0.base) 8) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 15754#(and (= (select |#length| main_~x~0.base) 8) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 15755#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 15756#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 15757#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 15758#(and (<= 8 (select |#length| |main_#t~mem11.base|)) (= 0 |main_#t~mem11.offset|)), 15759#(and (<= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-02-04 17:00:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:45,719 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-04 17:00:45,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-04 17:00:45,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2018-02-04 17:00:45,719 INFO L87 Difference]: Start difference. First operand 315 states and 369 transitions. Second operand 16 states. [2018-02-04 17:00:46,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:46,198 INFO L93 Difference]: Finished difference Result 390 states and 448 transitions. [2018-02-04 17:00:46,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 17:00:46,198 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 49 [2018-02-04 17:00:46,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:46,199 INFO L225 Difference]: With dead ends: 390 [2018-02-04 17:00:46,199 INFO L226 Difference]: Without dead ends: 390 [2018-02-04 17:00:46,199 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:00:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2018-02-04 17:00:46,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 330. [2018-02-04 17:00:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-02-04 17:00:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 389 transitions. [2018-02-04 17:00:46,202 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 389 transitions. Word has length 49 [2018-02-04 17:00:46,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:46,202 INFO L432 AbstractCegarLoop]: Abstraction has 330 states and 389 transitions. [2018-02-04 17:00:46,202 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-04 17:00:46,202 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 389 transitions. [2018-02-04 17:00:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-04 17:00:46,202 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:46,202 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:46,202 INFO L371 AbstractCegarLoop]: === Iteration 41 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:46,202 INFO L82 PathProgramCache]: Analyzing trace with hash 2046302647, now seen corresponding path program 1 times [2018-02-04 17:00:46,203 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:46,207 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:46,387 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:46,387 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:00:46,387 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:46,387 INFO L182 omatonBuilderFactory]: Interpolants [16512#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 16513#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 16514#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 16515#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 16516#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 16517#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 16518#(= 1 (select |#valid| |main_#t~mem13.base|)), 16504#true, 16505#false, 16506#(= (select |#valid| main_~head~0.base) 1), 16507#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 16508#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 16509#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 16510#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 16511#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:46,388 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:00:46,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:00:46,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:00:46,388 INFO L87 Difference]: Start difference. First operand 330 states and 389 transitions. Second operand 15 states. [2018-02-04 17:00:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:46,892 INFO L93 Difference]: Finished difference Result 347 states and 395 transitions. [2018-02-04 17:00:46,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-02-04 17:00:46,892 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2018-02-04 17:00:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:46,893 INFO L225 Difference]: With dead ends: 347 [2018-02-04 17:00:46,894 INFO L226 Difference]: Without dead ends: 347 [2018-02-04 17:00:46,894 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:00:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-02-04 17:00:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 330. [2018-02-04 17:00:46,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-02-04 17:00:46,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 388 transitions. [2018-02-04 17:00:46,897 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 388 transitions. Word has length 51 [2018-02-04 17:00:46,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:46,898 INFO L432 AbstractCegarLoop]: Abstraction has 330 states and 388 transitions. [2018-02-04 17:00:46,898 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:00:46,898 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 388 transitions. [2018-02-04 17:00:46,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-04 17:00:46,898 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:46,899 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:46,899 INFO L371 AbstractCegarLoop]: === Iteration 42 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:46,899 INFO L82 PathProgramCache]: Analyzing trace with hash 2046302648, now seen corresponding path program 1 times [2018-02-04 17:00:46,899 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:46,906 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:47,190 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:47,190 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:00:47,190 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:47,190 INFO L182 omatonBuilderFactory]: Interpolants [17226#true, 17227#false, 17228#(= (select |#valid| main_~head~0.base) 1), 17229#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 17230#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 17231#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 17232#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 17233#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 17234#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 17235#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 17236#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 17237#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 17238#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 17239#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 17240#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0))] [2018-02-04 17:00:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:47,190 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:00:47,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:00:47,191 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:00:47,191 INFO L87 Difference]: Start difference. First operand 330 states and 388 transitions. Second operand 15 states. [2018-02-04 17:00:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:47,699 INFO L93 Difference]: Finished difference Result 349 states and 396 transitions. [2018-02-04 17:00:47,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-04 17:00:47,699 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2018-02-04 17:00:47,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:47,700 INFO L225 Difference]: With dead ends: 349 [2018-02-04 17:00:47,700 INFO L226 Difference]: Without dead ends: 349 [2018-02-04 17:00:47,700 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:00:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-02-04 17:00:47,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 330. [2018-02-04 17:00:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-02-04 17:00:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 387 transitions. [2018-02-04 17:00:47,702 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 387 transitions. Word has length 51 [2018-02-04 17:00:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:47,702 INFO L432 AbstractCegarLoop]: Abstraction has 330 states and 387 transitions. [2018-02-04 17:00:47,702 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:00:47,702 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 387 transitions. [2018-02-04 17:00:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-04 17:00:47,703 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:47,703 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:47,703 INFO L371 AbstractCegarLoop]: === Iteration 43 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:47,703 INFO L82 PathProgramCache]: Analyzing trace with hash 755837075, now seen corresponding path program 1 times [2018-02-04 17:00:47,703 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:47,708 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:47,856 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:47,856 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-02-04 17:00:47,856 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:47,856 INFO L182 omatonBuilderFactory]: Interpolants [17952#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 17953#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 17954#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 17955#(= 1 (select |#valid| |main_#t~mem13.base|)), 17942#true, 17943#false, 17944#(= 0 |main_#t~malloc0.offset|), 17945#(= main_~head~0.offset 0), 17946#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 17947#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 17948#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 17949#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))), 17950#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 17951#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))] [2018-02-04 17:00:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:47,857 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 17:00:47,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 17:00:47,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-02-04 17:00:47,857 INFO L87 Difference]: Start difference. First operand 330 states and 387 transitions. Second operand 14 states. [2018-02-04 17:00:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:48,293 INFO L93 Difference]: Finished difference Result 343 states and 389 transitions. [2018-02-04 17:00:48,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 17:00:48,293 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2018-02-04 17:00:48,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:48,294 INFO L225 Difference]: With dead ends: 343 [2018-02-04 17:00:48,294 INFO L226 Difference]: Without dead ends: 343 [2018-02-04 17:00:48,294 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-02-04 17:00:48,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2018-02-04 17:00:48,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 330. [2018-02-04 17:00:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-02-04 17:00:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 386 transitions. [2018-02-04 17:00:48,296 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 386 transitions. Word has length 53 [2018-02-04 17:00:48,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:48,297 INFO L432 AbstractCegarLoop]: Abstraction has 330 states and 386 transitions. [2018-02-04 17:00:48,297 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 17:00:48,297 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 386 transitions. [2018-02-04 17:00:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-04 17:00:48,297 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:48,297 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:48,297 INFO L371 AbstractCegarLoop]: === Iteration 44 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:48,297 INFO L82 PathProgramCache]: Analyzing trace with hash 755837076, now seen corresponding path program 1 times [2018-02-04 17:00:48,298 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:48,301 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:48,442 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:48,442 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-02-04 17:00:48,442 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:48,442 INFO L182 omatonBuilderFactory]: Interpolants [18659#true, 18660#false, 18661#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 18662#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 18663#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 18664#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 18665#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))), 18666#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 18667#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 18668#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 18669#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 18670#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 18671#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0))] [2018-02-04 17:00:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:48,442 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:00:48,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:00:48,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:00:48,443 INFO L87 Difference]: Start difference. First operand 330 states and 386 transitions. Second operand 13 states. [2018-02-04 17:00:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:48,875 INFO L93 Difference]: Finished difference Result 349 states and 394 transitions. [2018-02-04 17:00:48,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-02-04 17:00:48,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2018-02-04 17:00:48,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:48,876 INFO L225 Difference]: With dead ends: 349 [2018-02-04 17:00:48,876 INFO L226 Difference]: Without dead ends: 349 [2018-02-04 17:00:48,876 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:00:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-02-04 17:00:48,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 330. [2018-02-04 17:00:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-02-04 17:00:48,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 385 transitions. [2018-02-04 17:00:48,879 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 385 transitions. Word has length 53 [2018-02-04 17:00:48,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:48,879 INFO L432 AbstractCegarLoop]: Abstraction has 330 states and 385 transitions. [2018-02-04 17:00:48,879 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:00:48,879 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 385 transitions. [2018-02-04 17:00:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-04 17:00:48,879 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:48,879 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:48,879 INFO L371 AbstractCegarLoop]: === Iteration 45 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:48,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1151595997, now seen corresponding path program 2 times [2018-02-04 17:00:48,880 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:48,884 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:49,094 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:49,095 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:49,095 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-04 17:00:49,095 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:49,095 INFO L182 omatonBuilderFactory]: Interpolants [19373#true, 19374#false, 19375#(= (select |#valid| main_~head~0.base) 1), 19376#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 19377#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 19378#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 19379#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 19380#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 19381#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 19382#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 19383#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 19384#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 19385#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 19386#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 19387#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 19388#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 19389#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 19390#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:00:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:49,095 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 17:00:49,095 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 17:00:49,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:00:49,096 INFO L87 Difference]: Start difference. First operand 330 states and 385 transitions. Second operand 18 states. [2018-02-04 17:00:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:49,645 INFO L93 Difference]: Finished difference Result 401 states and 461 transitions. [2018-02-04 17:00:49,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-04 17:00:49,645 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 53 [2018-02-04 17:00:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:49,646 INFO L225 Difference]: With dead ends: 401 [2018-02-04 17:00:49,646 INFO L226 Difference]: Without dead ends: 401 [2018-02-04 17:00:49,646 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2018-02-04 17:00:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-02-04 17:00:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 330. [2018-02-04 17:00:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-02-04 17:00:49,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 384 transitions. [2018-02-04 17:00:49,648 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 384 transitions. Word has length 53 [2018-02-04 17:00:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:49,649 INFO L432 AbstractCegarLoop]: Abstraction has 330 states and 384 transitions. [2018-02-04 17:00:49,649 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 17:00:49,649 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 384 transitions. [2018-02-04 17:00:49,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-04 17:00:49,649 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:49,649 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:49,649 INFO L371 AbstractCegarLoop]: === Iteration 46 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:49,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1151595996, now seen corresponding path program 2 times [2018-02-04 17:00:49,650 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:49,658 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:49,912 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:49,912 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-04 17:00:49,912 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:49,913 INFO L182 omatonBuilderFactory]: Interpolants [20160#(= (select |#valid| main_~head~0.base) 1), 20161#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 20162#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 20163#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 20164#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 20165#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 20166#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 20167#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 20168#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 20169#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20170#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 20171#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20172#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0))), 20173#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= 0 main_~x~0.offset)), 20174#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 20175#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0)), 20158#true, 20159#false] [2018-02-04 17:00:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:49,913 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 17:00:49,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 17:00:49,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:00:49,913 INFO L87 Difference]: Start difference. First operand 330 states and 384 transitions. Second operand 18 states. [2018-02-04 17:00:50,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:50,565 INFO L93 Difference]: Finished difference Result 388 states and 442 transitions. [2018-02-04 17:00:50,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 17:00:50,565 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 53 [2018-02-04 17:00:50,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:50,566 INFO L225 Difference]: With dead ends: 388 [2018-02-04 17:00:50,566 INFO L226 Difference]: Without dead ends: 388 [2018-02-04 17:00:50,566 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2018-02-04 17:00:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-02-04 17:00:50,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 330. [2018-02-04 17:00:50,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-02-04 17:00:50,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 383 transitions. [2018-02-04 17:00:50,568 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 383 transitions. Word has length 53 [2018-02-04 17:00:50,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:50,568 INFO L432 AbstractCegarLoop]: Abstraction has 330 states and 383 transitions. [2018-02-04 17:00:50,568 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 17:00:50,568 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 383 transitions. [2018-02-04 17:00:50,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-02-04 17:00:50,569 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:50,569 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:50,569 INFO L371 AbstractCegarLoop]: === Iteration 47 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:50,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1340197193, now seen corresponding path program 2 times [2018-02-04 17:00:50,569 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:50,574 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:50,828 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:50,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-04 17:00:50,828 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:50,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:50,829 INFO L182 omatonBuilderFactory]: Interpolants [20928#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 20929#(and (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20930#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0)), 20931#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20932#(and (<= 0 |main_#t~mem20.offset|) (<= (+ |main_#t~mem20.offset| 8) (select |#length| |main_#t~mem20.base|))), 20933#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 20916#true, 20917#false, 20918#(= (select |#valid| main_~head~0.base) 1), 20919#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 20920#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 20921#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 20922#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20923#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 20924#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 20925#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20926#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20927#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)))] [2018-02-04 17:00:50,829 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:50,829 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 17:00:50,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 17:00:50,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:00:50,830 INFO L87 Difference]: Start difference. First operand 330 states and 383 transitions. Second operand 18 states. [2018-02-04 17:00:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:51,340 INFO L93 Difference]: Finished difference Result 366 states and 411 transitions. [2018-02-04 17:00:51,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 17:00:51,340 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 54 [2018-02-04 17:00:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:51,341 INFO L225 Difference]: With dead ends: 366 [2018-02-04 17:00:51,341 INFO L226 Difference]: Without dead ends: 366 [2018-02-04 17:00:51,341 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=878, Unknown=0, NotChecked=0, Total=1056 [2018-02-04 17:00:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-02-04 17:00:51,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 335. [2018-02-04 17:00:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2018-02-04 17:00:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 391 transitions. [2018-02-04 17:00:51,343 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 391 transitions. Word has length 54 [2018-02-04 17:00:51,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:51,343 INFO L432 AbstractCegarLoop]: Abstraction has 335 states and 391 transitions. [2018-02-04 17:00:51,343 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 17:00:51,343 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 391 transitions. [2018-02-04 17:00:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-02-04 17:00:51,344 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:51,344 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:51,344 INFO L371 AbstractCegarLoop]: === Iteration 48 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:51,344 INFO L82 PathProgramCache]: Analyzing trace with hash 209542896, now seen corresponding path program 1 times [2018-02-04 17:00:51,344 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:51,349 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:51,598 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:51,598 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 17:00:51,598 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:51,598 INFO L182 omatonBuilderFactory]: Interpolants [21665#true, 21666#false, 21667#(= 0 |main_#t~malloc0.offset|), 21668#(= main_~head~0.offset 0), 21669#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 21670#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 21671#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 21672#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 21673#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 21674#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 21675#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 21676#(and (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 21677#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 21678#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~head~0.offset 0)), 21679#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 21680#(and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 21681#(not (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)))), 21682#(or (<= 1 main_~x~0.offset) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (<= (+ main_~x~0.offset 1) 0)), 21683#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= 0 |main_#t~mem21|))), 21684#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0))] [2018-02-04 17:00:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:51,599 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-04 17:00:51,599 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-04 17:00:51,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2018-02-04 17:00:51,599 INFO L87 Difference]: Start difference. First operand 335 states and 391 transitions. Second operand 20 states. [2018-02-04 17:00:52,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:52,097 INFO L93 Difference]: Finished difference Result 347 states and 394 transitions. [2018-02-04 17:00:52,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-04 17:00:52,098 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 56 [2018-02-04 17:00:52,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:52,099 INFO L225 Difference]: With dead ends: 347 [2018-02-04 17:00:52,099 INFO L226 Difference]: Without dead ends: 346 [2018-02-04 17:00:52,099 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=1343, Unknown=0, NotChecked=0, Total=1640 [2018-02-04 17:00:52,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-02-04 17:00:52,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 334. [2018-02-04 17:00:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-02-04 17:00:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 389 transitions. [2018-02-04 17:00:52,103 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 389 transitions. Word has length 56 [2018-02-04 17:00:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:52,103 INFO L432 AbstractCegarLoop]: Abstraction has 334 states and 389 transitions. [2018-02-04 17:00:52,103 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-04 17:00:52,103 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 389 transitions. [2018-02-04 17:00:52,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-02-04 17:00:52,104 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:52,104 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:52,104 INFO L371 AbstractCegarLoop]: === Iteration 49 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:52,104 INFO L82 PathProgramCache]: Analyzing trace with hash 209592548, now seen corresponding path program 1 times [2018-02-04 17:00:52,105 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:52,111 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:00:52,202 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:52,203 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-02-04 17:00:52,203 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:52,203 INFO L182 omatonBuilderFactory]: Interpolants [22416#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 22417#(= 0 |main_#t~mem20.offset|), 22418#(= 0 main_~x~0.offset), 22419#(= main_~head~0.offset 0), 22408#true, 22409#false, 22410#(= (select |#valid| main_~head~0.base) 1), 22411#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 22412#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 22413#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 22414#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 22415#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)))] [2018-02-04 17:00:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:00:52,203 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 17:00:52,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 17:00:52,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-04 17:00:52,203 INFO L87 Difference]: Start difference. First operand 334 states and 389 transitions. Second operand 12 states. [2018-02-04 17:00:52,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:52,476 INFO L93 Difference]: Finished difference Result 350 states and 396 transitions. [2018-02-04 17:00:52,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-02-04 17:00:52,477 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-02-04 17:00:52,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:52,477 INFO L225 Difference]: With dead ends: 350 [2018-02-04 17:00:52,478 INFO L226 Difference]: Without dead ends: 350 [2018-02-04 17:00:52,478 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-02-04 17:00:52,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2018-02-04 17:00:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 282. [2018-02-04 17:00:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-02-04 17:00:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 323 transitions. [2018-02-04 17:00:52,480 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 323 transitions. Word has length 56 [2018-02-04 17:00:52,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:52,480 INFO L432 AbstractCegarLoop]: Abstraction has 282 states and 323 transitions. [2018-02-04 17:00:52,480 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 17:00:52,480 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 323 transitions. [2018-02-04 17:00:52,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-02-04 17:00:52,480 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:52,480 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:52,480 INFO L371 AbstractCegarLoop]: === Iteration 50 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:52,480 INFO L82 PathProgramCache]: Analyzing trace with hash -409516024, now seen corresponding path program 1 times [2018-02-04 17:00:52,481 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:52,485 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:52,687 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:52,687 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:52,687 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-02-04 17:00:52,687 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:52,688 INFO L182 omatonBuilderFactory]: Interpolants [23072#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 23073#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 23074#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 23075#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 23076#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 23077#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 23078#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 23079#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 23080#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 23081#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 23082#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 23083#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 23084#(and (<= 0 |main_#t~mem15.offset|) (<= (+ |main_#t~mem15.offset| 8) (select |#length| |main_#t~mem15.base|))), 23068#true, 23069#false, 23070#(= (select |#valid| main_~head~0.base) 1), 23071#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:00:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:52,688 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 17:00:52,688 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 17:00:52,688 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-02-04 17:00:52,688 INFO L87 Difference]: Start difference. First operand 282 states and 323 transitions. Second operand 17 states. [2018-02-04 17:00:53,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:53,290 INFO L93 Difference]: Finished difference Result 348 states and 394 transitions. [2018-02-04 17:00:53,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 17:00:53,290 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2018-02-04 17:00:53,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:53,291 INFO L225 Difference]: With dead ends: 348 [2018-02-04 17:00:53,291 INFO L226 Difference]: Without dead ends: 348 [2018-02-04 17:00:53,291 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=781, Unknown=0, NotChecked=0, Total=930 [2018-02-04 17:00:53,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-02-04 17:00:53,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 309. [2018-02-04 17:00:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-02-04 17:00:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 353 transitions. [2018-02-04 17:00:53,293 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 353 transitions. Word has length 56 [2018-02-04 17:00:53,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:53,294 INFO L432 AbstractCegarLoop]: Abstraction has 309 states and 353 transitions. [2018-02-04 17:00:53,294 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 17:00:53,294 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 353 transitions. [2018-02-04 17:00:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-02-04 17:00:53,294 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:53,294 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:53,294 INFO L371 AbstractCegarLoop]: === Iteration 51 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:53,294 INFO L82 PathProgramCache]: Analyzing trace with hash 560689923, now seen corresponding path program 2 times [2018-02-04 17:00:53,295 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:53,300 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:53,579 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:53,580 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:53,580 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-02-04 17:00:53,580 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:53,580 INFO L182 omatonBuilderFactory]: Interpolants [23776#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 8 (select |#length| |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 23777#(and (= 8 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 23778#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 23779#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 23780#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 23781#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 23782#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 23783#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 23784#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 23785#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0)), 23786#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 23787#(and (= 8 (select |#length| |main_#t~mem20.base|)) (<= 0 |main_#t~mem20.offset|)), 23788#(and (= (select |#length| main_~x~0.base) 8) (<= 0 main_~x~0.offset)), 23789#(and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)), 23770#true, 23771#false, 23772#(= (select |#valid| main_~head~0.base) 1), 23773#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 23774#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 23775#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:00:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:53,580 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-04 17:00:53,580 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-04 17:00:53,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2018-02-04 17:00:53,581 INFO L87 Difference]: Start difference. First operand 309 states and 353 transitions. Second operand 20 states. [2018-02-04 17:00:54,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:54,257 INFO L93 Difference]: Finished difference Result 401 states and 458 transitions. [2018-02-04 17:00:54,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-04 17:00:54,258 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 56 [2018-02-04 17:00:54,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:54,258 INFO L225 Difference]: With dead ends: 401 [2018-02-04 17:00:54,258 INFO L226 Difference]: Without dead ends: 401 [2018-02-04 17:00:54,259 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1183, Unknown=0, NotChecked=0, Total=1482 [2018-02-04 17:00:54,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-02-04 17:00:54,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 340. [2018-02-04 17:00:54,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-02-04 17:00:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 397 transitions. [2018-02-04 17:00:54,261 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 397 transitions. Word has length 56 [2018-02-04 17:00:54,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:54,262 INFO L432 AbstractCegarLoop]: Abstraction has 340 states and 397 transitions. [2018-02-04 17:00:54,262 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-04 17:00:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 397 transitions. [2018-02-04 17:00:54,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-04 17:00:54,263 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:54,263 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:54,263 INFO L371 AbstractCegarLoop]: === Iteration 52 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:54,263 INFO L82 PathProgramCache]: Analyzing trace with hash 887431852, now seen corresponding path program 1 times [2018-02-04 17:00:54,263 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:54,268 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:54,452 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:54,452 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-02-04 17:00:54,453 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:54,453 INFO L182 omatonBuilderFactory]: Interpolants [24576#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 24577#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 24578#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 24579#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 24580#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 24581#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 24582#(and (<= 0 |main_#t~mem15.offset|) (<= |main_#t~mem15.offset| 0) (= (select |#length| |main_#t~mem15.base|) 8)), 24569#true, 24570#false, 24571#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 24572#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 24573#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 24574#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 24575#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))))] [2018-02-04 17:00:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:54,453 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 17:00:54,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 17:00:54,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-02-04 17:00:54,453 INFO L87 Difference]: Start difference. First operand 340 states and 397 transitions. Second operand 14 states. [2018-02-04 17:00:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:55,021 INFO L93 Difference]: Finished difference Result 382 states and 439 transitions. [2018-02-04 17:00:55,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 17:00:55,022 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2018-02-04 17:00:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:55,022 INFO L225 Difference]: With dead ends: 382 [2018-02-04 17:00:55,022 INFO L226 Difference]: Without dead ends: 382 [2018-02-04 17:00:55,023 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:00:55,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-02-04 17:00:55,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 313. [2018-02-04 17:00:55,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2018-02-04 17:00:55,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 366 transitions. [2018-02-04 17:00:55,024 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 366 transitions. Word has length 58 [2018-02-04 17:00:55,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:55,025 INFO L432 AbstractCegarLoop]: Abstraction has 313 states and 366 transitions. [2018-02-04 17:00:55,025 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 17:00:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 366 transitions. [2018-02-04 17:00:55,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-04 17:00:55,025 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:55,025 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:55,025 INFO L371 AbstractCegarLoop]: === Iteration 53 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:55,026 INFO L82 PathProgramCache]: Analyzing trace with hash -445019962, now seen corresponding path program 1 times [2018-02-04 17:00:55,026 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:55,031 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:55,382 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:55,382 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 17:00:55,382 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:55,383 INFO L182 omatonBuilderFactory]: Interpolants [25312#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 25313#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 25314#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 25315#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 25316#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 25317#(and (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 25318#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0) |main_#t~mem20.base|)) (or (not (= 0 |main_#t~mem20.base|)) (not (= 0 |main_#t~mem20.offset|))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 25319#(and (or (not (= 0 main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base)))), 25320#(and (or (not (= 0 main_~head~0.offset)) (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 25321#(and (or (not (= 0 main_~head~0.offset)) (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem22.base|))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 25322#(and (or (not (= 0 main_~head~0.offset)) (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 25323#(= 1 (select |#valid| main_~x~0.base)), 25302#true, 25303#false, 25304#(= 1 (select |#valid| main_~head~0.base)), 25305#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 25306#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 25307#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 25308#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem6.offset|)), 25309#(and (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 25310#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 25311#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:00:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:55,383 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 17:00:55,383 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 17:00:55,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:00:55,384 INFO L87 Difference]: Start difference. First operand 313 states and 366 transitions. Second operand 22 states. [2018-02-04 17:00:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:56,088 INFO L93 Difference]: Finished difference Result 384 states and 443 transitions. [2018-02-04 17:00:56,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 17:00:56,088 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 58 [2018-02-04 17:00:56,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:56,089 INFO L225 Difference]: With dead ends: 384 [2018-02-04 17:00:56,089 INFO L226 Difference]: Without dead ends: 384 [2018-02-04 17:00:56,089 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=1719, Unknown=0, NotChecked=0, Total=1980 [2018-02-04 17:00:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-02-04 17:00:56,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 370. [2018-02-04 17:00:56,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2018-02-04 17:00:56,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 437 transitions. [2018-02-04 17:00:56,092 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 437 transitions. Word has length 58 [2018-02-04 17:00:56,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:56,092 INFO L432 AbstractCegarLoop]: Abstraction has 370 states and 437 transitions. [2018-02-04 17:00:56,092 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 17:00:56,092 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 437 transitions. [2018-02-04 17:00:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-04 17:00:56,092 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:56,092 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:56,092 INFO L371 AbstractCegarLoop]: === Iteration 54 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:56,092 INFO L82 PathProgramCache]: Analyzing trace with hash -445019961, now seen corresponding path program 1 times [2018-02-04 17:00:56,093 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:56,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:56,571 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:56,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-04 17:00:56,571 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:56,572 INFO L182 omatonBuilderFactory]: Interpolants [26124#true, 26125#false, 26126#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 26127#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base))), 26128#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1)), 26129#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 26130#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 26131#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 26132#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|)), 26133#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 26134#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 26135#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 26136#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 26137#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 26138#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (= |main_#t~mem13.offset| 0) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))))) (or (not (= |main_#t~mem13.offset| 0)) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))))), 26139#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 26140#(or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.base|) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))))), 26141#(or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (or (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select |#length| main_~x~0.base) 8))) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (or (= (select |#length| main_~x~0.base) 8) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))))), 26142#(or (and (or (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 26143#(or (and (<= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (or (<= (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 8) (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|) (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0))))) (not (= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0)))), 26144#(or (not (= 0 main_~x~0.offset)) (and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 26145#(or (not (= 0 main_~head~0.offset)) (and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 26146#(or (not (= 0 main_~head~0.offset)) (and (<= 0 |main_#t~mem22.offset|) (<= (+ |main_#t~mem22.offset| 8) (select |#length| |main_#t~mem22.base|)))), 26147#(or (not (= 0 main_~head~0.offset)) (and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))), 26148#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-02-04 17:00:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:56,572 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 17:00:56,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 17:00:56,573 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2018-02-04 17:00:56,573 INFO L87 Difference]: Start difference. First operand 370 states and 437 transitions. Second operand 25 states. [2018-02-04 17:00:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:57,709 INFO L93 Difference]: Finished difference Result 397 states and 454 transitions. [2018-02-04 17:00:57,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 17:00:57,710 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 58 [2018-02-04 17:00:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:57,710 INFO L225 Difference]: With dead ends: 397 [2018-02-04 17:00:57,710 INFO L226 Difference]: Without dead ends: 397 [2018-02-04 17:00:57,711 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=440, Invalid=2422, Unknown=0, NotChecked=0, Total=2862 [2018-02-04 17:00:57,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-02-04 17:00:57,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 370. [2018-02-04 17:00:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2018-02-04 17:00:57,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 437 transitions. [2018-02-04 17:00:57,713 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 437 transitions. Word has length 58 [2018-02-04 17:00:57,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:57,713 INFO L432 AbstractCegarLoop]: Abstraction has 370 states and 437 transitions. [2018-02-04 17:00:57,713 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 17:00:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 437 transitions. [2018-02-04 17:00:57,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-04 17:00:57,714 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:57,714 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:57,714 INFO L371 AbstractCegarLoop]: === Iteration 55 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:57,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1952109060, now seen corresponding path program 2 times [2018-02-04 17:00:57,714 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:57,725 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:58,218 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:58,218 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:58,218 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 17:00:58,218 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:58,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:58,219 INFO L182 omatonBuilderFactory]: Interpolants [26974#true, 26975#false, 26976#(= 0 |main_#t~malloc0.offset|), 26977#(= main_~head~0.offset 0), 26978#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 26979#(and (= main_~head~0.offset main_~x~0.offset) (= 1 main_~state~0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 26980#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= 1 main_~state~0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 26981#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 1 main_~state~0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 26982#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 1 main_~state~0) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 26983#(and (= 1 (select |#valid| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (or (= 1 main_~state~0) (not (= main_~head~0.offset main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 26984#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= 1 main_~state~0) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 26985#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 26986#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= |main_#t~malloc4.base| main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 26987#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 26988#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (not (= |main_#t~mem6.base| main_~head~0.base)) (= main_~head~0.offset 0)), 26989#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 1 (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))), 26990#(and (= 1 (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 26991#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 26992#(and (= 1 (select (select |#memory_int| |main_#t~mem11.base|) (+ main_~head~0.offset 4))) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 26993#(or (and (or (not (= 1 (select |#valid| main_~x~0.base))) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0)) (= 0 (select |#valid| main_~x~0.base))), 26994#(and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 26995#(not (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)))), 26996#(or (<= 1 main_~x~0.offset) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (<= (+ main_~x~0.offset 1) 0)), 26997#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= 0 |main_#t~mem21|))), 26998#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0))] [2018-02-04 17:00:58,219 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:58,219 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 17:00:58,219 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 17:00:58,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2018-02-04 17:00:58,219 INFO L87 Difference]: Start difference. First operand 370 states and 437 transitions. Second operand 25 states. [2018-02-04 17:00:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:59,214 INFO L93 Difference]: Finished difference Result 509 states and 595 transitions. [2018-02-04 17:00:59,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 17:00:59,214 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 58 [2018-02-04 17:00:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:59,215 INFO L225 Difference]: With dead ends: 509 [2018-02-04 17:00:59,215 INFO L226 Difference]: Without dead ends: 508 [2018-02-04 17:00:59,215 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=496, Invalid=2366, Unknown=0, NotChecked=0, Total=2862 [2018-02-04 17:00:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2018-02-04 17:00:59,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 419. [2018-02-04 17:00:59,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2018-02-04 17:00:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 500 transitions. [2018-02-04 17:00:59,218 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 500 transitions. Word has length 58 [2018-02-04 17:00:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:59,218 INFO L432 AbstractCegarLoop]: Abstraction has 419 states and 500 transitions. [2018-02-04 17:00:59,218 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 17:00:59,218 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 500 transitions. [2018-02-04 17:00:59,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-04 17:00:59,219 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:59,219 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:59,219 INFO L371 AbstractCegarLoop]: === Iteration 56 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:59,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1952158712, now seen corresponding path program 1 times [2018-02-04 17:00:59,219 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:59,235 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:59,379 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:59,379 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:59,379 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-04 17:00:59,380 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:59,380 INFO L182 omatonBuilderFactory]: Interpolants [28000#(= main_~head~0.offset 0), 27985#true, 27986#false, 27987#(= (select |#valid| main_~head~0.base) 1), 27988#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 27989#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 27990#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 27991#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 27992#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 27993#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 27994#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 27995#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 27996#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 27997#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 27998#(= 0 |main_#t~mem20.offset|), 27999#(= 0 main_~x~0.offset)] [2018-02-04 17:00:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:59,380 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-04 17:00:59,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-04 17:00:59,380 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-02-04 17:00:59,380 INFO L87 Difference]: Start difference. First operand 419 states and 500 transitions. Second operand 16 states. [2018-02-04 17:00:59,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:00:59,762 INFO L93 Difference]: Finished difference Result 437 states and 510 transitions. [2018-02-04 17:00:59,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 17:00:59,762 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 58 [2018-02-04 17:00:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:00:59,763 INFO L225 Difference]: With dead ends: 437 [2018-02-04 17:00:59,763 INFO L226 Difference]: Without dead ends: 437 [2018-02-04 17:00:59,763 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2018-02-04 17:00:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2018-02-04 17:00:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 395. [2018-02-04 17:00:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2018-02-04 17:00:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 464 transitions. [2018-02-04 17:00:59,767 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 464 transitions. Word has length 58 [2018-02-04 17:00:59,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:00:59,767 INFO L432 AbstractCegarLoop]: Abstraction has 395 states and 464 transitions. [2018-02-04 17:00:59,767 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-04 17:00:59,768 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 464 transitions. [2018-02-04 17:00:59,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-04 17:00:59,768 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:00:59,768 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:00:59,768 INFO L371 AbstractCegarLoop]: === Iteration 57 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:00:59,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1333050140, now seen corresponding path program 2 times [2018-02-04 17:00:59,769 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:00:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:00:59,778 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:00:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:59,982 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:00:59,982 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 17:00:59,982 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:00:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:59,983 INFO L182 omatonBuilderFactory]: Interpolants [28864#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|)), 28865#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 28866#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))), 28867#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 28868#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 28869#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)), 28870#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 28871#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 28872#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 28873#(and (<= 0 |main_#t~mem15.offset|) (<= (+ |main_#t~mem15.offset| 8) (select |#length| |main_#t~mem15.base|))), 28855#true, 28856#false, 28857#(= (select |#valid| main_~head~0.base) 1), 28858#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 28859#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 28860#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 28861#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 28862#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 28863#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:00:59,983 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:00:59,983 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 17:00:59,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 17:00:59,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:00:59,983 INFO L87 Difference]: Start difference. First operand 395 states and 464 transitions. Second operand 19 states. [2018-02-04 17:01:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:00,562 INFO L93 Difference]: Finished difference Result 460 states and 531 transitions. [2018-02-04 17:01:00,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-04 17:01:00,562 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 58 [2018-02-04 17:01:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:00,563 INFO L225 Difference]: With dead ends: 460 [2018-02-04 17:01:00,563 INFO L226 Difference]: Without dead ends: 460 [2018-02-04 17:01:00,563 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=893, Unknown=0, NotChecked=0, Total=1056 [2018-02-04 17:01:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2018-02-04 17:01:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 400. [2018-02-04 17:01:00,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2018-02-04 17:01:00,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 469 transitions. [2018-02-04 17:01:00,565 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 469 transitions. Word has length 58 [2018-02-04 17:01:00,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:00,565 INFO L432 AbstractCegarLoop]: Abstraction has 400 states and 469 transitions. [2018-02-04 17:01:00,565 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 17:01:00,566 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 469 transitions. [2018-02-04 17:01:00,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-02-04 17:01:00,566 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:00,566 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:00,566 INFO L371 AbstractCegarLoop]: === Iteration 58 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:00,566 INFO L82 PathProgramCache]: Analyzing trace with hash -722212438, now seen corresponding path program 1 times [2018-02-04 17:01:00,566 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:00,572 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:01,026 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:01,026 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 17:01:01,026 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:01,027 INFO L182 omatonBuilderFactory]: Interpolants [29762#true, 29763#false, 29764#(= 0 |main_#t~malloc0.offset|), 29765#(= main_~head~0.offset 0), 29766#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 29767#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 29768#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 29769#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 29770#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 29771#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 29772#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 29773#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~state~0 0)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 29774#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~state~0 0)) (= 1 (select |#valid| main_~head~0.base)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 29775#(and (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 29776#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0)), 29777#(and (not (= main_~state~0 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (= main_~head~0.offset 0)), 29778#(and (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 29779#(and (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 29780#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 29781#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| |main_#t~mem11.base|) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 29782#(and (or (not (= 1 (select |#valid| main_~x~0.base))) (and (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 4)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 29783#(not (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)) 0)), 29784#(or (<= 1 main_~x~0.offset) (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (<= (+ main_~x~0.offset 1) 0)), 29785#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= |main_#t~mem21| 0))), 29786#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0))] [2018-02-04 17:01:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:01,027 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 17:01:01,027 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 17:01:01,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2018-02-04 17:01:01,027 INFO L87 Difference]: Start difference. First operand 400 states and 469 transitions. Second operand 25 states. [2018-02-04 17:01:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:02,252 INFO L93 Difference]: Finished difference Result 521 states and 607 transitions. [2018-02-04 17:01:02,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 17:01:02,252 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 59 [2018-02-04 17:01:02,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:02,253 INFO L225 Difference]: With dead ends: 521 [2018-02-04 17:01:02,253 INFO L226 Difference]: Without dead ends: 520 [2018-02-04 17:01:02,253 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=500, Invalid=2362, Unknown=0, NotChecked=0, Total=2862 [2018-02-04 17:01:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2018-02-04 17:01:02,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 393. [2018-02-04 17:01:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2018-02-04 17:01:02,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 461 transitions. [2018-02-04 17:01:02,256 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 461 transitions. Word has length 59 [2018-02-04 17:01:02,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:02,256 INFO L432 AbstractCegarLoop]: Abstraction has 393 states and 461 transitions. [2018-02-04 17:01:02,256 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 17:01:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 461 transitions. [2018-02-04 17:01:02,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-02-04 17:01:02,257 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:02,257 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:02,257 INFO L371 AbstractCegarLoop]: === Iteration 59 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash 780080836, now seen corresponding path program 2 times [2018-02-04 17:01:02,257 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:02,264 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:02,571 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:02,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-04 17:01:02,571 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:02,571 INFO L182 omatonBuilderFactory]: Interpolants [30759#true, 30760#false, 30761#(= (select |#valid| main_~head~0.base) 1), 30762#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 30763#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 30764#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 30765#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 30766#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 30767#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 30768#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 30769#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 30770#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 30771#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 30772#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 30773#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 30774#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 30775#(and (<= 0 |main_#t~mem19.offset|) (<= (+ |main_#t~mem19.offset| 8) (select |#length| |main_#t~mem19.base|))), 30776#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-02-04 17:01:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:02,572 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 17:01:02,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 17:01:02,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:01:02,572 INFO L87 Difference]: Start difference. First operand 393 states and 461 transitions. Second operand 18 states. [2018-02-04 17:01:03,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:03,311 INFO L93 Difference]: Finished difference Result 425 states and 487 transitions. [2018-02-04 17:01:03,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-04 17:01:03,311 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2018-02-04 17:01:03,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:03,312 INFO L225 Difference]: With dead ends: 425 [2018-02-04 17:01:03,312 INFO L226 Difference]: Without dead ends: 425 [2018-02-04 17:01:03,313 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=1012, Unknown=0, NotChecked=0, Total=1190 [2018-02-04 17:01:03,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2018-02-04 17:01:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 409. [2018-02-04 17:01:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-02-04 17:01:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 482 transitions. [2018-02-04 17:01:03,315 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 482 transitions. Word has length 59 [2018-02-04 17:01:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:03,315 INFO L432 AbstractCegarLoop]: Abstraction has 409 states and 482 transitions. [2018-02-04 17:01:03,315 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 17:01:03,315 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 482 transitions. [2018-02-04 17:01:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-04 17:01:03,315 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:03,315 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:03,316 INFO L371 AbstractCegarLoop]: === Iteration 60 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:03,316 INFO L82 PathProgramCache]: Analyzing trace with hash 381373034, now seen corresponding path program 1 times [2018-02-04 17:01:03,316 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:03,322 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:01:03,674 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:03,674 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:01:03,674 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:03,674 INFO L182 omatonBuilderFactory]: Interpolants [31648#(= main_~head~0.offset 0), 31649#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 31650#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 31651#(and (= main_~head~0.base |main_#t~mem11.base|) (= main_~head~0.offset |main_#t~mem11.offset|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) |main_#t~mem11.offset|)) |main_#t~mem11.base|)), 31652#(and (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.base main_~x~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 31653#(and (= main_~head~0.offset main_~x~0.offset) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~head~0.base main_~x~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 31654#(and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.base main_~x~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 31655#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem19.offset|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base |main_#t~mem19.base|) (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~mem19.offset|)) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 31656#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (+ |main_#t~mem13.offset| 4)))) (= main_~head~0.offset 0)), 31657#(and (not (= 0 |main_#t~mem14|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 31658#(and (not |main_#t~short18|) (= main_~head~0.offset 0)), 31645#true, 31646#false, 31647#(= 0 |main_#t~malloc0.offset|)] [2018-02-04 17:01:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:01:03,674 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 17:01:03,674 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 17:01:03,674 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-02-04 17:01:03,675 INFO L87 Difference]: Start difference. First operand 409 states and 482 transitions. Second operand 14 states. [2018-02-04 17:01:03,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:03,962 INFO L93 Difference]: Finished difference Result 407 states and 466 transitions. [2018-02-04 17:01:03,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 17:01:03,962 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2018-02-04 17:01:03,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:03,963 INFO L225 Difference]: With dead ends: 407 [2018-02-04 17:01:03,963 INFO L226 Difference]: Without dead ends: 407 [2018-02-04 17:01:03,963 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:01:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2018-02-04 17:01:03,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 399. [2018-02-04 17:01:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2018-02-04 17:01:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 466 transitions. [2018-02-04 17:01:03,965 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 466 transitions. Word has length 60 [2018-02-04 17:01:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:03,965 INFO L432 AbstractCegarLoop]: Abstraction has 399 states and 466 transitions. [2018-02-04 17:01:03,965 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 17:01:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 466 transitions. [2018-02-04 17:01:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-04 17:01:03,965 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:03,965 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:03,966 INFO L371 AbstractCegarLoop]: === Iteration 61 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:03,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1832550675, now seen corresponding path program 1 times [2018-02-04 17:01:03,966 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:03,970 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:04,310 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:04,310 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 17:01:04,310 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:04,310 INFO L182 omatonBuilderFactory]: Interpolants [32489#true, 32490#false, 32491#(= 0 |main_#t~malloc0.offset|), 32492#(= 0 main_~head~0.offset), 32493#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 32494#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 32495#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 32496#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 32497#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|)), 32498#(and (= 0 main_~head~0.offset) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 32499#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 32500#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)), 32501#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|)), 32502#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))), 32503#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (= |main_#t~mem13.offset| 0) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))))), 32504#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 32505#(or (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 32506#(or (not (= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0))) (and (<= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (<= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 0))), 32507#(or (not (= 0 main_~x~0.offset)) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 32508#(or (not (= 0 main_~head~0.offset)) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 32509#(or (not (= 0 main_~head~0.offset)) (and (<= 0 |main_#t~mem22.offset|) (<= |main_#t~mem22.offset| 0))), 32510#(or (and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)) (not (= 0 main_~head~0.offset))), 32511#(and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset))] [2018-02-04 17:01:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:04,310 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 17:01:04,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 17:01:04,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2018-02-04 17:01:04,311 INFO L87 Difference]: Start difference. First operand 399 states and 466 transitions. Second operand 23 states. [2018-02-04 17:01:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:04,994 INFO L93 Difference]: Finished difference Result 410 states and 469 transitions. [2018-02-04 17:01:04,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 17:01:04,994 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 60 [2018-02-04 17:01:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:04,995 INFO L225 Difference]: With dead ends: 410 [2018-02-04 17:01:04,995 INFO L226 Difference]: Without dead ends: 410 [2018-02-04 17:01:04,995 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=354, Invalid=1626, Unknown=0, NotChecked=0, Total=1980 [2018-02-04 17:01:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-02-04 17:01:04,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 395. [2018-02-04 17:01:04,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2018-02-04 17:01:04,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 461 transitions. [2018-02-04 17:01:04,997 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 461 transitions. Word has length 60 [2018-02-04 17:01:04,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:04,997 INFO L432 AbstractCegarLoop]: Abstraction has 395 states and 461 transitions. [2018-02-04 17:01:04,997 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 17:01:04,997 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 461 transitions. [2018-02-04 17:01:04,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-04 17:01:04,997 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:04,998 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:04,998 INFO L371 AbstractCegarLoop]: === Iteration 62 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:04,998 INFO L82 PathProgramCache]: Analyzing trace with hash -876181798, now seen corresponding path program 1 times [2018-02-04 17:01:04,998 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:05,003 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:05,288 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:05,288 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 17:01:05,288 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:05,288 INFO L182 omatonBuilderFactory]: Interpolants [33376#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 33377#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 33378#(and (or (not (= 0 |main_#t~mem20.base|)) (not (= 0 |main_#t~mem20.offset|))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0))) (not (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)))), 33379#(and (or (not (= main_~x~0.offset 0)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))) (or (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base)))), 33380#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset 0))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 33381#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem22.base|)) (not (= main_~head~0.offset 0))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 33382#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)) (not (= main_~head~0.offset 0))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 33383#(= 1 (select |#valid| main_~x~0.base)), 33361#true, 33362#false, 33363#(= (select |#valid| main_~head~0.base) 1), 33364#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 33365#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base)), 33366#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 33367#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 33368#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 33369#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 33370#(and (= 1 (select |#valid| |main_#t~malloc4.base|)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 33371#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33372#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 33373#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)))), 33374#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 33375#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))))] [2018-02-04 17:01:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:05,288 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 17:01:05,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 17:01:05,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2018-02-04 17:01:05,289 INFO L87 Difference]: Start difference. First operand 395 states and 461 transitions. Second operand 23 states. [2018-02-04 17:01:06,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:06,413 INFO L93 Difference]: Finished difference Result 466 states and 536 transitions. [2018-02-04 17:01:06,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-04 17:01:06,414 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 60 [2018-02-04 17:01:06,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:06,415 INFO L225 Difference]: With dead ends: 466 [2018-02-04 17:01:06,415 INFO L226 Difference]: Without dead ends: 466 [2018-02-04 17:01:06,415 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=356, Invalid=2194, Unknown=0, NotChecked=0, Total=2550 [2018-02-04 17:01:06,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2018-02-04 17:01:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 425. [2018-02-04 17:01:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2018-02-04 17:01:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 503 transitions. [2018-02-04 17:01:06,417 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 503 transitions. Word has length 60 [2018-02-04 17:01:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:06,417 INFO L432 AbstractCegarLoop]: Abstraction has 425 states and 503 transitions. [2018-02-04 17:01:06,417 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 17:01:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 503 transitions. [2018-02-04 17:01:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-04 17:01:06,418 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:06,418 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:06,418 INFO L371 AbstractCegarLoop]: === Iteration 63 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:06,418 INFO L82 PathProgramCache]: Analyzing trace with hash -876181797, now seen corresponding path program 1 times [2018-02-04 17:01:06,418 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:06,424 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:06,714 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:06,714 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-02-04 17:01:06,714 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:06,715 INFO L182 omatonBuilderFactory]: Interpolants [34336#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 34337#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 34338#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 34339#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 34340#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 34341#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 34342#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))), 34343#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 34344#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 34345#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0))), 34346#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 34347#(and (= main_~x~0.offset main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 34348#(and (or (= 8 (select |#length| |main_#t~mem22.base|)) (not (= main_~head~0.offset 0))) (or (= 0 |main_#t~mem22.offset|) (not (= main_~head~0.offset 0)))), 34349#(and (or (= (select |#length| main_~x~0.base) 8) (not (= main_~head~0.offset 0))) (or (= main_~x~0.offset 0) (not (= main_~head~0.offset 0)))), 34350#(and (= (select |#length| main_~x~0.base) 8) (= main_~x~0.offset 0)), 34331#true, 34332#false, 34333#(= (select |#valid| main_~head~0.base) 1), 34334#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 34335#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base))] [2018-02-04 17:01:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:06,715 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-04 17:01:06,715 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-04 17:01:06,715 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2018-02-04 17:01:06,715 INFO L87 Difference]: Start difference. First operand 425 states and 503 transitions. Second operand 20 states. [2018-02-04 17:01:07,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:07,370 INFO L93 Difference]: Finished difference Result 463 states and 532 transitions. [2018-02-04 17:01:07,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-04 17:01:07,370 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 60 [2018-02-04 17:01:07,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:07,371 INFO L225 Difference]: With dead ends: 463 [2018-02-04 17:01:07,371 INFO L226 Difference]: Without dead ends: 463 [2018-02-04 17:01:07,371 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=914, Unknown=0, NotChecked=0, Total=1056 [2018-02-04 17:01:07,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2018-02-04 17:01:07,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 427. [2018-02-04 17:01:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2018-02-04 17:01:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 505 transitions. [2018-02-04 17:01:07,374 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 505 transitions. Word has length 60 [2018-02-04 17:01:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:07,374 INFO L432 AbstractCegarLoop]: Abstraction has 427 states and 505 transitions. [2018-02-04 17:01:07,374 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-04 17:01:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 505 transitions. [2018-02-04 17:01:07,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 17:01:07,374 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:07,374 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:07,374 INFO L371 AbstractCegarLoop]: === Iteration 64 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:07,374 INFO L82 PathProgramCache]: Analyzing trace with hash 751984768, now seen corresponding path program 1 times [2018-02-04 17:01:07,375 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:07,381 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:07,921 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:07,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 17:01:07,921 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:07,921 INFO L182 omatonBuilderFactory]: Interpolants [35267#true, 35268#false, 35269#(= 0 |main_#t~malloc0.offset|), 35270#(= main_~head~0.offset 0), 35271#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 35272#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 35273#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 35274#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 35275#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 35276#(and (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 35277#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 35278#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~state~0 0)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 35279#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 35280#(and (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 35281#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0)), 35282#(and (not (= main_~state~0 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (= main_~head~0.offset 0)), 35283#(and (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 35284#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 35285#(and (not (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 35286#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 35287#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| |main_#t~mem11.base|) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 35288#(and (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 4)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 35289#(not (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)) 0)), 35290#(or (<= 1 main_~x~0.offset) (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (<= (+ main_~x~0.offset 1) 0)), 35291#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= |main_#t~mem21| 0))), 35292#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0))] [2018-02-04 17:01:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:07,922 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 17:01:07,922 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 17:01:07,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:01:07,922 INFO L87 Difference]: Start difference. First operand 427 states and 505 transitions. Second operand 26 states. [2018-02-04 17:01:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:08,896 INFO L93 Difference]: Finished difference Result 583 states and 684 transitions. [2018-02-04 17:01:08,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 17:01:08,897 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 61 [2018-02-04 17:01:08,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:08,898 INFO L225 Difference]: With dead ends: 583 [2018-02-04 17:01:08,898 INFO L226 Difference]: Without dead ends: 582 [2018-02-04 17:01:08,898 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=508, Invalid=2462, Unknown=0, NotChecked=0, Total=2970 [2018-02-04 17:01:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2018-02-04 17:01:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 385. [2018-02-04 17:01:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2018-02-04 17:01:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 450 transitions. [2018-02-04 17:01:08,901 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 450 transitions. Word has length 61 [2018-02-04 17:01:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:08,901 INFO L432 AbstractCegarLoop]: Abstraction has 385 states and 450 transitions. [2018-02-04 17:01:08,901 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 17:01:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 450 transitions. [2018-02-04 17:01:08,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 17:01:08,901 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:08,901 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:08,901 INFO L371 AbstractCegarLoop]: === Iteration 65 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:08,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1982120890, now seen corresponding path program 1 times [2018-02-04 17:01:08,902 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:08,909 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:09,258 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:09,258 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 17:01:09,258 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:09,259 INFO L182 omatonBuilderFactory]: Interpolants [36320#false, 36321#(= |main_#t~malloc0.offset| 0), 36322#(= main_~head~0.offset 0), 36323#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 36324#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 36325#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 36326#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 36327#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 36328#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 36329#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 36330#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 36331#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 36332#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 36333#(and (= main_~head~0.offset |main_#t~malloc4.offset|) (or (= |main_#t~malloc4.base| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))))), 36334#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 36335#(and (= main_~head~0.offset |main_#t~mem6.offset|) (or (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 36336#(or (and (or (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 36337#(or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 36338#(or (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 36339#(= 1 (select |#valid| |main_#t~mem11.base|)), 36340#(= (select |#valid| main_~x~0.base) 1), 36319#true] [2018-02-04 17:01:09,259 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:09,259 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 17:01:09,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 17:01:09,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:01:09,259 INFO L87 Difference]: Start difference. First operand 385 states and 450 transitions. Second operand 22 states. [2018-02-04 17:01:10,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:10,532 INFO L93 Difference]: Finished difference Result 494 states and 574 transitions. [2018-02-04 17:01:10,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-02-04 17:01:10,532 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 61 [2018-02-04 17:01:10,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:10,533 INFO L225 Difference]: With dead ends: 494 [2018-02-04 17:01:10,533 INFO L226 Difference]: Without dead ends: 494 [2018-02-04 17:01:10,534 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=621, Invalid=2135, Unknown=0, NotChecked=0, Total=2756 [2018-02-04 17:01:10,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-02-04 17:01:10,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 384. [2018-02-04 17:01:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-02-04 17:01:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 449 transitions. [2018-02-04 17:01:10,536 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 449 transitions. Word has length 61 [2018-02-04 17:01:10,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:10,536 INFO L432 AbstractCegarLoop]: Abstraction has 384 states and 449 transitions. [2018-02-04 17:01:10,536 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 17:01:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 449 transitions. [2018-02-04 17:01:10,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 17:01:10,537 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:10,537 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:10,537 INFO L371 AbstractCegarLoop]: === Iteration 66 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:10,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1982120891, now seen corresponding path program 1 times [2018-02-04 17:01:10,537 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:10,543 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:11,103 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:11,103 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 17:01:11,103 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:11,103 INFO L182 omatonBuilderFactory]: Interpolants [37281#true, 37282#false, 37283#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 37284#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 37285#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 37286#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 37287#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 37288#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 37289#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 37290#(and (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 37291#(and (= (select |#length| main_~x~0.base) 8) (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 37292#(and (= (select |#length| main_~x~0.base) 8) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 37293#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 37294#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 37295#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset |main_#t~malloc4.offset|) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)))), 37296#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 37297#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset |main_#t~mem6.offset|)), 37298#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (or (and (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)))), 37299#(and (or (and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base)) (and (not (= main_~x~0.base main_~head~0.base)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))) (or (and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 37300#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 37301#(and (<= 8 (select |#length| |main_#t~mem11.base|)) (= 0 |main_#t~mem11.offset|)), 37302#(and (<= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-02-04 17:01:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:11,104 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 17:01:11,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 17:01:11,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:01:11,104 INFO L87 Difference]: Start difference. First operand 384 states and 449 transitions. Second operand 22 states. [2018-02-04 17:01:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:12,395 INFO L93 Difference]: Finished difference Result 412 states and 473 transitions. [2018-02-04 17:01:12,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-04 17:01:12,395 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 61 [2018-02-04 17:01:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:12,396 INFO L225 Difference]: With dead ends: 412 [2018-02-04 17:01:12,396 INFO L226 Difference]: Without dead ends: 412 [2018-02-04 17:01:12,396 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=497, Invalid=1573, Unknown=0, NotChecked=0, Total=2070 [2018-02-04 17:01:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2018-02-04 17:01:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 384. [2018-02-04 17:01:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-02-04 17:01:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 448 transitions. [2018-02-04 17:01:12,398 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 448 transitions. Word has length 61 [2018-02-04 17:01:12,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:12,398 INFO L432 AbstractCegarLoop]: Abstraction has 384 states and 448 transitions. [2018-02-04 17:01:12,398 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 17:01:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 448 transitions. [2018-02-04 17:01:12,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 17:01:12,399 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:12,399 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:12,399 INFO L371 AbstractCegarLoop]: === Iteration 67 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:12,399 INFO L82 PathProgramCache]: Analyzing trace with hash 298965808, now seen corresponding path program 3 times [2018-02-04 17:01:12,399 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:12,405 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-02-04 17:01:12,438 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:01:12,438 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 17:01:12,438 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:12,439 INFO L182 omatonBuilderFactory]: Interpolants [38147#true, 38148#false, 38149#(and (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 38150#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 4))), 38151#(and (<= (+ |main_#t~mem19.offset| 8) (select |#length| |main_#t~mem19.base|)) (<= 0 (+ |main_#t~mem19.offset| 4))), 38152#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 (+ main_~x~0.offset 4)))] [2018-02-04 17:01:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-02-04 17:01:12,439 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 17:01:12,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 17:01:12,439 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 17:01:12,439 INFO L87 Difference]: Start difference. First operand 384 states and 448 transitions. Second operand 6 states. [2018-02-04 17:01:12,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:12,536 INFO L93 Difference]: Finished difference Result 383 states and 441 transitions. [2018-02-04 17:01:12,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 17:01:12,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-02-04 17:01:12,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:12,537 INFO L225 Difference]: With dead ends: 383 [2018-02-04 17:01:12,537 INFO L226 Difference]: Without dead ends: 383 [2018-02-04 17:01:12,537 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-02-04 17:01:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-02-04 17:01:12,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 382. [2018-02-04 17:01:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-02-04 17:01:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 440 transitions. [2018-02-04 17:01:12,539 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 440 transitions. Word has length 61 [2018-02-04 17:01:12,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:12,539 INFO L432 AbstractCegarLoop]: Abstraction has 382 states and 440 transitions. [2018-02-04 17:01:12,539 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 17:01:12,539 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 440 transitions. [2018-02-04 17:01:12,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-02-04 17:01:12,539 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:12,539 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:12,539 INFO L371 AbstractCegarLoop]: === Iteration 68 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:12,539 INFO L82 PathProgramCache]: Analyzing trace with hash 144612372, now seen corresponding path program 1 times [2018-02-04 17:01:12,540 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:12,544 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:01:13,165 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:13,165 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 17:01:13,165 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:13,166 INFO L182 omatonBuilderFactory]: Interpolants [38944#(or (not (= 0 main_~head~0.offset)) (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (not (= 0 main_~head~0.base)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|))), 38945#(or (not (= 0 main_~head~0.offset)) (and (= (store (store |#valid| main_~head~0.base 0) |main_#t~mem22.base| 0) |old(#valid)|) (not (= 0 |main_#t~mem22.base|)) (not (= |main_#t~mem22.base| main_~head~0.base)) (not (= 0 main_~head~0.base)))), 38946#(or (not (= 0 main_~head~0.offset)) (and (not (= main_~head~0.base main_~x~0.base)) (not (= 0 main_~x~0.base)) (= (store (store |#valid| main_~head~0.base 0) main_~x~0.base 0) |old(#valid)|) (not (= 0 main_~head~0.base)))), 38947#(and (not (= 0 main_~x~0.base)) (= (store |#valid| main_~x~0.base 0) |old(#valid)|)), 38926#true, 38927#false, 38928#(= |#valid| |old(#valid)|), 38929#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (not (= 0 |main_#t~malloc0.base|))), 38930#(and (not (= 0 main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|)), 38931#(and (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|)), 38932#(and (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 38933#(and (= main_~x~0.offset main_~head~0.offset) (= |old(#valid)| (store (store |#valid| |main_#t~malloc4.base| 0) main_~head~0.base 0)) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 38934#(and (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0) main_~head~0.base 0) |old(#valid)|) (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 38935#(and (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) main_~head~0.base 0) |old(#valid)|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (= 0 |main_#t~mem6.offset|)), 38936#(and (= (store (store |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset) 0) main_~head~0.base 0) |old(#valid)|) (= main_~x~0.offset 0) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 38937#(and (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 38938#(and (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0) |old(#valid)|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 38939#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0) |old(#valid)|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 38940#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0) |old(#valid)|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 38941#(and (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0) |old(#valid)|) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 38942#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0) |main_#t~mem20.base|)) (= (store (store |#valid| |main_#t~mem20.base| 0) (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0) 0) |old(#valid)|) (or (not (= 0 |main_#t~mem20.base|)) (not (= 0 |main_#t~mem20.offset|))) (not (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)))), 38943#(or (not (= 0 main_~x~0.offset)) (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~x~0.base)) (= (store (store |#valid| main_~x~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))))] [2018-02-04 17:01:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:01:13,166 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 17:01:13,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 17:01:13,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:01:13,166 INFO L87 Difference]: Start difference. First operand 382 states and 440 transitions. Second operand 22 states. [2018-02-04 17:01:14,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:14,205 INFO L93 Difference]: Finished difference Result 415 states and 462 transitions. [2018-02-04 17:01:14,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-04 17:01:14,205 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 62 [2018-02-04 17:01:14,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:14,206 INFO L225 Difference]: With dead ends: 415 [2018-02-04 17:01:14,206 INFO L226 Difference]: Without dead ends: 412 [2018-02-04 17:01:14,206 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=179, Invalid=1627, Unknown=0, NotChecked=0, Total=1806 [2018-02-04 17:01:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2018-02-04 17:01:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 385. [2018-02-04 17:01:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2018-02-04 17:01:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 443 transitions. [2018-02-04 17:01:14,208 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 443 transitions. Word has length 62 [2018-02-04 17:01:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:14,208 INFO L432 AbstractCegarLoop]: Abstraction has 385 states and 443 transitions. [2018-02-04 17:01:14,208 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 17:01:14,208 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 443 transitions. [2018-02-04 17:01:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-04 17:01:14,209 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:14,209 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:14,209 INFO L371 AbstractCegarLoop]: === Iteration 69 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:14,209 INFO L82 PathProgramCache]: Analyzing trace with hash 400894122, now seen corresponding path program 2 times [2018-02-04 17:01:14,209 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:14,214 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:14,485 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:14,485 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-02-04 17:01:14,485 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:14,485 INFO L182 omatonBuilderFactory]: Interpolants [39790#true, 39791#false, 39792#(= (select |#valid| main_~head~0.base) 1), 39793#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 39794#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 39795#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 39796#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 39797#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 39798#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 39799#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 39800#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 39801#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 39802#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 39803#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 39804#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 39805#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 39806#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:01:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:14,486 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 17:01:14,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 17:01:14,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-02-04 17:01:14,486 INFO L87 Difference]: Start difference. First operand 385 states and 443 transitions. Second operand 17 states. [2018-02-04 17:01:15,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:15,035 INFO L93 Difference]: Finished difference Result 399 states and 448 transitions. [2018-02-04 17:01:15,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-04 17:01:15,036 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 63 [2018-02-04 17:01:15,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:15,036 INFO L225 Difference]: With dead ends: 399 [2018-02-04 17:01:15,036 INFO L226 Difference]: Without dead ends: 399 [2018-02-04 17:01:15,036 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=1040, Unknown=0, NotChecked=0, Total=1260 [2018-02-04 17:01:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-02-04 17:01:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 385. [2018-02-04 17:01:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2018-02-04 17:01:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 442 transitions. [2018-02-04 17:01:15,038 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 442 transitions. Word has length 63 [2018-02-04 17:01:15,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:15,039 INFO L432 AbstractCegarLoop]: Abstraction has 385 states and 442 transitions. [2018-02-04 17:01:15,039 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 17:01:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 442 transitions. [2018-02-04 17:01:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-04 17:01:15,039 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:15,039 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:15,039 INFO L371 AbstractCegarLoop]: === Iteration 70 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:15,039 INFO L82 PathProgramCache]: Analyzing trace with hash 400894123, now seen corresponding path program 2 times [2018-02-04 17:01:15,040 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:15,044 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:15,295 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:15,295 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 17:01:15,295 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:15,296 INFO L182 omatonBuilderFactory]: Interpolants [40640#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 40641#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 40642#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 40643#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= |main_#t~mem19.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 40644#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 40645#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 40646#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (<= 8 (select |#length| main_~x~0.base))), 40647#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 40648#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 40649#(and (= |main_#t~mem13.offset| 0) (<= 8 (select |#length| |main_#t~mem13.base|))), 40629#true, 40630#false, 40631#(= 0 |main_#t~malloc0.offset|), 40632#(= 0 main_~head~0.offset), 40633#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 40634#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 40635#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 40636#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 40637#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 40638#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 40639#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-02-04 17:01:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:15,296 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 17:01:15,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 17:01:15,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2018-02-04 17:01:15,296 INFO L87 Difference]: Start difference. First operand 385 states and 442 transitions. Second operand 21 states. [2018-02-04 17:01:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:16,055 INFO L93 Difference]: Finished difference Result 398 states and 447 transitions. [2018-02-04 17:01:16,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-04 17:01:16,055 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 63 [2018-02-04 17:01:16,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:16,056 INFO L225 Difference]: With dead ends: 398 [2018-02-04 17:01:16,056 INFO L226 Difference]: Without dead ends: 398 [2018-02-04 17:01:16,056 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=1233, Unknown=0, NotChecked=0, Total=1482 [2018-02-04 17:01:16,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2018-02-04 17:01:16,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 385. [2018-02-04 17:01:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2018-02-04 17:01:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 441 transitions. [2018-02-04 17:01:16,059 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 441 transitions. Word has length 63 [2018-02-04 17:01:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:16,059 INFO L432 AbstractCegarLoop]: Abstraction has 385 states and 441 transitions. [2018-02-04 17:01:16,059 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 17:01:16,059 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 441 transitions. [2018-02-04 17:01:16,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-02-04 17:01:16,059 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:16,059 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:16,059 INFO L371 AbstractCegarLoop]: === Iteration 71 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:16,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1581255914, now seen corresponding path program 2 times [2018-02-04 17:01:16,060 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:16,065 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:01:16,471 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:16,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 17:01:16,471 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:16,471 INFO L182 omatonBuilderFactory]: Interpolants [41472#(= main_~head~0.offset 0), 41473#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.offset 0)), 41474#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 41475#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem13.offset|) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (not (= |main_#t~mem13.offset| 0)) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)))), 41476#(or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)) |main_#t~mem14|)) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)))), 41477#(or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4))) (not |main_#t~short18|)) (= main_~head~0.offset 0))), 41478#(or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)))), 41479#(or (and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))), 41480#(or (not (= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 0)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 4)))), 41481#(or (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))), 41482#(or (not (= |main_#t~mem22.offset| 0)) (= 0 (select (select |#memory_int| |main_#t~mem22.base|) (+ 0 4)))), 41483#(or (not (= main_~x~0.offset 0)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))), 41484#(or (not (= main_~x~0.offset 0)) (= 0 |main_#t~mem21|)), 41485#(or (<= (+ main_~x~0.offset 1) 0) (not (= main_~head~0.offset 0))), 41486#(not (= main_~head~0.offset 0)), 41469#true, 41470#false, 41471#(= 0 |main_#t~malloc0.offset|)] [2018-02-04 17:01:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:01:16,472 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 17:01:16,472 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 17:01:16,472 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:01:16,472 INFO L87 Difference]: Start difference. First operand 385 states and 441 transitions. Second operand 18 states. [2018-02-04 17:01:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:17,116 INFO L93 Difference]: Finished difference Result 543 states and 620 transitions. [2018-02-04 17:01:17,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-04 17:01:17,116 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 64 [2018-02-04 17:01:17,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:17,117 INFO L225 Difference]: With dead ends: 543 [2018-02-04 17:01:17,117 INFO L226 Difference]: Without dead ends: 529 [2018-02-04 17:01:17,117 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2018-02-04 17:01:17,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2018-02-04 17:01:17,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 500. [2018-02-04 17:01:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-02-04 17:01:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 588 transitions. [2018-02-04 17:01:17,120 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 588 transitions. Word has length 64 [2018-02-04 17:01:17,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:17,120 INFO L432 AbstractCegarLoop]: Abstraction has 500 states and 588 transitions. [2018-02-04 17:01:17,120 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 17:01:17,120 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 588 transitions. [2018-02-04 17:01:17,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-02-04 17:01:17,121 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:17,121 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:17,121 INFO L371 AbstractCegarLoop]: === Iteration 72 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:17,121 INFO L82 PathProgramCache]: Analyzing trace with hash -447320024, now seen corresponding path program 1 times [2018-02-04 17:01:17,121 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:17,128 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:17,613 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:17,613 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 17:01:17,613 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:17,613 INFO L182 omatonBuilderFactory]: Interpolants [42566#true, 42567#false, 42568#(= 0 |main_#t~malloc0.offset|), 42569#(= main_~head~0.offset 0), 42570#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 42571#(and (= main_~head~0.offset main_~x~0.offset) (= 1 main_~state~0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 42572#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= 1 main_~state~0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 42573#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 1 main_~state~0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 42574#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 1 main_~state~0) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 42575#(and (= main_~x~0.offset 0) (= 1 main_~state~0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 42576#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset 0) (= 1 main_~state~0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 42577#(and (not (= |main_#t~malloc4.base| main_~x~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 main_~state~0) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 42578#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= 1 main_~state~0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 42579#(and (not (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 1 main_~state~0) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0)), 42580#(and (or (and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= 1 main_~state~0)) (< main_~x~0.offset main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 42581#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= 1 main_~state~0) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 42582#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 42583#(= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) (+ 0 4))), 42584#(= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) (+ 0 4))), 42585#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) (+ 0 4)))), 42586#(or (not (= 0 main_~head~0.offset)) (= 1 (select (select |#memory_int| |main_#t~mem22.base|) (+ 0 4)))), 42587#(or (<= 1 main_~x~0.offset) (not (= 0 main_~head~0.offset)) (<= (+ main_~x~0.offset 1) 0) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))), 42588#(or (<= 1 main_~x~0.offset) (not (= 1 (select |#valid| main_~x~0.base))) (<= (+ main_~x~0.offset 1) 0) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))), 42589#(and (or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= 0 |main_#t~mem21|))) (= (select |#valid| main_~x~0.base) 1)), 42590#(and (or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0)) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:01:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:17,613 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 17:01:17,613 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 17:01:17,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2018-02-04 17:01:17,614 INFO L87 Difference]: Start difference. First operand 500 states and 588 transitions. Second operand 25 states. [2018-02-04 17:01:18,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:18,594 INFO L93 Difference]: Finished difference Result 598 states and 699 transitions. [2018-02-04 17:01:18,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 17:01:18,594 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 64 [2018-02-04 17:01:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:18,595 INFO L225 Difference]: With dead ends: 598 [2018-02-04 17:01:18,595 INFO L226 Difference]: Without dead ends: 597 [2018-02-04 17:01:18,596 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=364, Invalid=2288, Unknown=0, NotChecked=0, Total=2652 [2018-02-04 17:01:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2018-02-04 17:01:18,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 578. [2018-02-04 17:01:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2018-02-04 17:01:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 684 transitions. [2018-02-04 17:01:18,598 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 684 transitions. Word has length 64 [2018-02-04 17:01:18,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:18,599 INFO L432 AbstractCegarLoop]: Abstraction has 578 states and 684 transitions. [2018-02-04 17:01:18,599 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 17:01:18,599 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 684 transitions. [2018-02-04 17:01:18,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-02-04 17:01:18,599 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:18,599 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:18,599 INFO L371 AbstractCegarLoop]: === Iteration 73 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:18,599 INFO L82 PathProgramCache]: Analyzing trace with hash -447270372, now seen corresponding path program 1 times [2018-02-04 17:01:18,600 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:18,605 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:18,822 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:18,822 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 17:01:18,822 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:18,822 INFO L182 omatonBuilderFactory]: Interpolants [43840#(= 0 main_~x~0.offset), 43841#(= main_~head~0.offset 0), 43821#true, 43822#false, 43823#(= (select |#valid| main_~head~0.base) 1), 43824#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 43825#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base)), 43826#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 43827#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 43828#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 43829#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 43830#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|)), 43831#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 43832#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))), 43833#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 43834#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)), 43835#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0)), 43836#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)), 43837#(and (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 43838#(or (= 0 |main_#t~mem22.offset|) (not (= main_~head~0.offset 0))), 43839#(or (not (= main_~head~0.offset 0)) (= 0 main_~x~0.offset))] [2018-02-04 17:01:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:18,823 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 17:01:18,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 17:01:18,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2018-02-04 17:01:18,823 INFO L87 Difference]: Start difference. First operand 578 states and 684 transitions. Second operand 21 states. [2018-02-04 17:01:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:19,303 INFO L93 Difference]: Finished difference Result 607 states and 705 transitions. [2018-02-04 17:01:19,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-04 17:01:19,304 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 64 [2018-02-04 17:01:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:19,305 INFO L225 Difference]: With dead ends: 607 [2018-02-04 17:01:19,305 INFO L226 Difference]: Without dead ends: 593 [2018-02-04 17:01:19,305 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 17:01:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2018-02-04 17:01:19,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 512. [2018-02-04 17:01:19,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2018-02-04 17:01:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 600 transitions. [2018-02-04 17:01:19,309 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 600 transitions. Word has length 64 [2018-02-04 17:01:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:19,309 INFO L432 AbstractCegarLoop]: Abstraction has 512 states and 600 transitions. [2018-02-04 17:01:19,309 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 17:01:19,309 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 600 transitions. [2018-02-04 17:01:19,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-02-04 17:01:19,309 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:19,309 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:19,309 INFO L371 AbstractCegarLoop]: === Iteration 74 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:19,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1271736990, now seen corresponding path program 1 times [2018-02-04 17:01:19,310 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:19,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:19,642 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:19,642 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:19,642 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 17:01:19,642 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:19,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:19,642 INFO L182 omatonBuilderFactory]: Interpolants [44992#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 44993#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 44994#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 44995#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 44996#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|)), 44997#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 44998#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))), 44999#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 45000#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 45001#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)), 45002#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 45003#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 45004#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 45005#(<= 0 |main_#t~mem19.offset|), 45006#(<= 0 main_~x~0.offset), 45007#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 44987#true, 44988#false, 44989#(= (select |#valid| main_~head~0.base) 1), 44990#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 44991#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base))] [2018-02-04 17:01:19,642 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:19,642 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 17:01:19,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 17:01:19,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2018-02-04 17:01:19,643 INFO L87 Difference]: Start difference. First operand 512 states and 600 transitions. Second operand 21 states. [2018-02-04 17:01:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:20,492 INFO L93 Difference]: Finished difference Result 678 states and 781 transitions. [2018-02-04 17:01:20,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-04 17:01:20,493 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 64 [2018-02-04 17:01:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:20,494 INFO L225 Difference]: With dead ends: 678 [2018-02-04 17:01:20,494 INFO L226 Difference]: Without dead ends: 678 [2018-02-04 17:01:20,495 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=335, Invalid=1735, Unknown=0, NotChecked=0, Total=2070 [2018-02-04 17:01:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2018-02-04 17:01:20,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 540. [2018-02-04 17:01:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2018-02-04 17:01:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 631 transitions. [2018-02-04 17:01:20,502 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 631 transitions. Word has length 64 [2018-02-04 17:01:20,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:20,502 INFO L432 AbstractCegarLoop]: Abstraction has 540 states and 631 transitions. [2018-02-04 17:01:20,502 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 17:01:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 631 transitions. [2018-02-04 17:01:20,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 17:01:20,503 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:20,503 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:20,503 INFO L371 AbstractCegarLoop]: === Iteration 75 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:20,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1972534751, now seen corresponding path program 1 times [2018-02-04 17:01:20,504 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:20,513 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:20,906 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:20,906 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-04 17:01:20,906 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:20,906 INFO L182 omatonBuilderFactory]: Interpolants [46276#true, 46277#false, 46278#(= |main_#t~malloc0.offset| 0), 46279#(= main_~head~0.offset 0), 46280#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 46281#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 46282#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 46283#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 46284#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 46285#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 46286#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 46287#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 46288#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 46289#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 46290#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 46291#(and (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))), 46292#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 46293#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset |main_#t~mem6.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 46294#(or (and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 46295#(or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 46296#(or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 46297#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 46298#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 46299#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:01:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:20,907 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 17:01:20,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 17:01:20,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:01:20,907 INFO L87 Difference]: Start difference. First operand 540 states and 631 transitions. Second operand 24 states. [2018-02-04 17:01:22,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:22,154 INFO L93 Difference]: Finished difference Result 691 states and 804 transitions. [2018-02-04 17:01:22,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 17:01:22,154 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 65 [2018-02-04 17:01:22,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:22,155 INFO L225 Difference]: With dead ends: 691 [2018-02-04 17:01:22,155 INFO L226 Difference]: Without dead ends: 691 [2018-02-04 17:01:22,155 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2018-02-04 17:01:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2018-02-04 17:01:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 599. [2018-02-04 17:01:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2018-02-04 17:01:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 700 transitions. [2018-02-04 17:01:22,159 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 700 transitions. Word has length 65 [2018-02-04 17:01:22,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:22,159 INFO L432 AbstractCegarLoop]: Abstraction has 599 states and 700 transitions. [2018-02-04 17:01:22,159 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 17:01:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 700 transitions. [2018-02-04 17:01:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 17:01:22,160 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:22,160 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:22,160 INFO L371 AbstractCegarLoop]: === Iteration 76 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:22,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1972534750, now seen corresponding path program 1 times [2018-02-04 17:01:22,160 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:22,167 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:22,981 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:22,981 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 17:01:22,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:22,981 INFO L182 omatonBuilderFactory]: Interpolants [47648#true, 47649#false, 47650#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 47651#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 47652#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 47653#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 47654#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 47655#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 47656#(and (= 8 (select |#length| main_~head~0.base)) (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 47657#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 47658#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 47659#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 47660#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 47661#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 8 (select |#length| |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47662#(and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 47663#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 47664#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 47665#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47666#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset |main_#t~mem6.offset|)), 47667#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (or (and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)))), 47668#(and (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0))) (or (and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 47669#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47670#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0))), 47671#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 0 main_~x~0.offset)), 47672#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 47673#(and (= |main_#t~mem13.offset| 0) (= 8 (select |#length| |main_#t~mem13.base|)))] [2018-02-04 17:01:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:22,982 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 17:01:22,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 17:01:22,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:01:22,982 INFO L87 Difference]: Start difference. First operand 599 states and 700 transitions. Second operand 26 states. [2018-02-04 17:01:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:24,499 INFO L93 Difference]: Finished difference Result 696 states and 807 transitions. [2018-02-04 17:01:24,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 17:01:24,499 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 65 [2018-02-04 17:01:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:24,500 INFO L225 Difference]: With dead ends: 696 [2018-02-04 17:01:24,500 INFO L226 Difference]: Without dead ends: 696 [2018-02-04 17:01:24,500 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=491, Invalid=2265, Unknown=0, NotChecked=0, Total=2756 [2018-02-04 17:01:24,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2018-02-04 17:01:24,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 599. [2018-02-04 17:01:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2018-02-04 17:01:24,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 699 transitions. [2018-02-04 17:01:24,503 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 699 transitions. Word has length 65 [2018-02-04 17:01:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:24,503 INFO L432 AbstractCegarLoop]: Abstraction has 599 states and 699 transitions. [2018-02-04 17:01:24,503 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 17:01:24,504 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 699 transitions. [2018-02-04 17:01:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 17:01:24,504 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:24,504 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:24,504 INFO L371 AbstractCegarLoop]: === Iteration 77 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:24,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1412648114, now seen corresponding path program 1 times [2018-02-04 17:01:24,505 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:24,511 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-02-04 17:01:24,703 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:01:24,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-04 17:01:24,703 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:24,704 INFO L182 omatonBuilderFactory]: Interpolants [49024#false, 49025#(= 0 |main_#t~malloc0.offset|), 49026#(= main_~head~0.offset 0), 49027#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 49028#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.offset main_~x~0.offset))) (or (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset)) (= main_~head~0.offset 0)), 49029#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.offset main_~x~0.offset))) (or (= main_~head~0.offset main_~x~0.offset) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 49030#(and (or (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) |main_#t~mem12|) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 49031#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 49032#(or (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4))) (not (= 0 |main_#t~mem20.offset|))), 49033#(or (not (= main_~x~0.offset 0)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))), 49034#(or (not (= main_~x~0.offset 0)) (and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem21| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))))), 49035#(not (= 0 main_~head~0.offset)), 49023#true] [2018-02-04 17:01:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-02-04 17:01:24,704 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 17:01:24,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 17:01:24,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-02-04 17:01:24,704 INFO L87 Difference]: Start difference. First operand 599 states and 699 transitions. Second operand 13 states. [2018-02-04 17:01:24,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:24,924 INFO L93 Difference]: Finished difference Result 642 states and 737 transitions. [2018-02-04 17:01:24,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-02-04 17:01:24,924 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2018-02-04 17:01:24,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:24,925 INFO L225 Difference]: With dead ends: 642 [2018-02-04 17:01:24,925 INFO L226 Difference]: Without dead ends: 623 [2018-02-04 17:01:24,925 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:01:24,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2018-02-04 17:01:24,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 601. [2018-02-04 17:01:24,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2018-02-04 17:01:24,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 699 transitions. [2018-02-04 17:01:24,929 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 699 transitions. Word has length 65 [2018-02-04 17:01:24,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:24,929 INFO L432 AbstractCegarLoop]: Abstraction has 601 states and 699 transitions. [2018-02-04 17:01:24,929 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 17:01:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 699 transitions. [2018-02-04 17:01:24,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 17:01:24,929 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:24,929 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:24,929 INFO L371 AbstractCegarLoop]: === Iteration 78 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:24,929 INFO L82 PathProgramCache]: Analyzing trace with hash -769140970, now seen corresponding path program 3 times [2018-02-04 17:01:24,930 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:24,935 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:25,166 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:25,166 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-02-04 17:01:25,166 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:25,166 INFO L182 omatonBuilderFactory]: Interpolants [50304#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 50305#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 50306#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 50307#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 50308#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 50309#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 50310#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 50311#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 50312#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 50313#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 50314#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 50315#(= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 50316#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 50317#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 50318#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 50319#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 50320#(= 1 (select |#valid| |main_#t~mem13.base|)), 50301#true, 50302#false, 50303#(= (select |#valid| main_~head~0.base) 1)] [2018-02-04 17:01:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:25,167 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-04 17:01:25,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-04 17:01:25,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-02-04 17:01:25,167 INFO L87 Difference]: Start difference. First operand 601 states and 699 transitions. Second operand 20 states. [2018-02-04 17:01:25,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:25,879 INFO L93 Difference]: Finished difference Result 700 states and 807 transitions. [2018-02-04 17:01:25,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 17:01:25,880 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 65 [2018-02-04 17:01:25,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:25,881 INFO L225 Difference]: With dead ends: 700 [2018-02-04 17:01:25,881 INFO L226 Difference]: Without dead ends: 700 [2018-02-04 17:01:25,881 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1363, Unknown=0, NotChecked=0, Total=1560 [2018-02-04 17:01:25,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2018-02-04 17:01:25,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 601. [2018-02-04 17:01:25,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2018-02-04 17:01:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 695 transitions. [2018-02-04 17:01:25,885 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 695 transitions. Word has length 65 [2018-02-04 17:01:25,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:25,885 INFO L432 AbstractCegarLoop]: Abstraction has 601 states and 695 transitions. [2018-02-04 17:01:25,885 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-04 17:01:25,885 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 695 transitions. [2018-02-04 17:01:25,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 17:01:25,885 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:25,885 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:25,885 INFO L371 AbstractCegarLoop]: === Iteration 79 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:25,885 INFO L82 PathProgramCache]: Analyzing trace with hash -769140969, now seen corresponding path program 3 times [2018-02-04 17:01:25,886 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:25,891 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:26,279 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:26,279 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 17:01:26,279 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:26,280 INFO L182 omatonBuilderFactory]: Interpolants [51680#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 51681#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 51682#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 51683#(and (= |main_#t~mem13.offset| 0) (<= 8 (select |#length| |main_#t~mem13.base|))), 51662#true, 51663#false, 51664#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 51665#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base))), 51666#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1)), 51667#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 51668#(and (= 0 main_~head~0.offset) (= (select |#length| main_~x~0.base) 8) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 51669#(and (= 0 main_~head~0.offset) (= (select |#length| main_~x~0.base) 8) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 51670#(and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 51671#(and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 51672#(and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 51673#(and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 51674#(and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 51675#(and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 51676#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (<= 8 (select |#length| main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 51677#(and (<= 8 (select |#length| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 51678#(and (<= 8 (select |#length| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 51679#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))] [2018-02-04 17:01:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:26,280 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 17:01:26,280 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 17:01:26,280 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:01:26,280 INFO L87 Difference]: Start difference. First operand 601 states and 695 transitions. Second operand 22 states. [2018-02-04 17:01:27,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:27,431 INFO L93 Difference]: Finished difference Result 702 states and 805 transitions. [2018-02-04 17:01:27,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-04 17:01:27,431 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2018-02-04 17:01:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:27,432 INFO L225 Difference]: With dead ends: 702 [2018-02-04 17:01:27,432 INFO L226 Difference]: Without dead ends: 702 [2018-02-04 17:01:27,432 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=1455, Unknown=0, NotChecked=0, Total=1722 [2018-02-04 17:01:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-02-04 17:01:27,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 577. [2018-02-04 17:01:27,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2018-02-04 17:01:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 666 transitions. [2018-02-04 17:01:27,435 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 666 transitions. Word has length 65 [2018-02-04 17:01:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:27,435 INFO L432 AbstractCegarLoop]: Abstraction has 577 states and 666 transitions. [2018-02-04 17:01:27,436 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 17:01:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 666 transitions. [2018-02-04 17:01:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-02-04 17:01:27,436 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:27,436 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:27,436 INFO L371 AbstractCegarLoop]: === Iteration 80 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:27,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2018285813, now seen corresponding path program 2 times [2018-02-04 17:01:27,437 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:27,441 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:27,674 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:27,674 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 17:01:27,674 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:27,674 INFO L182 omatonBuilderFactory]: Interpolants [53003#true, 53004#false, 53005#(= 0 |main_#t~malloc0.offset|), 53006#(= 0 main_~head~0.offset), 53007#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 53008#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 53009#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 53010#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 53011#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 53012#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 53013#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 53014#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 53015#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 53016#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 53017#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 53018#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 53019#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 53020#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 53021#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 53022#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 53023#(and (<= 0 |main_#t~mem15.offset|) (<= (+ |main_#t~mem15.offset| 8) (select |#length| |main_#t~mem15.base|)))] [2018-02-04 17:01:27,675 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:27,675 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 17:01:27,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 17:01:27,675 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2018-02-04 17:01:27,675 INFO L87 Difference]: Start difference. First operand 577 states and 666 transitions. Second operand 21 states. [2018-02-04 17:01:28,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:28,680 INFO L93 Difference]: Finished difference Result 682 states and 783 transitions. [2018-02-04 17:01:28,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-04 17:01:28,681 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2018-02-04 17:01:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:28,682 INFO L225 Difference]: With dead ends: 682 [2018-02-04 17:01:28,682 INFO L226 Difference]: Without dead ends: 682 [2018-02-04 17:01:28,682 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=369, Invalid=1611, Unknown=0, NotChecked=0, Total=1980 [2018-02-04 17:01:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2018-02-04 17:01:28,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 611. [2018-02-04 17:01:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2018-02-04 17:01:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 703 transitions. [2018-02-04 17:01:28,685 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 703 transitions. Word has length 68 [2018-02-04 17:01:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:28,686 INFO L432 AbstractCegarLoop]: Abstraction has 611 states and 703 transitions. [2018-02-04 17:01:28,686 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 17:01:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 703 transitions. [2018-02-04 17:01:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-02-04 17:01:28,686 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:28,686 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:28,686 INFO L371 AbstractCegarLoop]: === Iteration 81 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:28,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1235115106, now seen corresponding path program 1 times [2018-02-04 17:01:28,687 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:28,693 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:28,982 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:01:28,982 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:28,983 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-02-04 17:01:28,983 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:28,983 INFO L182 omatonBuilderFactory]: Interpolants [54368#(= main_~head~0.offset 0), 54369#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.offset 0)), 54370#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 54371#(and (or (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem13.offset|) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset |main_#t~mem13.offset|)) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset |main_#t~mem13.offset|))) (= main_~head~0.offset 0)), 54372#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem14| (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0)), 54373#(and (or |main_#t~short18| (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)))))) (= main_~head~0.offset 0)), 54374#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)))))) (= main_~head~0.offset 0)), 54375#(and (or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)) (and (= |main_#t~mem19.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4)))))) (= main_~head~0.offset 0)), 54376#(and (or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)) (and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset))) (= main_~head~0.offset 0)), 54377#(and (or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)) (not (= 0 |main_#t~mem12|))) (= main_~head~0.offset 0)), 54378#(and (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))), 54379#(not (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 54380#(not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0)), 54381#(not (= 0 |main_#t~mem22.offset|)), 54382#(not (= 0 main_~x~0.offset)), 54383#(not (= main_~head~0.offset 0)), 54365#true, 54366#false, 54367#(= 0 |main_#t~malloc0.offset|)] [2018-02-04 17:01:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 17:01:28,983 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 17:01:28,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 17:01:28,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:01:28,983 INFO L87 Difference]: Start difference. First operand 611 states and 703 transitions. Second operand 19 states. [2018-02-04 17:01:29,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:29,655 INFO L93 Difference]: Finished difference Result 721 states and 815 transitions. [2018-02-04 17:01:29,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 17:01:29,655 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 68 [2018-02-04 17:01:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:29,657 INFO L225 Difference]: With dead ends: 721 [2018-02-04 17:01:29,657 INFO L226 Difference]: Without dead ends: 695 [2018-02-04 17:01:29,657 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2018-02-04 17:01:29,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2018-02-04 17:01:29,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 634. [2018-02-04 17:01:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2018-02-04 17:01:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 729 transitions. [2018-02-04 17:01:29,662 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 729 transitions. Word has length 68 [2018-02-04 17:01:29,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:29,662 INFO L432 AbstractCegarLoop]: Abstraction has 634 states and 729 transitions. [2018-02-04 17:01:29,662 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 17:01:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 729 transitions. [2018-02-04 17:01:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-02-04 17:01:29,663 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:29,663 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:29,663 INFO L371 AbstractCegarLoop]: === Iteration 82 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:29,663 INFO L82 PathProgramCache]: Analyzing trace with hash 705341638, now seen corresponding path program 1 times [2018-02-04 17:01:29,663 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:29,670 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:30,336 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:30,336 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 17:01:30,336 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:30,336 INFO L182 omatonBuilderFactory]: Interpolants [55808#(and (or (not (= 1 (select |#valid| main_~x~0.base))) (and (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 4)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 55809#(not (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)) 0)), 55810#(or (<= 1 main_~x~0.offset) (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (<= (+ main_~x~0.offset 1) 0)), 55811#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= |main_#t~mem21| 0))), 55812#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0)), 55783#true, 55784#false, 55785#(= 0 |main_#t~malloc0.offset|), 55786#(= main_~head~0.offset 0), 55787#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 55788#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 55789#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 55790#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 55791#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 55792#(and (or (and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.offset main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~head~0.offset 0)), 55793#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 55794#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~state~0 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 55795#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 55796#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~malloc4.base| main_~head~0.base)) (= main_~head~0.offset 0)), 55797#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 55798#(and (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~state~0 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (not (= |main_#t~mem6.base| main_~head~0.base)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (= main_~head~0.offset 0)), 55799#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 55800#(and (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 55801#(and (not (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~malloc4.base| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 55802#(and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0)), 55803#(and (not (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 55804#(and (not (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 55805#(and (not (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 55806#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 55807#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| |main_#t~mem11.base|) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0))] [2018-02-04 17:01:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:30,336 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 17:01:30,336 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 17:01:30,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:01:30,337 INFO L87 Difference]: Start difference. First operand 634 states and 729 transitions. Second operand 30 states. [2018-02-04 17:01:31,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:31,805 INFO L93 Difference]: Finished difference Result 1068 states and 1229 transitions. [2018-02-04 17:01:31,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-04 17:01:31,806 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 70 [2018-02-04 17:01:31,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:31,807 INFO L225 Difference]: With dead ends: 1068 [2018-02-04 17:01:31,807 INFO L226 Difference]: Without dead ends: 1062 [2018-02-04 17:01:31,808 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=643, Invalid=3389, Unknown=0, NotChecked=0, Total=4032 [2018-02-04 17:01:31,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-02-04 17:01:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 783. [2018-02-04 17:01:31,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2018-02-04 17:01:31,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 907 transitions. [2018-02-04 17:01:31,812 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 907 transitions. Word has length 70 [2018-02-04 17:01:31,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:31,812 INFO L432 AbstractCegarLoop]: Abstraction has 783 states and 907 transitions. [2018-02-04 17:01:31,812 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 17:01:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 907 transitions. [2018-02-04 17:01:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-02-04 17:01:31,813 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:31,813 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:31,813 INFO L371 AbstractCegarLoop]: === Iteration 83 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:31,813 INFO L82 PathProgramCache]: Analyzing trace with hash 86282718, now seen corresponding path program 1 times [2018-02-04 17:01:31,813 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:31,818 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:31,842 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-02-04 17:01:31,843 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:01:31,843 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 17:01:31,843 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:31,843 INFO L182 omatonBuilderFactory]: Interpolants [57732#true, 57733#false, 57734#(and (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 57735#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 4))), 57736#(and (<= 0 (+ |main_#t~mem15.offset| 4)) (<= (+ |main_#t~mem15.offset| 8) (select |#length| |main_#t~mem15.base|)))] [2018-02-04 17:01:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-02-04 17:01:31,843 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 17:01:31,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 17:01:31,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:01:31,843 INFO L87 Difference]: Start difference. First operand 783 states and 907 transitions. Second operand 5 states. [2018-02-04 17:01:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:31,896 INFO L93 Difference]: Finished difference Result 790 states and 904 transitions. [2018-02-04 17:01:31,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 17:01:31,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-02-04 17:01:31,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:31,898 INFO L225 Difference]: With dead ends: 790 [2018-02-04 17:01:31,898 INFO L226 Difference]: Without dead ends: 790 [2018-02-04 17:01:31,898 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 17:01:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2018-02-04 17:01:31,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 754. [2018-02-04 17:01:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2018-02-04 17:01:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 866 transitions. [2018-02-04 17:01:31,904 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 866 transitions. Word has length 70 [2018-02-04 17:01:31,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:31,905 INFO L432 AbstractCegarLoop]: Abstraction has 754 states and 866 transitions. [2018-02-04 17:01:31,905 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 17:01:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 866 transitions. [2018-02-04 17:01:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-02-04 17:01:31,905 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:31,905 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:31,905 INFO L371 AbstractCegarLoop]: === Iteration 84 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:31,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1918427490, now seen corresponding path program 1 times [2018-02-04 17:01:31,906 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:31,909 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:32,052 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:32,052 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:01:32,052 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:32,052 INFO L182 omatonBuilderFactory]: Interpolants [59296#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 59297#(= 0 |main_#t~mem19.offset|), 59298#(= main_~x~0.offset 0), 59299#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 59285#true, 59286#false, 59287#(= 0 |main_#t~malloc0.offset|), 59288#(= main_~head~0.offset 0), 59289#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59290#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 59291#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 59292#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 59293#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 59294#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 59295#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))] [2018-02-04 17:01:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:32,052 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:01:32,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:01:32,052 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:01:32,053 INFO L87 Difference]: Start difference. First operand 754 states and 866 transitions. Second operand 15 states. [2018-02-04 17:01:32,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:32,426 INFO L93 Difference]: Finished difference Result 785 states and 894 transitions. [2018-02-04 17:01:32,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 17:01:32,426 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 72 [2018-02-04 17:01:32,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:32,427 INFO L225 Difference]: With dead ends: 785 [2018-02-04 17:01:32,427 INFO L226 Difference]: Without dead ends: 785 [2018-02-04 17:01:32,427 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:01:32,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2018-02-04 17:01:32,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 769. [2018-02-04 17:01:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2018-02-04 17:01:32,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 881 transitions. [2018-02-04 17:01:32,433 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 881 transitions. Word has length 72 [2018-02-04 17:01:32,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:32,433 INFO L432 AbstractCegarLoop]: Abstraction has 769 states and 881 transitions. [2018-02-04 17:01:32,433 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:01:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 881 transitions. [2018-02-04 17:01:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-02-04 17:01:32,434 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:32,434 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:32,434 INFO L371 AbstractCegarLoop]: === Iteration 85 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:32,435 INFO L82 PathProgramCache]: Analyzing trace with hash 603724741, now seen corresponding path program 3 times [2018-02-04 17:01:32,435 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:32,443 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:33,008 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:33,008 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-04 17:01:33,008 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:33,008 INFO L182 omatonBuilderFactory]: Interpolants [60884#true, 60885#false, 60886#(= 0 |main_#t~malloc0.offset|), 60887#(= main_~head~0.offset 0), 60888#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 60889#(and (= main_~head~0.offset main_~x~0.offset) (= main_~state~0 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 60890#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~state~0 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 60891#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) main_~state~0) (= (select |#valid| main_~x~0.base) 1)), 60892#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~state~0 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 60893#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~state~0 1) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 60894#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~state~0 1) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 60895#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 1) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 60896#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 1) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 60897#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 1) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 60898#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 1) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 60899#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 1)), 60900#(and (not (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 60901#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0)), 60902#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 60903#(and (not (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 60904#(and (not (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 60905#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 60906#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| |main_#t~mem11.base|) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 60907#(and (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 4)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 60908#(not (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)) 0)), 60909#(or (<= 1 main_~x~0.offset) (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (<= (+ main_~x~0.offset 1) 0)), 60910#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= |main_#t~mem21| 0))), 60911#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0))] [2018-02-04 17:01:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:33,009 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-04 17:01:33,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-04 17:01:33,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:01:33,009 INFO L87 Difference]: Start difference. First operand 769 states and 881 transitions. Second operand 28 states. [2018-02-04 17:01:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:34,188 INFO L93 Difference]: Finished difference Result 919 states and 1042 transitions. [2018-02-04 17:01:34,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-02-04 17:01:34,188 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 72 [2018-02-04 17:01:34,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:34,189 INFO L225 Difference]: With dead ends: 919 [2018-02-04 17:01:34,189 INFO L226 Difference]: Without dead ends: 913 [2018-02-04 17:01:34,190 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=552, Invalid=2870, Unknown=0, NotChecked=0, Total=3422 [2018-02-04 17:01:34,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2018-02-04 17:01:34,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 618. [2018-02-04 17:01:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2018-02-04 17:01:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 700 transitions. [2018-02-04 17:01:34,195 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 700 transitions. Word has length 72 [2018-02-04 17:01:34,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:34,195 INFO L432 AbstractCegarLoop]: Abstraction has 618 states and 700 transitions. [2018-02-04 17:01:34,195 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-04 17:01:34,195 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 700 transitions. [2018-02-04 17:01:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 17:01:34,196 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:34,196 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:34,196 INFO L371 AbstractCegarLoop]: === Iteration 86 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:34,196 INFO L82 PathProgramCache]: Analyzing trace with hash -658289898, now seen corresponding path program 1 times [2018-02-04 17:01:34,197 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:34,203 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:34,417 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:34,417 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-04 17:01:34,417 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:34,418 INFO L182 omatonBuilderFactory]: Interpolants [62511#true, 62512#false, 62513#(= 0 |main_#t~malloc0.offset|), 62514#(= main_~head~0.offset 0), 62515#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 62516#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 62517#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62518#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))))), 62519#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 62520#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 62521#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 62522#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 62523#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 62524#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 62525#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 62526#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:01:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:34,418 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-04 17:01:34,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-04 17:01:34,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2018-02-04 17:01:34,418 INFO L87 Difference]: Start difference. First operand 618 states and 700 transitions. Second operand 16 states. [2018-02-04 17:01:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:34,961 INFO L93 Difference]: Finished difference Result 633 states and 712 transitions. [2018-02-04 17:01:34,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-04 17:01:34,961 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2018-02-04 17:01:34,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:34,962 INFO L225 Difference]: With dead ends: 633 [2018-02-04 17:01:34,962 INFO L226 Difference]: Without dead ends: 633 [2018-02-04 17:01:34,962 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=220, Invalid=902, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 17:01:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-02-04 17:01:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 619. [2018-02-04 17:01:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2018-02-04 17:01:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 702 transitions. [2018-02-04 17:01:34,965 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 702 transitions. Word has length 73 [2018-02-04 17:01:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:34,966 INFO L432 AbstractCegarLoop]: Abstraction has 619 states and 702 transitions. [2018-02-04 17:01:34,966 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-04 17:01:34,966 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 702 transitions. [2018-02-04 17:01:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 17:01:34,967 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:34,967 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:34,967 INFO L371 AbstractCegarLoop]: === Iteration 87 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:34,967 INFO L82 PathProgramCache]: Analyzing trace with hash -658289897, now seen corresponding path program 1 times [2018-02-04 17:01:34,967 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:34,972 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:35,176 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:35,176 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 17:01:35,176 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:35,176 INFO L182 omatonBuilderFactory]: Interpolants [63815#true, 63816#false, 63817#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 63818#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 63819#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 63820#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 63821#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))))), 63822#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))))), 63823#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 63824#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 63825#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 63826#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 63827#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 63828#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 63829#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0))] [2018-02-04 17:01:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:35,176 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 17:01:35,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 17:01:35,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2018-02-04 17:01:35,177 INFO L87 Difference]: Start difference. First operand 619 states and 702 transitions. Second operand 15 states. [2018-02-04 17:01:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:35,737 INFO L93 Difference]: Finished difference Result 635 states and 714 transitions. [2018-02-04 17:01:35,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-04 17:01:35,738 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 73 [2018-02-04 17:01:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:35,739 INFO L225 Difference]: With dead ends: 635 [2018-02-04 17:01:35,739 INFO L226 Difference]: Without dead ends: 635 [2018-02-04 17:01:35,739 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:01:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2018-02-04 17:01:35,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 619. [2018-02-04 17:01:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2018-02-04 17:01:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 701 transitions. [2018-02-04 17:01:35,742 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 701 transitions. Word has length 73 [2018-02-04 17:01:35,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:35,742 INFO L432 AbstractCegarLoop]: Abstraction has 619 states and 701 transitions. [2018-02-04 17:01:35,742 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 17:01:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 701 transitions. [2018-02-04 17:01:35,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-02-04 17:01:35,742 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:35,742 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:35,742 INFO L371 AbstractCegarLoop]: === Iteration 88 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:35,742 INFO L82 PathProgramCache]: Analyzing trace with hash 941173883, now seen corresponding path program 2 times [2018-02-04 17:01:35,743 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:35,747 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:36,101 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:36,101 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:36,101 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 17:01:36,101 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:36,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:36,102 INFO L182 omatonBuilderFactory]: Interpolants [65120#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 65121#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 65122#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 65123#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 65124#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 65125#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 65126#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 65127#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 65128#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 65129#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 65130#(<= 0 |main_#t~mem19.offset|), 65131#(<= 0 main_~x~0.offset), 65132#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 65110#true, 65111#false, 65112#(= 0 |main_#t~malloc0.offset|), 65113#(= 0 main_~head~0.offset), 65114#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 65115#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 65116#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 65117#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 65118#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 65119#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:01:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:36,102 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 17:01:36,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 17:01:36,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2018-02-04 17:01:36,102 INFO L87 Difference]: Start difference. First operand 619 states and 701 transitions. Second operand 23 states. [2018-02-04 17:01:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:37,681 INFO L93 Difference]: Finished difference Result 765 states and 861 transitions. [2018-02-04 17:01:37,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-02-04 17:01:37,681 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 74 [2018-02-04 17:01:37,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:37,682 INFO L225 Difference]: With dead ends: 765 [2018-02-04 17:01:37,682 INFO L226 Difference]: Without dead ends: 765 [2018-02-04 17:01:37,682 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=739, Invalid=2921, Unknown=0, NotChecked=0, Total=3660 [2018-02-04 17:01:37,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2018-02-04 17:01:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 664. [2018-02-04 17:01:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2018-02-04 17:01:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 753 transitions. [2018-02-04 17:01:37,686 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 753 transitions. Word has length 74 [2018-02-04 17:01:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:37,686 INFO L432 AbstractCegarLoop]: Abstraction has 664 states and 753 transitions. [2018-02-04 17:01:37,686 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 17:01:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 753 transitions. [2018-02-04 17:01:37,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-02-04 17:01:37,686 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:37,687 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:37,687 INFO L371 AbstractCegarLoop]: === Iteration 89 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:37,687 INFO L82 PathProgramCache]: Analyzing trace with hash -888380643, now seen corresponding path program 4 times [2018-02-04 17:01:37,687 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:37,691 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:37,951 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:37,951 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 17:01:37,952 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:37,952 INFO L182 omatonBuilderFactory]: Interpolants [66656#(= 1 (select |#valid| |main_#t~mem13.base|)), 66639#false, 66638#true, 66641#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 66640#(= (select |#valid| main_~head~0.base) 1), 66643#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 66642#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 66645#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 66644#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 66647#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 66646#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 66649#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 66648#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))), 66651#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 66650#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 66653#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 66652#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 66655#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 66654#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)))] [2018-02-04 17:01:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:37,952 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 17:01:37,952 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 17:01:37,952 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:01:37,952 INFO L87 Difference]: Start difference. First operand 664 states and 753 transitions. Second operand 19 states. [2018-02-04 17:01:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:38,674 INFO L93 Difference]: Finished difference Result 739 states and 834 transitions. [2018-02-04 17:01:38,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 17:01:38,675 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 75 [2018-02-04 17:01:38,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:38,675 INFO L225 Difference]: With dead ends: 739 [2018-02-04 17:01:38,676 INFO L226 Difference]: Without dead ends: 739 [2018-02-04 17:01:38,676 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2018-02-04 17:01:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2018-02-04 17:01:38,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 664. [2018-02-04 17:01:38,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2018-02-04 17:01:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 751 transitions. [2018-02-04 17:01:38,679 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 751 transitions. Word has length 75 [2018-02-04 17:01:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:38,679 INFO L432 AbstractCegarLoop]: Abstraction has 664 states and 751 transitions. [2018-02-04 17:01:38,679 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 17:01:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 751 transitions. [2018-02-04 17:01:38,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-02-04 17:01:38,680 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:38,680 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:38,680 INFO L371 AbstractCegarLoop]: === Iteration 90 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:38,680 INFO L82 PathProgramCache]: Analyzing trace with hash -888380642, now seen corresponding path program 4 times [2018-02-04 17:01:38,680 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:38,685 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:38,984 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:38,984 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 17:01:38,984 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:38,984 INFO L182 omatonBuilderFactory]: Interpolants [68103#false, 68102#true, 68105#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 68104#(= (select |#valid| main_~head~0.base) 1), 68107#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 68106#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 68109#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 68108#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68111#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 68110#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 68113#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 68112#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 68115#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 68114#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 68117#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 68116#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 68119#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 68118#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 68120#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0))] [2018-02-04 17:01:38,985 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:38,985 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 17:01:38,985 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 17:01:38,985 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:01:38,985 INFO L87 Difference]: Start difference. First operand 664 states and 751 transitions. Second operand 19 states. [2018-02-04 17:01:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:39,711 INFO L93 Difference]: Finished difference Result 738 states and 832 transitions. [2018-02-04 17:01:39,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 17:01:39,711 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 75 [2018-02-04 17:01:39,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:39,712 INFO L225 Difference]: With dead ends: 738 [2018-02-04 17:01:39,712 INFO L226 Difference]: Without dead ends: 738 [2018-02-04 17:01:39,712 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=1014, Unknown=0, NotChecked=0, Total=1190 [2018-02-04 17:01:39,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2018-02-04 17:01:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 651. [2018-02-04 17:01:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2018-02-04 17:01:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 736 transitions. [2018-02-04 17:01:39,715 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 736 transitions. Word has length 75 [2018-02-04 17:01:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:39,715 INFO L432 AbstractCegarLoop]: Abstraction has 651 states and 736 transitions. [2018-02-04 17:01:39,715 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 17:01:39,715 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 736 transitions. [2018-02-04 17:01:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-02-04 17:01:39,716 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:39,716 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:39,716 INFO L371 AbstractCegarLoop]: === Iteration 91 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:39,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1230826844, now seen corresponding path program 1 times [2018-02-04 17:01:39,716 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:39,723 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:40,188 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:40,189 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:40,189 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-04 17:01:40,189 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:40,189 INFO L182 omatonBuilderFactory]: Interpolants [69569#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 69568#(<= 0 main_~x~0.offset), 69543#false, 69542#true, 69545#(= main_~head~0.offset 0), 69544#(= |main_#t~malloc0.offset| 0), 69547#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 69546#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 69549#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 69548#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 69551#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 69550#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 69553#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 69552#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 69555#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 69554#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 69557#(and (= 0 main_~head~0.offset) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))), 69556#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 69559#(and (= 0 main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset |main_#t~mem6.offset|)), 69558#(and (= 0 main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 69561#(or (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 69560#(or (and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 69563#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)), 69562#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 69565#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 69564#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 69567#(<= 0 |main_#t~mem19.offset|), 69566#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))] [2018-02-04 17:01:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:40,189 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-04 17:01:40,189 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-04 17:01:40,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:01:40,190 INFO L87 Difference]: Start difference. First operand 651 states and 736 transitions. Second operand 28 states. [2018-02-04 17:01:41,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:41,843 INFO L93 Difference]: Finished difference Result 815 states and 917 transitions. [2018-02-04 17:01:41,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-02-04 17:01:41,843 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 76 [2018-02-04 17:01:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:41,844 INFO L225 Difference]: With dead ends: 815 [2018-02-04 17:01:41,844 INFO L226 Difference]: Without dead ends: 815 [2018-02-04 17:01:41,844 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=917, Invalid=3775, Unknown=0, NotChecked=0, Total=4692 [2018-02-04 17:01:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2018-02-04 17:01:41,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 681. [2018-02-04 17:01:41,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2018-02-04 17:01:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 775 transitions. [2018-02-04 17:01:41,848 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 775 transitions. Word has length 76 [2018-02-04 17:01:41,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:41,848 INFO L432 AbstractCegarLoop]: Abstraction has 681 states and 775 transitions. [2018-02-04 17:01:41,848 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-04 17:01:41,848 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 775 transitions. [2018-02-04 17:01:41,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-02-04 17:01:41,848 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:41,848 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:41,849 INFO L371 AbstractCegarLoop]: === Iteration 92 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:41,849 INFO L82 PathProgramCache]: Analyzing trace with hash -571506033, now seen corresponding path program 3 times [2018-02-04 17:01:41,849 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:41,854 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:42,206 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:42,207 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 17:01:42,207 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:42,207 INFO L182 omatonBuilderFactory]: Interpolants [71169#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 71168#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 71171#(<= 0 |main_#t~mem19.offset|), 71170#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 71173#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 71172#(<= 0 main_~x~0.offset), 71149#false, 71148#true, 71151#(= 0 main_~head~0.offset), 71150#(= 0 |main_#t~malloc0.offset|), 71153#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 71152#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 71155#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 71154#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 71157#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 71156#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 71159#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 71158#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 71161#(and (= 0 main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 71160#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 71163#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 71162#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 71165#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 71164#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 71167#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 71166#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-02-04 17:01:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:42,207 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 17:01:42,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 17:01:42,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:01:42,208 INFO L87 Difference]: Start difference. First operand 681 states and 775 transitions. Second operand 26 states. [2018-02-04 17:01:43,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:43,566 INFO L93 Difference]: Finished difference Result 892 states and 1008 transitions. [2018-02-04 17:01:43,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-02-04 17:01:43,567 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 76 [2018-02-04 17:01:43,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:43,567 INFO L225 Difference]: With dead ends: 892 [2018-02-04 17:01:43,568 INFO L226 Difference]: Without dead ends: 892 [2018-02-04 17:01:43,568 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=703, Invalid=3457, Unknown=0, NotChecked=0, Total=4160 [2018-02-04 17:01:43,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2018-02-04 17:01:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 758. [2018-02-04 17:01:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2018-02-04 17:01:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 867 transitions. [2018-02-04 17:01:43,572 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 867 transitions. Word has length 76 [2018-02-04 17:01:43,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:43,572 INFO L432 AbstractCegarLoop]: Abstraction has 758 states and 867 transitions. [2018-02-04 17:01:43,572 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 17:01:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 867 transitions. [2018-02-04 17:01:43,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 17:01:43,572 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:43,572 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:43,572 INFO L371 AbstractCegarLoop]: === Iteration 93 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:43,573 INFO L82 PathProgramCache]: Analyzing trace with hash 499073556, now seen corresponding path program 1 times [2018-02-04 17:01:43,573 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:43,580 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:44,122 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:44,122 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 17:01:44,123 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:44,123 INFO L182 omatonBuilderFactory]: Interpolants [72903#false, 72902#true, 72905#(= main_~head~0.offset 0), 72904#(= |main_#t~malloc0.offset| 0), 72907#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 72906#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 72909#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 72908#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 72911#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 72910#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 72913#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 72912#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 72915#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 72914#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 72917#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 72916#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 72919#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 72918#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))), 72921#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 72920#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset |main_#t~mem6.offset|)), 72923#(or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 72922#(or (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 72925#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 72924#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 72927#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 72926#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 72928#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:01:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:44,123 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-02-04 17:01:44,123 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-02-04 17:01:44,123 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2018-02-04 17:01:44,124 INFO L87 Difference]: Start difference. First operand 758 states and 867 transitions. Second operand 27 states. [2018-02-04 17:01:45,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:45,679 INFO L93 Difference]: Finished difference Result 898 states and 1025 transitions. [2018-02-04 17:01:45,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-02-04 17:01:45,680 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 77 [2018-02-04 17:01:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:45,681 INFO L225 Difference]: With dead ends: 898 [2018-02-04 17:01:45,681 INFO L226 Difference]: Without dead ends: 898 [2018-02-04 17:01:45,681 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=457, Invalid=2849, Unknown=0, NotChecked=0, Total=3306 [2018-02-04 17:01:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2018-02-04 17:01:45,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 758. [2018-02-04 17:01:45,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2018-02-04 17:01:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 865 transitions. [2018-02-04 17:01:45,688 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 865 transitions. Word has length 77 [2018-02-04 17:01:45,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:45,688 INFO L432 AbstractCegarLoop]: Abstraction has 758 states and 865 transitions. [2018-02-04 17:01:45,688 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-02-04 17:01:45,688 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 865 transitions. [2018-02-04 17:01:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 17:01:45,689 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:45,689 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:45,689 INFO L371 AbstractCegarLoop]: === Iteration 94 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash 499073557, now seen corresponding path program 1 times [2018-02-04 17:01:45,690 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:45,702 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:46,531 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:46,532 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-04 17:01:46,532 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:46,532 INFO L182 omatonBuilderFactory]: Interpolants [74647#true, 74649#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 74648#false, 74651#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 74650#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 74653#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 74652#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 74655#(and (= 8 (select |#length| main_~head~0.base)) (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 74654#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 74657#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 74656#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 74659#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 74658#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 74661#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 74660#(and (= 8 (select |#length| main_~head~0.base)) (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74663#(and (= 8 (select |#length| main_~head~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 74662#(and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 74665#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset |main_#t~mem6.offset|)), 74664#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74667#(and (or (and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)))), 74666#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (or (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)))), 74669#(and (= 0 |main_#t~mem11.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0))))), 74668#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74671#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 74670#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)))) (= 0 main_~x~0.offset)), 74673#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 74672#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 74674#(and (= |main_#t~mem13.offset| 0) (= 8 (select |#length| |main_#t~mem13.base|)))] [2018-02-04 17:01:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:46,532 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-04 17:01:46,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-04 17:01:46,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:01:46,532 INFO L87 Difference]: Start difference. First operand 758 states and 865 transitions. Second operand 28 states. [2018-02-04 17:01:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:48,328 INFO L93 Difference]: Finished difference Result 897 states and 1023 transitions. [2018-02-04 17:01:48,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-04 17:01:48,328 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 77 [2018-02-04 17:01:48,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:48,329 INFO L225 Difference]: With dead ends: 897 [2018-02-04 17:01:48,329 INFO L226 Difference]: Without dead ends: 897 [2018-02-04 17:01:48,330 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=403, Invalid=2459, Unknown=0, NotChecked=0, Total=2862 [2018-02-04 17:01:48,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2018-02-04 17:01:48,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 758. [2018-02-04 17:01:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2018-02-04 17:01:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 863 transitions. [2018-02-04 17:01:48,336 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 863 transitions. Word has length 77 [2018-02-04 17:01:48,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:48,336 INFO L432 AbstractCegarLoop]: Abstraction has 758 states and 863 transitions. [2018-02-04 17:01:48,336 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-04 17:01:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 863 transitions. [2018-02-04 17:01:48,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 17:01:48,337 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:48,337 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:48,337 INFO L371 AbstractCegarLoop]: === Iteration 95 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:48,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2035296389, now seen corresponding path program 1 times [2018-02-04 17:01:48,338 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:48,348 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:48,898 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:48,898 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 17:01:48,898 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:48,899 INFO L182 omatonBuilderFactory]: Interpolants [76383#false, 76382#true, 76385#(= main_~head~0.offset 0), 76384#(= 0 |main_#t~malloc0.offset|), 76387#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 76386#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 76389#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 76388#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 76391#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 76390#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 76393#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~state~0 0)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 76392#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 76395#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~state~0 0)) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 76394#(and (not (= main_~state~0 0)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 76397#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~state~0 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 76396#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0)), 76399#(and (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 76398#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 76401#(and (or (not (= main_~head~0.offset |main_#t~mem13.offset|)) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) (+ |main_#t~mem13.offset| 4)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (= main_~head~0.offset |main_#t~mem13.offset|)) (= main_~head~0.offset 0)), 76400#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 76403#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (not |main_#t~short18|)) (= main_~head~0.offset 0)), 76402#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem14| 0)))) (= main_~head~0.offset 0)), 76405#(not (= |main_#t~mem20.offset| 0)), 76404#(and (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (= main_~head~0.offset 0)), 76407#(not (= main_~head~0.offset 0)), 76406#(not (= 0 main_~x~0.offset))] [2018-02-04 17:01:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:48,899 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 17:01:48,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 17:01:48,899 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:01:48,899 INFO L87 Difference]: Start difference. First operand 758 states and 863 transitions. Second operand 26 states. [2018-02-04 17:01:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:50,160 INFO L93 Difference]: Finished difference Result 909 states and 1030 transitions. [2018-02-04 17:01:50,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-02-04 17:01:50,160 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 77 [2018-02-04 17:01:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:50,162 INFO L225 Difference]: With dead ends: 909 [2018-02-04 17:01:50,162 INFO L226 Difference]: Without dead ends: 901 [2018-02-04 17:01:50,162 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=433, Invalid=2647, Unknown=0, NotChecked=0, Total=3080 [2018-02-04 17:01:50,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2018-02-04 17:01:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 779. [2018-02-04 17:01:50,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2018-02-04 17:01:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 886 transitions. [2018-02-04 17:01:50,166 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 886 transitions. Word has length 77 [2018-02-04 17:01:50,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:50,166 INFO L432 AbstractCegarLoop]: Abstraction has 779 states and 886 transitions. [2018-02-04 17:01:50,166 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 17:01:50,166 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 886 transitions. [2018-02-04 17:01:50,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 17:01:50,167 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:50,167 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:50,167 INFO L371 AbstractCegarLoop]: === Iteration 96 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:50,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1978460263, now seen corresponding path program 2 times [2018-02-04 17:01:50,167 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:50,174 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:50,689 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:50,690 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 17:01:50,690 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:50,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:50,690 INFO L182 omatonBuilderFactory]: Interpolants [78157#false, 78156#true, 78159#(= main_~head~0.offset 0), 78158#(= 0 |main_#t~malloc0.offset|), 78161#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 78160#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 78163#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 78162#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 78165#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 78164#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 78167#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 78166#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 78169#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0)), 78168#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 78171#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 78170#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 78173#(and (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 78172#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 78175#(and (or (not (= main_~head~0.offset |main_#t~mem13.offset|)) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) (+ |main_#t~mem13.offset| 4)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (= main_~head~0.offset |main_#t~mem13.offset|)) (= main_~head~0.offset 0)), 78174#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 78177#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (not |main_#t~short18|)) (= main_~head~0.offset 0)), 78176#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem14| 0)))) (= main_~head~0.offset 0)), 78179#(not (= |main_#t~mem20.offset| 0)), 78178#(and (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (= main_~head~0.offset 0)), 78181#(not (= main_~head~0.offset 0)), 78180#(not (= 0 main_~x~0.offset))] [2018-02-04 17:01:50,690 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:50,690 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 17:01:50,690 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 17:01:50,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:01:50,690 INFO L87 Difference]: Start difference. First operand 779 states and 886 transitions. Second operand 26 states. [2018-02-04 17:01:51,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:51,956 INFO L93 Difference]: Finished difference Result 909 states and 1028 transitions. [2018-02-04 17:01:51,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-02-04 17:01:51,956 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 77 [2018-02-04 17:01:51,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:51,957 INFO L225 Difference]: With dead ends: 909 [2018-02-04 17:01:51,957 INFO L226 Difference]: Without dead ends: 901 [2018-02-04 17:01:51,957 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=427, Invalid=2653, Unknown=0, NotChecked=0, Total=3080 [2018-02-04 17:01:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2018-02-04 17:01:51,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 700. [2018-02-04 17:01:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2018-02-04 17:01:51,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 793 transitions. [2018-02-04 17:01:51,961 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 793 transitions. Word has length 77 [2018-02-04 17:01:51,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:51,961 INFO L432 AbstractCegarLoop]: Abstraction has 700 states and 793 transitions. [2018-02-04 17:01:51,961 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 17:01:51,961 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 793 transitions. [2018-02-04 17:01:51,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 17:01:51,962 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:51,962 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:51,962 INFO L371 AbstractCegarLoop]: === Iteration 97 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:51,962 INFO L82 PathProgramCache]: Analyzing trace with hash -536817783, now seen corresponding path program 5 times [2018-02-04 17:01:51,962 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:51,967 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:52,302 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:52,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 17:01:52,303 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:52,303 INFO L182 omatonBuilderFactory]: Interpolants [79872#(= 1 (select |#valid| |main_#t~mem13.base|)), 79851#true, 79853#(= (select |#valid| main_~head~0.base) 1), 79852#false, 79855#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 79854#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 79857#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 79856#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 79859#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 79858#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 79861#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 79860#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 79863#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 79862#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 79865#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))))), 79864#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 79867#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 79866#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))), 79869#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 79868#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 79871#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 79870#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)))] [2018-02-04 17:01:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:52,303 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 17:01:52,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 17:01:52,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:01:52,303 INFO L87 Difference]: Start difference. First operand 700 states and 793 transitions. Second operand 22 states. [2018-02-04 17:01:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:53,329 INFO L93 Difference]: Finished difference Result 783 states and 881 transitions. [2018-02-04 17:01:53,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-04 17:01:53,330 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 77 [2018-02-04 17:01:53,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:53,330 INFO L225 Difference]: With dead ends: 783 [2018-02-04 17:01:53,330 INFO L226 Difference]: Without dead ends: 783 [2018-02-04 17:01:53,331 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=1824, Unknown=0, NotChecked=0, Total=2070 [2018-02-04 17:01:53,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2018-02-04 17:01:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 700. [2018-02-04 17:01:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2018-02-04 17:01:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 790 transitions. [2018-02-04 17:01:53,334 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 790 transitions. Word has length 77 [2018-02-04 17:01:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:53,334 INFO L432 AbstractCegarLoop]: Abstraction has 700 states and 790 transitions. [2018-02-04 17:01:53,334 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 17:01:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 790 transitions. [2018-02-04 17:01:53,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 17:01:53,335 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:53,335 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:53,335 INFO L371 AbstractCegarLoop]: === Iteration 98 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:53,335 INFO L82 PathProgramCache]: Analyzing trace with hash -536817782, now seen corresponding path program 5 times [2018-02-04 17:01:53,335 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:53,341 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:53,744 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:53,744 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 17:01:53,744 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:53,744 INFO L182 omatonBuilderFactory]: Interpolants [81409#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 81408#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 81411#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 81410#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= 8 (select |#length| |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 81413#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 81412#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 81415#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81414#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81417#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 81416#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 81419#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))), 81418#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 81421#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 81420#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 81423#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 81422#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 81425#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0)), 81424#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 81405#false, 81404#true, 81407#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 81406#(= (select |#valid| main_~head~0.base) 1)] [2018-02-04 17:01:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:53,744 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 17:01:53,744 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 17:01:53,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2018-02-04 17:01:53,745 INFO L87 Difference]: Start difference. First operand 700 states and 790 transitions. Second operand 22 states. [2018-02-04 17:01:54,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:54,878 INFO L93 Difference]: Finished difference Result 782 states and 878 transitions. [2018-02-04 17:01:54,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-04 17:01:54,878 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 77 [2018-02-04 17:01:54,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:54,878 INFO L225 Difference]: With dead ends: 782 [2018-02-04 17:01:54,878 INFO L226 Difference]: Without dead ends: 782 [2018-02-04 17:01:54,878 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=176, Invalid=1306, Unknown=0, NotChecked=0, Total=1482 [2018-02-04 17:01:54,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2018-02-04 17:01:54,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 655. [2018-02-04 17:01:54,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2018-02-04 17:01:54,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 739 transitions. [2018-02-04 17:01:54,881 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 739 transitions. Word has length 77 [2018-02-04 17:01:54,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:54,882 INFO L432 AbstractCegarLoop]: Abstraction has 655 states and 739 transitions. [2018-02-04 17:01:54,882 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 17:01:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 739 transitions. [2018-02-04 17:01:54,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-04 17:01:54,882 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:54,882 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:54,882 INFO L371 AbstractCegarLoop]: === Iteration 99 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:54,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1569028706, now seen corresponding path program 1 times [2018-02-04 17:01:54,883 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:54,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:55,507 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:55,507 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-04 17:01:55,507 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:55,507 INFO L182 omatonBuilderFactory]: Interpolants [82897#true, 82899#(= |main_#t~malloc0.offset| 0), 82898#false, 82901#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 82900#(= main_~head~0.offset 0), 82903#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 82902#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 82905#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 82904#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 82907#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 82906#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 82909#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 82908#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 82911#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 82910#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 82913#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 82912#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= (select |#valid| main_~head~0.base) 0)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 82915#(and (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 82914#(and (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 82917#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 82916#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (or (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))) (= |main_#t~malloc4.base| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))))), 82919#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))))), 82918#(and (or (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset |main_#t~mem6.offset|)), 82921#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 82920#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 82923#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 82922#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 82924#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:01:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:55,507 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-04 17:01:55,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-04 17:01:55,508 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2018-02-04 17:01:55,508 INFO L87 Difference]: Start difference. First operand 655 states and 739 transitions. Second operand 28 states. [2018-02-04 17:01:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:01:57,146 INFO L93 Difference]: Finished difference Result 670 states and 749 transitions. [2018-02-04 17:01:57,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-04 17:01:57,146 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 79 [2018-02-04 17:01:57,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:01:57,147 INFO L225 Difference]: With dead ends: 670 [2018-02-04 17:01:57,147 INFO L226 Difference]: Without dead ends: 670 [2018-02-04 17:01:57,147 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=470, Invalid=2610, Unknown=0, NotChecked=0, Total=3080 [2018-02-04 17:01:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2018-02-04 17:01:57,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 655. [2018-02-04 17:01:57,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2018-02-04 17:01:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 738 transitions. [2018-02-04 17:01:57,150 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 738 transitions. Word has length 79 [2018-02-04 17:01:57,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:01:57,150 INFO L432 AbstractCegarLoop]: Abstraction has 655 states and 738 transitions. [2018-02-04 17:01:57,150 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-04 17:01:57,150 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 738 transitions. [2018-02-04 17:01:57,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-04 17:01:57,150 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:01:57,150 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:01:57,150 INFO L371 AbstractCegarLoop]: === Iteration 100 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:01:57,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1569028707, now seen corresponding path program 1 times [2018-02-04 17:01:57,151 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:01:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:01:57,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:01:58,132 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:58,133 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:01:58,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-04 17:01:58,133 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:01:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:58,133 INFO L182 omatonBuilderFactory]: Interpolants [84307#false, 84306#true, 84309#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 84308#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 84311#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 84310#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 84313#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) main_~head~0.offset) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 84312#(and (= |main_#t~malloc4.offset| main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 84315#(and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 84314#(and (= 8 (select |#length| main_~head~0.base)) (= |main_#t~mem6.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 84317#(and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 84316#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 84319#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= 8 (select |#length| |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset) |main_#t~mem6.base|)), 84318#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 84321#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 84320#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 84323#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 84322#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= 8 (select |#length| main_~x~0.base)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 84325#(and (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) 1) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 84324#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) 1) (= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 84327#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (or (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 84326#(and (or (and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset |main_#t~malloc4.offset|)) (not (= main_~head~0.base |main_#t~malloc4.base|))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))), 84329#(or (and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset))), 84328#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (or (and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset |main_#t~mem6.offset|)) (not (= main_~head~0.base |main_#t~mem6.base|)))), 84331#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 84330#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 84333#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 84332#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 84334#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0))] [2018-02-04 17:01:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:01:58,133 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-04 17:01:58,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-04 17:01:58,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2018-02-04 17:01:58,134 INFO L87 Difference]: Start difference. First operand 655 states and 738 transitions. Second operand 29 states. [2018-02-04 17:02:00,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:00,272 INFO L93 Difference]: Finished difference Result 807 states and 908 transitions. [2018-02-04 17:02:00,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-02-04 17:02:00,272 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 79 [2018-02-04 17:02:00,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:00,272 INFO L225 Difference]: With dead ends: 807 [2018-02-04 17:02:00,272 INFO L226 Difference]: Without dead ends: 807 [2018-02-04 17:02:00,273 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2018-02-04 17:02:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2018-02-04 17:02:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 714. [2018-02-04 17:02:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2018-02-04 17:02:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 805 transitions. [2018-02-04 17:02:00,276 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 805 transitions. Word has length 79 [2018-02-04 17:02:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:00,276 INFO L432 AbstractCegarLoop]: Abstraction has 714 states and 805 transitions. [2018-02-04 17:02:00,276 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-04 17:02:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 805 transitions. [2018-02-04 17:02:00,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-02-04 17:02:00,277 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:00,277 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:00,277 INFO L371 AbstractCegarLoop]: === Iteration 101 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:00,277 INFO L82 PathProgramCache]: Analyzing trace with hash 449510479, now seen corresponding path program 1 times [2018-02-04 17:02:00,277 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:00,283 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:01,263 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:01,263 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-04 17:02:01,263 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:01,264 INFO L182 omatonBuilderFactory]: Interpolants [85917#false, 85916#true, 85919#(and (not (= 0 main_~head~0.base)) (= main_~head~0.offset 0)), 85918#(and (not (= 0 |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 85921#(and (= main_~x~0.offset 0) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 85920#(and (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (= main_~head~0.offset 0)), 85923#(and (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 85922#(and (= main_~x~0.offset 0) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 85925#(and (= main_~head~0.offset main_~x~0.offset) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 85924#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) |main_#t~mem6.base|) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0)), 85927#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85926#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) 0)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset 0) (= 1 main_~state~0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 85929#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85928#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85931#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.base|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.offset|) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85930#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85933#(and (or (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) |main_#t~mem13.offset|) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset |main_#t~mem13.offset|)) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ |main_#t~mem13.offset| 4)))) (not (= main_~head~0.offset |main_#t~mem13.offset|))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85932#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85935#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not |main_#t~short18|)) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85934#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (or (= 1 |main_#t~mem14|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85937#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85936#(and (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 85939#(or (not (= 0 main_~x~0.offset)) (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~x~0.base)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0) main_~x~0.base) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base)))), 85938#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0) |main_#t~mem20.base|)) (or (not (= 0 |main_#t~mem20.base|)) (not (= 0 |main_#t~mem20.offset|))) (not (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0))) (or (not (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (not (= |main_#t~mem20.offset| 0))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) 0) |main_#t~mem20.base|)), 85941#(or (not (= 0 main_~head~0.offset)) (and (not (= 0 |main_#t~mem22.base|)) (not (= 0 |main_#t~mem22.offset|)) (not (= |main_#t~mem22.base| main_~head~0.base)) (not (= 0 main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem22.base|) 0)))), 85940#(or (not (= 0 main_~head~0.offset)) (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0)) (not (= 0 main_~head~0.base)))), 85943#(and (or (not (= main_~x~0.offset 0)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))) (not (= 0 main_~x~0.base))), 85942#(or (and (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base)) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))) (not (= 0 main_~head~0.offset))), 85945#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem22.base|)) (not (= main_~head~0.offset 0))) (not (= 0 main_~head~0.base))), 85944#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset 0))) (not (= 0 main_~head~0.base))), 85947#(= 1 (select |#valid| main_~x~0.base)), 85946#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)) (not (= main_~head~0.offset 0))) (not (= 0 main_~head~0.base)))] [2018-02-04 17:02:01,264 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:01,264 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-04 17:02:01,264 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-04 17:02:01,264 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=901, Unknown=0, NotChecked=0, Total=992 [2018-02-04 17:02:01,264 INFO L87 Difference]: Start difference. First operand 714 states and 805 transitions. Second operand 32 states. [2018-02-04 17:02:02,206 WARN L146 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 81 DAG size of output 54 [2018-02-04 17:02:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:04,106 INFO L93 Difference]: Finished difference Result 993 states and 1113 transitions. [2018-02-04 17:02:04,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-02-04 17:02:04,107 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 80 [2018-02-04 17:02:04,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:04,107 INFO L225 Difference]: With dead ends: 993 [2018-02-04 17:02:04,107 INFO L226 Difference]: Without dead ends: 993 [2018-02-04 17:02:04,107 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=683, Invalid=4867, Unknown=0, NotChecked=0, Total=5550 [2018-02-04 17:02:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2018-02-04 17:02:04,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 811. [2018-02-04 17:02:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2018-02-04 17:02:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 918 transitions. [2018-02-04 17:02:04,113 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 918 transitions. Word has length 80 [2018-02-04 17:02:04,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:04,113 INFO L432 AbstractCegarLoop]: Abstraction has 811 states and 918 transitions. [2018-02-04 17:02:04,113 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-04 17:02:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 918 transitions. [2018-02-04 17:02:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-02-04 17:02:04,113 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:04,114 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:04,114 INFO L371 AbstractCegarLoop]: === Iteration 102 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:04,114 INFO L82 PathProgramCache]: Analyzing trace with hash 449510480, now seen corresponding path program 1 times [2018-02-04 17:02:04,114 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:04,119 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:04,785 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:04,785 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:04,785 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 17:02:04,785 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:04,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:04,785 INFO L182 omatonBuilderFactory]: Interpolants [87839#false, 87838#true, 87841#(= main_~head~0.offset 0), 87840#(= |main_#t~malloc0.offset| 0), 87843#(and (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 87842#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 87845#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 87844#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 87847#(and (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) 0))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 87846#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0)), 87849#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 87848#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 87851#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 87850#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 87853#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 87852#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.base|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.offset|) (= main_~head~0.offset 0)), 87855#(or (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 87854#(and (or (= |main_#t~mem13.offset| 0) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) |main_#t~mem13.offset|) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0))) (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0))) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem13.offset| 0)))), 87857#(or (and (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (= (select |#length| main_~x~0.base) 8) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select |#memory_$Pointer$.base| main_~head~0.base))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))))) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0) (not (= (select |#length| main_~x~0.base) 8))))), 87856#(or (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select |#memory_$Pointer$.base| main_~head~0.base))) (= 8 (select |#length| |main_#t~mem19.base|)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= |main_#t~mem19.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0))), 87859#(or (not (= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 0)) (and (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))))) (not (= |main_#t~mem20.offset| 0))), 87858#(or (and (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)) (and (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select |#memory_$Pointer$.base| main_~head~0.base))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))))))), 87861#(or (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0)) (and (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (not (= main_~head~0.offset 0))), 87860#(or (not (= 0 main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0)) (and (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 87863#(or (not (= main_~x~0.offset 0)) (and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset 0))), 87862#(or (not (= |main_#t~mem22.offset| 0)) (and (<= (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) |main_#t~mem22.offset|) 8) (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem22.base|) |main_#t~mem22.offset|))) (<= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) |main_#t~mem22.offset|))) (not (= main_~head~0.offset 0))), 87865#(or (and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset 0))), 87864#(or (not (= main_~x~0.offset 0)) (and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 87867#(or (and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)) (not (= main_~head~0.offset 0))), 87866#(or (and (<= 0 |main_#t~mem22.offset|) (<= (+ |main_#t~mem22.offset| 8) (select |#length| |main_#t~mem22.base|))) (not (= main_~head~0.offset 0))), 87868#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-02-04 17:02:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:04,786 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 17:02:04,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 17:02:04,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2018-02-04 17:02:04,786 INFO L87 Difference]: Start difference. First operand 811 states and 918 transitions. Second operand 31 states. [2018-02-04 17:02:06,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:06,132 INFO L93 Difference]: Finished difference Result 940 states and 1060 transitions. [2018-02-04 17:02:06,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-04 17:02:06,132 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 80 [2018-02-04 17:02:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:06,133 INFO L225 Difference]: With dead ends: 940 [2018-02-04 17:02:06,133 INFO L226 Difference]: Without dead ends: 940 [2018-02-04 17:02:06,133 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=452, Invalid=3454, Unknown=0, NotChecked=0, Total=3906 [2018-02-04 17:02:06,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2018-02-04 17:02:06,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 873. [2018-02-04 17:02:06,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2018-02-04 17:02:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 992 transitions. [2018-02-04 17:02:06,139 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 992 transitions. Word has length 80 [2018-02-04 17:02:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:06,139 INFO L432 AbstractCegarLoop]: Abstraction has 873 states and 992 transitions. [2018-02-04 17:02:06,139 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 17:02:06,139 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 992 transitions. [2018-02-04 17:02:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-02-04 17:02:06,140 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:06,140 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:06,140 INFO L371 AbstractCegarLoop]: === Iteration 103 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:06,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1550699659, now seen corresponding path program 1 times [2018-02-04 17:02:06,141 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:06,150 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:06,858 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:06,858 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 17:02:06,858 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:06,859 INFO L182 omatonBuilderFactory]: Interpolants [89747#false, 89746#true, 89749#(= main_~head~0.offset 0), 89748#(= |main_#t~malloc0.offset| 0), 89751#(and (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 89750#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 89753#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 89752#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 89755#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) 0)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 89754#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 89757#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~head~0.offset 0)), 89756#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 89759#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~head~0.offset 0)), 89758#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) |main_#t~mem11.base|) (= main_~head~0.offset 0)), 89761#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~head~0.offset 0)), 89760#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~head~0.offset 0)), 89763#(and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0)) (+ main_~head~0.offset 4)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 89762#(and (= |main_#t~mem19.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0)) (+ main_~head~0.offset 4)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= |main_#t~mem19.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~head~0.offset 0)), 89765#(and (or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 |main_#t~mem14|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= main_~head~0.offset 0)), 89764#(and (or (and (or (not (= (select |#memory_$Pointer$.offset| main_~head~0.base) (select |#memory_$Pointer$.offset| main_~x~0.base))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset |main_#t~mem13.offset|)) (= main_~head~0.offset 0) (or (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0)) (+ |main_#t~mem13.offset| 4)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~head~0.offset |main_#t~mem13.offset|)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 89767#(and (or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 89766#(and (or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not |main_#t~short18|)) (= main_~head~0.offset 0)), 89769#(or (not (= 0 |main_#t~mem20.offset|)) (not (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 89768#(and (= main_~head~0.offset 0) (or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 89771#(or (not (= 0 main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 89770#(or (not (= 0 main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 89773#(or (not (= 0 main_~head~0.offset)) (not (= 0 main_~x~0.offset))), 89772#(or (not (= 0 main_~head~0.offset)) (not (= 0 |main_#t~mem22.offset|))), 89775#(not (= main_~head~0.offset 0)), 89774#(not (= 0 main_~x~0.offset))] [2018-02-04 17:02:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:06,859 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 17:02:06,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 17:02:06,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:02:06,860 INFO L87 Difference]: Start difference. First operand 873 states and 992 transitions. Second operand 30 states. [2018-02-04 17:02:08,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:08,309 INFO L93 Difference]: Finished difference Result 1029 states and 1157 transitions. [2018-02-04 17:02:08,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-02-04 17:02:08,309 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 81 [2018-02-04 17:02:08,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:08,310 INFO L225 Difference]: With dead ends: 1029 [2018-02-04 17:02:08,310 INFO L226 Difference]: Without dead ends: 1001 [2018-02-04 17:02:08,310 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=570, Invalid=3986, Unknown=0, NotChecked=0, Total=4556 [2018-02-04 17:02:08,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2018-02-04 17:02:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 772. [2018-02-04 17:02:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2018-02-04 17:02:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 874 transitions. [2018-02-04 17:02:08,314 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 874 transitions. Word has length 81 [2018-02-04 17:02:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:08,314 INFO L432 AbstractCegarLoop]: Abstraction has 772 states and 874 transitions. [2018-02-04 17:02:08,314 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 17:02:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 874 transitions. [2018-02-04 17:02:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-02-04 17:02:08,315 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:08,315 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:08,315 INFO L371 AbstractCegarLoop]: === Iteration 104 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:08,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1348293175, now seen corresponding path program 1 times [2018-02-04 17:02:08,316 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:08,326 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:08,820 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:08,820 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:08,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-04 17:02:08,820 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:08,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:08,820 INFO L182 omatonBuilderFactory]: Interpolants [91653#true, 91655#(= 1 (select |#valid| main_~head~0.base)), 91654#false, 91657#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 91656#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 91659#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 91658#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 91661#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base))), 91660#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 91663#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 91662#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 91665#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)))), 91664#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))), 91667#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 91666#(and (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base |main_#t~malloc4.base|))), 91669#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)))), 91668#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))), 91671#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)))), 91670#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))), 91673#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 91672#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)))), 91675#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 91674#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem13.base|)) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 91677#(and (or (not (= 0 |main_#t~mem20.base|)) (not (= 0 |main_#t~mem20.offset|))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (or (not (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (not (= |main_#t~mem20.offset| 0)))), 91676#(and (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 91679#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset 0))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 91678#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (not (= main_~x~0.offset 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (or (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base)))), 91681#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)) (not (= main_~head~0.offset 0))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 91680#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem22.base|)) (not (= main_~head~0.offset 0))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))), 91682#(= 1 (select |#valid| main_~x~0.base))] [2018-02-04 17:02:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:08,821 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 17:02:08,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 17:02:08,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=782, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:02:08,821 INFO L87 Difference]: Start difference. First operand 772 states and 874 transitions. Second operand 30 states. [2018-02-04 17:02:10,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:10,229 INFO L93 Difference]: Finished difference Result 796 states and 893 transitions. [2018-02-04 17:02:10,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-04 17:02:10,230 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 84 [2018-02-04 17:02:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:10,230 INFO L225 Difference]: With dead ends: 796 [2018-02-04 17:02:10,230 INFO L226 Difference]: Without dead ends: 796 [2018-02-04 17:02:10,231 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=377, Invalid=3045, Unknown=0, NotChecked=0, Total=3422 [2018-02-04 17:02:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-02-04 17:02:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 780. [2018-02-04 17:02:10,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-02-04 17:02:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 881 transitions. [2018-02-04 17:02:10,234 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 881 transitions. Word has length 84 [2018-02-04 17:02:10,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:10,234 INFO L432 AbstractCegarLoop]: Abstraction has 780 states and 881 transitions. [2018-02-04 17:02:10,234 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 17:02:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 881 transitions. [2018-02-04 17:02:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-02-04 17:02:10,235 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:10,235 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:10,235 INFO L371 AbstractCegarLoop]: === Iteration 105 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:10,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1348293174, now seen corresponding path program 1 times [2018-02-04 17:02:10,236 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:10,241 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-02-04 17:02:10,382 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:10,382 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-02-04 17:02:10,382 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:10,382 INFO L182 omatonBuilderFactory]: Interpolants [93328#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 (+ main_~x~0.offset 4))), 93317#true, 93319#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 93318#false, 93321#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 93320#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 93323#(and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) main_~x~0.offset) (<= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 93322#(and (= |main_#t~mem19.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.offset|) (<= |main_#t~mem19.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 93325#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 4)) (<= (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 8) (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 93324#(and (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (<= 0 (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 4))), 93327#(and (<= 0 (+ |main_#t~mem22.offset| 4)) (<= (+ |main_#t~mem22.offset| 8) (select |#length| |main_#t~mem22.base|))), 93326#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 4)))] [2018-02-04 17:02:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-02-04 17:02:10,383 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 17:02:10,383 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 17:02:10,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-02-04 17:02:10,383 INFO L87 Difference]: Start difference. First operand 780 states and 881 transitions. Second operand 12 states. [2018-02-04 17:02:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:10,747 INFO L93 Difference]: Finished difference Result 849 states and 954 transitions. [2018-02-04 17:02:10,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 17:02:10,747 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2018-02-04 17:02:10,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:10,748 INFO L225 Difference]: With dead ends: 849 [2018-02-04 17:02:10,748 INFO L226 Difference]: Without dead ends: 849 [2018-02-04 17:02:10,748 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:02:10,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2018-02-04 17:02:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 780. [2018-02-04 17:02:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-02-04 17:02:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 878 transitions. [2018-02-04 17:02:10,752 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 878 transitions. Word has length 84 [2018-02-04 17:02:10,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:10,752 INFO L432 AbstractCegarLoop]: Abstraction has 780 states and 878 transitions. [2018-02-04 17:02:10,752 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 17:02:10,752 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 878 transitions. [2018-02-04 17:02:10,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-02-04 17:02:10,752 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:10,752 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:10,753 INFO L371 AbstractCegarLoop]: === Iteration 106 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:10,753 INFO L82 PathProgramCache]: Analyzing trace with hash -559345337, now seen corresponding path program 2 times [2018-02-04 17:02:10,753 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:10,759 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:11,759 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:11,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 17:02:11,760 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:11,760 INFO L182 omatonBuilderFactory]: Interpolants [94983#false, 94982#true, 94985#(and (not (= 0 main_~head~0.base)) (= main_~head~0.offset 0)), 94984#(and (not (= 0 |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 94987#(and (= main_~x~0.offset 0) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 94986#(and (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (= main_~head~0.offset 0)), 94989#(and (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 94988#(and (= main_~x~0.offset 0) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 94991#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) 0)) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 94990#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) |main_#t~mem6.base|) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 main_~state~0) (not (= 0 main_~head~0.base)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0)), 94993#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 94992#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) 0)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= 1 main_~state~0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 94995#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 94994#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 94997#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.base|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.offset|) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 94996#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 94999#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem19.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 94998#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (+ main_~head~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 95001#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= 1 |main_#t~mem12|)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 95000#(and (or (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (not (= main_~head~0.offset main_~x~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 95003#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0) |main_#t~mem20.base|)) (or (not (= 0 |main_#t~mem20.base|)) (not (= 0 |main_#t~mem20.offset|))) (not (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0))) (or (not (= 0 |main_#t~mem20.offset|)) (not (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) 0) |main_#t~mem20.base|)), 95002#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 95005#(or (not (= 0 main_~head~0.offset)) (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (not (= 0 main_~head~0.base)))), 95004#(or (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~x~0.base)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0) main_~x~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))) (not (= 0 main_~x~0.offset))), 95007#(or (and (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base)) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))) (not (= 0 main_~head~0.offset))), 95006#(or (not (= 0 main_~head~0.offset)) (and (not (= 0 |main_#t~mem22.base|)) (not (= 0 |main_#t~mem22.offset|)) (not (= |main_#t~mem22.base| main_~head~0.base)) (not (= 0 main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem22.base|) 0)))), 95009#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset 0))) (not (= 0 main_~head~0.base))), 95008#(and (or (not (= main_~x~0.offset 0)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))) (not (= 0 main_~x~0.base))), 95011#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)) (not (= main_~head~0.offset 0))) (not (= 0 main_~head~0.base))), 95010#(and (or (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem22.base|)) (not (= main_~head~0.offset 0))) (not (= 0 main_~head~0.base))), 95012#(= 1 (select |#valid| main_~x~0.base))] [2018-02-04 17:02:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:11,760 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 17:02:11,760 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 17:02:11,760 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2018-02-04 17:02:11,761 INFO L87 Difference]: Start difference. First operand 780 states and 878 transitions. Second operand 31 states. [2018-02-04 17:02:14,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:14,018 INFO L93 Difference]: Finished difference Result 962 states and 1077 transitions. [2018-02-04 17:02:14,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-02-04 17:02:14,018 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 84 [2018-02-04 17:02:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:14,018 INFO L225 Difference]: With dead ends: 962 [2018-02-04 17:02:14,018 INFO L226 Difference]: Without dead ends: 962 [2018-02-04 17:02:14,019 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=615, Invalid=4355, Unknown=0, NotChecked=0, Total=4970 [2018-02-04 17:02:14,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2018-02-04 17:02:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 845. [2018-02-04 17:02:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2018-02-04 17:02:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 951 transitions. [2018-02-04 17:02:14,022 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 951 transitions. Word has length 84 [2018-02-04 17:02:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:14,022 INFO L432 AbstractCegarLoop]: Abstraction has 845 states and 951 transitions. [2018-02-04 17:02:14,022 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 17:02:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 951 transitions. [2018-02-04 17:02:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-02-04 17:02:14,023 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:14,023 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:14,023 INFO L371 AbstractCegarLoop]: === Iteration 107 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:14,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1256962707, now seen corresponding path program 1 times [2018-02-04 17:02:14,023 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:14,030 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:14,664 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:14,664 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 17:02:14,664 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:14,664 INFO L182 omatonBuilderFactory]: Interpolants [96901#false, 96900#true, 96903#(= main_~head~0.offset 0), 96902#(= |main_#t~malloc0.offset| 0), 96905#(and (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 96904#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 96907#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 96906#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 96909#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) 0)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 96908#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 96911#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= main_~head~0.offset 0)), 96910#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 96913#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.offset main_~x~0.offset))) (= main_~head~0.offset 0)), 96912#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) |main_#t~mem11.base|) (= main_~head~0.offset 0)), 96915#(and (or (= main_~head~0.offset main_~x~0.offset) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0))) (not (= main_~head~0.offset main_~x~0.offset)))), 96914#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0))) (not (= main_~head~0.offset main_~x~0.offset))) (or (= main_~head~0.offset main_~x~0.offset) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 96917#(and (= main_~head~0.offset 0) (or (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0)) (+ main_~head~0.offset 4)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.base|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.offset|)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 96916#(and (or (= main_~head~0.offset main_~x~0.offset) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) 0))) (not (= main_~head~0.offset main_~x~0.offset))) (= main_~head~0.offset 0)), 96919#(and (or (and (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 0 |main_#t~mem19.offset|)) (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= 0 (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4))))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 96918#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) 0)) (+ main_~head~0.offset 4)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= main_~head~0.offset 0)), 96921#(and (= main_~head~0.offset 0) (or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= 0 |main_#t~mem12|))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))))), 96920#(and (or (and (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset main_~x~0.offset)) (or (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 96923#(or (not (= 0 |main_#t~mem20.offset|)) (not (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 96922#(and (= main_~head~0.offset 0) (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))))), 96925#(or (not (= 0 main_~head~0.offset)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 96924#(or (not (= 0 main_~x~0.offset)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 96927#(or (not (= 0 main_~head~0.offset)) (not (= 0 main_~x~0.offset))), 96926#(or (not (= 0 main_~head~0.offset)) (not (= 0 |main_#t~mem22.offset|))), 96929#(not (= 0 main_~head~0.offset)), 96928#(not (= 0 main_~x~0.offset))] [2018-02-04 17:02:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:14,665 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 17:02:14,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 17:02:14,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:02:14,665 INFO L87 Difference]: Start difference. First operand 845 states and 951 transitions. Second operand 30 states. [2018-02-04 17:02:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:15,877 INFO L93 Difference]: Finished difference Result 900 states and 1002 transitions. [2018-02-04 17:02:15,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-02-04 17:02:15,878 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 85 [2018-02-04 17:02:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:15,878 INFO L225 Difference]: With dead ends: 900 [2018-02-04 17:02:15,878 INFO L226 Difference]: Without dead ends: 872 [2018-02-04 17:02:15,879 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=464, Invalid=3196, Unknown=0, NotChecked=0, Total=3660 [2018-02-04 17:02:15,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2018-02-04 17:02:15,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 780. [2018-02-04 17:02:15,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-02-04 17:02:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 877 transitions. [2018-02-04 17:02:15,882 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 877 transitions. Word has length 85 [2018-02-04 17:02:15,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:15,882 INFO L432 AbstractCegarLoop]: Abstraction has 780 states and 877 transitions. [2018-02-04 17:02:15,882 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 17:02:15,882 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 877 transitions. [2018-02-04 17:02:15,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-02-04 17:02:15,882 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:15,882 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:15,882 INFO L371 AbstractCegarLoop]: === Iteration 108 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:15,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1370386774, now seen corresponding path program 1 times [2018-02-04 17:02:15,883 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:15,891 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:16,422 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:16,422 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-04 17:02:16,422 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:16,423 INFO L182 omatonBuilderFactory]: Interpolants [98689#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= main_~head~0.offset |main_#t~mem6.offset|)), 98688#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 98691#(or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 98690#(and (or (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))) (= main_~head~0.offset 0)), 98693#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|)) (and (= main_~head~0.base |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.offset 0)))), 98692#(or (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0))), 98695#(and (or (= |main_#t~mem13.offset| 0) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= |main_#t~mem13.offset| 0)))), 98694#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (and (= main_~head~0.base main_~x~0.base) (= main_~head~0.offset 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)))), 98697#(or (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))), 98696#(or (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))), 98699#(or (not (= main_~x~0.offset 0)) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 98698#(or (and (<= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (<= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 0)) (not (= |main_#t~mem20.offset| 0))), 98701#(or (and (<= 0 |main_#t~mem22.offset|) (<= |main_#t~mem22.offset| 0)) (not (= main_~head~0.offset 0))), 98700#(or (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.offset 0))), 98703#(and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)), 98702#(or (and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)) (not (= main_~head~0.offset 0))), 98673#false, 98672#true, 98675#(= main_~head~0.offset 0), 98674#(= |main_#t~malloc0.offset| 0), 98677#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 98676#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 98679#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 98678#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 98681#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 98680#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 98683#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 98682#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 98685#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 98684#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 98687#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 98686#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0))] [2018-02-04 17:02:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:16,423 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-04 17:02:16,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-04 17:02:16,423 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=863, Unknown=0, NotChecked=0, Total=992 [2018-02-04 17:02:16,423 INFO L87 Difference]: Start difference. First operand 780 states and 877 transitions. Second operand 32 states. [2018-02-04 17:02:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:17,988 INFO L93 Difference]: Finished difference Result 868 states and 975 transitions. [2018-02-04 17:02:17,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-02-04 17:02:17,988 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 86 [2018-02-04 17:02:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:17,989 INFO L225 Difference]: With dead ends: 868 [2018-02-04 17:02:17,989 INFO L226 Difference]: Without dead ends: 865 [2018-02-04 17:02:17,989 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=755, Invalid=3667, Unknown=0, NotChecked=0, Total=4422 [2018-02-04 17:02:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2018-02-04 17:02:17,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 853. [2018-02-04 17:02:17,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2018-02-04 17:02:17,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 965 transitions. [2018-02-04 17:02:17,992 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 965 transitions. Word has length 86 [2018-02-04 17:02:17,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:17,992 INFO L432 AbstractCegarLoop]: Abstraction has 853 states and 965 transitions. [2018-02-04 17:02:17,992 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-04 17:02:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 965 transitions. [2018-02-04 17:02:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-02-04 17:02:17,993 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:17,993 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:17,993 INFO L371 AbstractCegarLoop]: === Iteration 109 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:17,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1370386827, now seen corresponding path program 1 times [2018-02-04 17:02:17,993 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:18,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:18,426 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:18,426 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-04 17:02:18,426 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:18,427 INFO L182 omatonBuilderFactory]: Interpolants [100495#true, 100497#(= |main_#t~malloc0.offset| 0), 100496#false, 100499#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 100498#(= main_~head~0.offset 0), 100501#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 100500#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 100503#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 100502#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 100505#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 100504#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 100507#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 100506#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 100509#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 100508#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 100511#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 100510#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 100513#(and (or (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))) (= main_~head~0.offset 0)), 100512#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= main_~head~0.offset |main_#t~mem6.offset|)), 100515#(or (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0))), 100514#(or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 100517#(or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0))), 100516#(or (and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0))) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0))), 100519#(or (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 100518#(or (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0))), 100521#(or (= 0 |main_#t~mem22.offset|) (not (= main_~head~0.offset 0))), 100520#(or (and (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))) (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= main_~x~0.offset main_~head~0.offset))), 100523#(= main_~x~0.offset 0), 100522#(or (= main_~x~0.offset 0) (not (= main_~head~0.offset 0))), 100524#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-02-04 17:02:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:18,427 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 17:02:18,427 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 17:02:18,427 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:02:18,427 INFO L87 Difference]: Start difference. First operand 853 states and 965 transitions. Second operand 30 states. [2018-02-04 17:02:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:20,112 INFO L93 Difference]: Finished difference Result 865 states and 970 transitions. [2018-02-04 17:02:20,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-02-04 17:02:20,112 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 86 [2018-02-04 17:02:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:20,113 INFO L225 Difference]: With dead ends: 865 [2018-02-04 17:02:20,113 INFO L226 Difference]: Without dead ends: 853 [2018-02-04 17:02:20,113 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1221 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=802, Invalid=3754, Unknown=0, NotChecked=0, Total=4556 [2018-02-04 17:02:20,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2018-02-04 17:02:20,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 805. [2018-02-04 17:02:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-02-04 17:02:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 906 transitions. [2018-02-04 17:02:20,130 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 906 transitions. Word has length 86 [2018-02-04 17:02:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:20,130 INFO L432 AbstractCegarLoop]: Abstraction has 805 states and 906 transitions. [2018-02-04 17:02:20,131 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 17:02:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 906 transitions. [2018-02-04 17:02:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-02-04 17:02:20,131 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:20,131 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:20,131 INFO L371 AbstractCegarLoop]: === Iteration 110 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:20,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1965622232, now seen corresponding path program 4 times [2018-02-04 17:02:20,132 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:20,136 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:20,423 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:20,423 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 17:02:20,423 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:20,424 INFO L182 omatonBuilderFactory]: Interpolants [102273#(= (select |#valid| main_~head~0.base) 1), 102272#false, 102275#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 102274#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 102277#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102276#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 102279#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 102278#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 102281#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 102280#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 102283#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 102282#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 102285#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 102284#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 102287#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 102286#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 102289#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 102288#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 102291#(<= 0 |main_#t~mem19.offset|), 102290#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 102293#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 102292#(<= 0 main_~x~0.offset), 102271#true] [2018-02-04 17:02:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:20,424 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 17:02:20,424 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 17:02:20,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2018-02-04 17:02:20,424 INFO L87 Difference]: Start difference. First operand 805 states and 906 transitions. Second operand 23 states. [2018-02-04 17:02:21,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:21,495 INFO L93 Difference]: Finished difference Result 952 states and 1061 transitions. [2018-02-04 17:02:21,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-04 17:02:21,496 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 86 [2018-02-04 17:02:21,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:21,496 INFO L225 Difference]: With dead ends: 952 [2018-02-04 17:02:21,496 INFO L226 Difference]: Without dead ends: 952 [2018-02-04 17:02:21,497 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=508, Invalid=2684, Unknown=0, NotChecked=0, Total=3192 [2018-02-04 17:02:21,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2018-02-04 17:02:21,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 863. [2018-02-04 17:02:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2018-02-04 17:02:21,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 972 transitions. [2018-02-04 17:02:21,500 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 972 transitions. Word has length 86 [2018-02-04 17:02:21,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:21,500 INFO L432 AbstractCegarLoop]: Abstraction has 863 states and 972 transitions. [2018-02-04 17:02:21,500 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 17:02:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 972 transitions. [2018-02-04 17:02:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-02-04 17:02:21,501 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:21,501 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:21,501 INFO L371 AbstractCegarLoop]: === Iteration 111 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:21,501 INFO L82 PathProgramCache]: Analyzing trace with hash -804746992, now seen corresponding path program 6 times [2018-02-04 17:02:21,501 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:21,506 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:21,757 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:21,757 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 17:02:21,757 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:21,758 INFO L182 omatonBuilderFactory]: Interpolants [104193#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 104192#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 104195#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 104194#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 104197#(= 1 (select |#valid| |main_#t~mem13.base|)), 104196#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 104177#true, 104179#(= (select |#valid| main_~head~0.base) 1), 104178#false, 104181#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 104180#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 104183#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 104182#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 104185#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 104184#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 104187#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 104186#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 104189#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))))), 104188#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 104191#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 104190#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))))] [2018-02-04 17:02:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:21,758 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 17:02:21,758 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 17:02:21,758 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2018-02-04 17:02:21,758 INFO L87 Difference]: Start difference. First operand 863 states and 972 transitions. Second operand 21 states. [2018-02-04 17:02:22,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:22,635 INFO L93 Difference]: Finished difference Result 909 states and 1017 transitions. [2018-02-04 17:02:22,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-04 17:02:22,635 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 87 [2018-02-04 17:02:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:22,636 INFO L225 Difference]: With dead ends: 909 [2018-02-04 17:02:22,636 INFO L226 Difference]: Without dead ends: 909 [2018-02-04 17:02:22,636 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=351, Invalid=1719, Unknown=0, NotChecked=0, Total=2070 [2018-02-04 17:02:22,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2018-02-04 17:02:22,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 863. [2018-02-04 17:02:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2018-02-04 17:02:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 970 transitions. [2018-02-04 17:02:22,640 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 970 transitions. Word has length 87 [2018-02-04 17:02:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:22,640 INFO L432 AbstractCegarLoop]: Abstraction has 863 states and 970 transitions. [2018-02-04 17:02:22,640 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 17:02:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 970 transitions. [2018-02-04 17:02:22,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-02-04 17:02:22,641 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:22,641 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:22,641 INFO L371 AbstractCegarLoop]: === Iteration 112 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:22,641 INFO L82 PathProgramCache]: Analyzing trace with hash -804746991, now seen corresponding path program 6 times [2018-02-04 17:02:22,642 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:22,649 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:22,992 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:22,992 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-04 17:02:22,992 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:22,992 INFO L182 omatonBuilderFactory]: Interpolants [106021#false, 106020#true, 106023#(= 0 main_~head~0.offset), 106022#(= 0 |main_#t~malloc0.offset|), 106025#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 106024#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 106027#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 106026#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 106029#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 106028#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 106031#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 106030#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 106033#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 106032#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 106035#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 106034#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))) (= |main_#t~mem19.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))))), 106037#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (<= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 106036#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 106039#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 106038#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 106041#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 106040#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 106043#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 106042#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 106044#(and (= |main_#t~mem13.offset| 0) (<= 8 (select |#length| |main_#t~mem13.base|)))] [2018-02-04 17:02:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:22,993 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 17:02:22,993 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 17:02:22,993 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2018-02-04 17:02:22,993 INFO L87 Difference]: Start difference. First operand 863 states and 970 transitions. Second operand 25 states. [2018-02-04 17:02:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:24,158 INFO L93 Difference]: Finished difference Result 908 states and 1015 transitions. [2018-02-04 17:02:24,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 17:02:24,158 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 87 [2018-02-04 17:02:24,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:24,159 INFO L225 Difference]: With dead ends: 908 [2018-02-04 17:02:24,159 INFO L226 Difference]: Without dead ends: 908 [2018-02-04 17:02:24,159 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=301, Invalid=1861, Unknown=0, NotChecked=0, Total=2162 [2018-02-04 17:02:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2018-02-04 17:02:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 837. [2018-02-04 17:02:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2018-02-04 17:02:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 941 transitions. [2018-02-04 17:02:24,162 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 941 transitions. Word has length 87 [2018-02-04 17:02:24,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:24,163 INFO L432 AbstractCegarLoop]: Abstraction has 837 states and 941 transitions. [2018-02-04 17:02:24,163 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 17:02:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 941 transitions. [2018-02-04 17:02:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-02-04 17:02:24,163 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:24,163 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:24,163 INFO L371 AbstractCegarLoop]: === Iteration 113 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:24,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1814440199, now seen corresponding path program 2 times [2018-02-04 17:02:24,164 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:24,169 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:24,395 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:24,395 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 17:02:24,395 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:24,395 INFO L182 omatonBuilderFactory]: Interpolants [107841#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 107840#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))), 107843#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 107842#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 107845#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 107844#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 107847#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 107846#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 107849#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 107848#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 107851#(<= 0 main_~x~0.offset), 107850#(<= 0 |main_#t~mem19.offset|), 107852#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 107835#false, 107834#true, 107837#(= main_~head~0.offset 0), 107836#(= 0 |main_#t~malloc0.offset|), 107839#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 107838#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:02:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:24,395 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 17:02:24,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 17:02:24,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:02:24,396 INFO L87 Difference]: Start difference. First operand 837 states and 941 transitions. Second operand 19 states. [2018-02-04 17:02:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:25,087 INFO L93 Difference]: Finished difference Result 917 states and 1018 transitions. [2018-02-04 17:02:25,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 17:02:25,087 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 88 [2018-02-04 17:02:25,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:25,088 INFO L225 Difference]: With dead ends: 917 [2018-02-04 17:02:25,088 INFO L226 Difference]: Without dead ends: 917 [2018-02-04 17:02:25,088 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=471, Invalid=1785, Unknown=0, NotChecked=0, Total=2256 [2018-02-04 17:02:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2018-02-04 17:02:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 852. [2018-02-04 17:02:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2018-02-04 17:02:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 956 transitions. [2018-02-04 17:02:25,091 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 956 transitions. Word has length 88 [2018-02-04 17:02:25,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:25,091 INFO L432 AbstractCegarLoop]: Abstraction has 852 states and 956 transitions. [2018-02-04 17:02:25,092 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 17:02:25,092 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 956 transitions. [2018-02-04 17:02:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-02-04 17:02:25,092 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:25,092 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:25,092 INFO L371 AbstractCegarLoop]: === Iteration 114 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:25,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1613265001, now seen corresponding path program 1 times [2018-02-04 17:02:25,092 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:25,103 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:26,079 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:26,079 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:26,079 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-02-04 17:02:26,079 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:26,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:26,080 INFO L182 omatonBuilderFactory]: Interpolants [109697#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))), 109696#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~state~0 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 109699#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 109698#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= |main_#t~malloc4.base| main_~x~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 109701#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~state~0 0)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 109700#(and (not (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 109703#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 109702#(and (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 109705#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 109704#(and (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 109707#(and (or (not (= (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4)) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem19.offset|))), 109706#(or (not (= 1 (select |#valid| |main_#t~mem13.base|))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (and (not (= (select (select |#memory_int| |main_#t~mem13.base|) (+ main_~head~0.offset 4)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)))), 109709#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem12| 0))) (= main_~head~0.offset 0)), 109708#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 main_~x~0.offset)) (or (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 109711#(not (= 0 |main_#t~mem20.offset|)), 109710#(and (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 109713#(not (= 0 main_~head~0.offset)), 109712#(not (= 0 main_~x~0.offset)), 109681#false, 109680#true, 109683#(= main_~head~0.offset 0), 109682#(= 0 |main_#t~malloc0.offset|), 109685#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 109684#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 109687#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 109686#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 109689#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 109688#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 109691#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~malloc4.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 109690#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 109693#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (not (= |main_#t~mem6.base| main_~head~0.base)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0)), 109692#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 109695#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))), 109694#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (or (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.offset main_~x~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0))] [2018-02-04 17:02:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:26,080 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-04 17:02:26,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-04 17:02:26,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=992, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 17:02:26,080 INFO L87 Difference]: Start difference. First operand 852 states and 956 transitions. Second operand 34 states. [2018-02-04 17:02:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:28,040 INFO L93 Difference]: Finished difference Result 1105 states and 1235 transitions. [2018-02-04 17:02:28,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-02-04 17:02:28,041 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2018-02-04 17:02:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:28,041 INFO L225 Difference]: With dead ends: 1105 [2018-02-04 17:02:28,042 INFO L226 Difference]: Without dead ends: 1097 [2018-02-04 17:02:28,042 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=559, Invalid=4133, Unknown=0, NotChecked=0, Total=4692 [2018-02-04 17:02:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-02-04 17:02:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 901. [2018-02-04 17:02:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 901 states. [2018-02-04 17:02:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1010 transitions. [2018-02-04 17:02:28,046 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1010 transitions. Word has length 88 [2018-02-04 17:02:28,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:28,047 INFO L432 AbstractCegarLoop]: Abstraction has 901 states and 1010 transitions. [2018-02-04 17:02:28,047 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-04 17:02:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1010 transitions. [2018-02-04 17:02:28,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-02-04 17:02:28,047 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:28,047 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:28,047 INFO L371 AbstractCegarLoop]: === Iteration 115 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:28,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1857285329, now seen corresponding path program 2 times [2018-02-04 17:02:28,048 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:28,056 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:28,689 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:28,689 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 17:02:28,689 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:28,690 INFO L182 omatonBuilderFactory]: Interpolants [111809#(or (and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 111808#(and (= 0 main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (= main_~head~0.offset |main_#t~mem6.offset|)), 111811#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0))), 111810#(or (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (not (= main_~x~0.base main_~head~0.base)))), 111813#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 111812#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 111815#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 111814#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 111817#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 111816#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 111819#(<= 0 main_~x~0.offset), 111818#(<= 0 |main_#t~mem19.offset|), 111820#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 111791#false, 111790#true, 111793#(= main_~head~0.offset 0), 111792#(= |main_#t~malloc0.offset| 0), 111795#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111794#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 111797#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111796#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 111799#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 111798#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 111801#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 111800#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111803#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|) (= |main_#t~mem6.offset| 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 111802#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111805#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= main_~x~0.offset 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111804#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 111807#(and (= 0 main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 111806#(and (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (= 0 |main_#t~malloc4.offset|))] [2018-02-04 17:02:28,690 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:28,690 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 17:02:28,690 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 17:02:28,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=827, Unknown=0, NotChecked=0, Total=930 [2018-02-04 17:02:28,690 INFO L87 Difference]: Start difference. First operand 901 states and 1010 transitions. Second operand 31 states. [2018-02-04 17:02:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:30,623 INFO L93 Difference]: Finished difference Result 1069 states and 1188 transitions. [2018-02-04 17:02:30,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-02-04 17:02:30,623 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 88 [2018-02-04 17:02:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:30,624 INFO L225 Difference]: With dead ends: 1069 [2018-02-04 17:02:30,624 INFO L226 Difference]: Without dead ends: 1069 [2018-02-04 17:02:30,624 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1467 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=948, Invalid=4904, Unknown=0, NotChecked=0, Total=5852 [2018-02-04 17:02:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2018-02-04 17:02:30,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 936. [2018-02-04 17:02:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2018-02-04 17:02:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1053 transitions. [2018-02-04 17:02:30,628 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1053 transitions. Word has length 88 [2018-02-04 17:02:30,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:30,628 INFO L432 AbstractCegarLoop]: Abstraction has 936 states and 1053 transitions. [2018-02-04 17:02:30,628 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 17:02:30,628 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1053 transitions. [2018-02-04 17:02:30,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-02-04 17:02:30,629 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:30,629 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:30,629 INFO L371 AbstractCegarLoop]: === Iteration 116 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:30,629 INFO L82 PathProgramCache]: Analyzing trace with hash -971451332, now seen corresponding path program 5 times [2018-02-04 17:02:30,629 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:30,634 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:31,078 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:31,078 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 17:02:31,078 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:31,079 INFO L182 omatonBuilderFactory]: Interpolants [113921#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 113920#(= (select |#valid| main_~head~0.base) 1), 113923#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 113922#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 113925#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 113924#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 113927#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 113926#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 113929#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 113928#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 113931#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 113930#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 113933#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 113932#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 113935#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 113934#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 113937#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 113936#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 113939#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 113938#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 113941#(<= 0 |main_#t~mem19.offset|), 113940#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 113943#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 113942#(<= 0 main_~x~0.offset), 113919#false, 113918#true] [2018-02-04 17:02:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:31,079 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 17:02:31,079 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 17:02:31,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2018-02-04 17:02:31,079 INFO L87 Difference]: Start difference. First operand 936 states and 1053 transitions. Second operand 26 states. [2018-02-04 17:02:32,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:32,639 INFO L93 Difference]: Finished difference Result 1162 states and 1298 transitions. [2018-02-04 17:02:32,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-02-04 17:02:32,639 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 88 [2018-02-04 17:02:32,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:32,640 INFO L225 Difference]: With dead ends: 1162 [2018-02-04 17:02:32,640 INFO L226 Difference]: Without dead ends: 1162 [2018-02-04 17:02:32,640 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=475, Invalid=3307, Unknown=0, NotChecked=0, Total=3782 [2018-02-04 17:02:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2018-02-04 17:02:32,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 991. [2018-02-04 17:02:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2018-02-04 17:02:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1116 transitions. [2018-02-04 17:02:32,644 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1116 transitions. Word has length 88 [2018-02-04 17:02:32,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:32,644 INFO L432 AbstractCegarLoop]: Abstraction has 991 states and 1116 transitions. [2018-02-04 17:02:32,644 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 17:02:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1116 transitions. [2018-02-04 17:02:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-02-04 17:02:32,645 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:32,645 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:32,645 INFO L371 AbstractCegarLoop]: === Iteration 117 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:32,645 INFO L82 PathProgramCache]: Analyzing trace with hash 413071377, now seen corresponding path program 2 times [2018-02-04 17:02:32,645 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:32,650 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:32,880 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:32,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-04 17:02:32,880 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:32,881 INFO L182 omatonBuilderFactory]: Interpolants [116169#true, 116171#(= 0 |main_#t~malloc0.offset|), 116170#false, 116173#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 116172#(= main_~head~0.offset 0), 116175#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 116174#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 116177#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))))), 116176#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))))), 116179#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 116178#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))))), 116181#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 116180#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 116183#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 116182#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 116185#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 116184#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 116186#(= 1 (select |#valid| |main_#t~mem13.base|))] [2018-02-04 17:02:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:32,881 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 17:02:32,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 17:02:32,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2018-02-04 17:02:32,881 INFO L87 Difference]: Start difference. First operand 991 states and 1116 transitions. Second operand 18 states. [2018-02-04 17:02:33,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:33,587 INFO L93 Difference]: Finished difference Result 1006 states and 1128 transitions. [2018-02-04 17:02:33,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-04 17:02:33,587 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 89 [2018-02-04 17:02:33,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:33,588 INFO L225 Difference]: With dead ends: 1006 [2018-02-04 17:02:33,588 INFO L226 Difference]: Without dead ends: 1006 [2018-02-04 17:02:33,588 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=1223, Unknown=0, NotChecked=0, Total=1482 [2018-02-04 17:02:33,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2018-02-04 17:02:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 992. [2018-02-04 17:02:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2018-02-04 17:02:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1118 transitions. [2018-02-04 17:02:33,592 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1118 transitions. Word has length 89 [2018-02-04 17:02:33,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:33,592 INFO L432 AbstractCegarLoop]: Abstraction has 992 states and 1118 transitions. [2018-02-04 17:02:33,592 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 17:02:33,592 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1118 transitions. [2018-02-04 17:02:33,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-02-04 17:02:33,593 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:33,593 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:33,593 INFO L371 AbstractCegarLoop]: === Iteration 118 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:33,593 INFO L82 PathProgramCache]: Analyzing trace with hash 413071378, now seen corresponding path program 2 times [2018-02-04 17:02:33,593 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:33,598 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:33,871 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:33,871 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-02-04 17:02:33,871 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:33,871 INFO L182 omatonBuilderFactory]: Interpolants [118241#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 118240#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 118243#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0)), 118242#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 118227#true, 118229#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 118228#false, 118231#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 118230#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 118233#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))))), 118232#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.offset (+ main_~x~0.offset 4)))), 118235#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))))), 118234#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))))), 118237#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 118236#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))))), 118239#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 118238#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))))] [2018-02-04 17:02:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:33,871 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 17:02:33,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 17:02:33,872 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2018-02-04 17:02:33,872 INFO L87 Difference]: Start difference. First operand 992 states and 1118 transitions. Second operand 17 states. [2018-02-04 17:02:34,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:34,587 INFO L93 Difference]: Finished difference Result 1005 states and 1127 transitions. [2018-02-04 17:02:34,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 17:02:34,587 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 89 [2018-02-04 17:02:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:34,588 INFO L225 Difference]: With dead ends: 1005 [2018-02-04 17:02:34,588 INFO L226 Difference]: Without dead ends: 1005 [2018-02-04 17:02:34,588 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2018-02-04 17:02:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2018-02-04 17:02:34,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 992. [2018-02-04 17:02:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2018-02-04 17:02:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1117 transitions. [2018-02-04 17:02:34,592 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1117 transitions. Word has length 89 [2018-02-04 17:02:34,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:34,592 INFO L432 AbstractCegarLoop]: Abstraction has 992 states and 1117 transitions. [2018-02-04 17:02:34,592 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 17:02:34,592 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1117 transitions. [2018-02-04 17:02:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-02-04 17:02:34,593 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:34,593 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:34,593 INFO L371 AbstractCegarLoop]: === Iteration 119 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:34,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1741270407, now seen corresponding path program 2 times [2018-02-04 17:02:34,593 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:34,603 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:35,355 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:35,355 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-04 17:02:35,355 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:35,356 INFO L182 omatonBuilderFactory]: Interpolants [120271#true, 120273#(= |main_#t~malloc0.offset| 0), 120272#false, 120275#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 120274#(= main_~head~0.offset 0), 120277#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset |main_#t~malloc4.offset|) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 120276#(and (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 120279#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 120278#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 120281#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 120280#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))), 120283#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 120282#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 120285#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))), 120284#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 120287#(and (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~malloc4.offset|)), 120286#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 120289#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) |main_#t~mem6.base|) (= main_~head~0.offset |main_#t~mem6.offset|)), 120288#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 120291#(or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 120290#(or (and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 120293#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))), 120292#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) 0))) (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 120295#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 120294#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 120297#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 120296#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 120299#(= 1 (select |#valid| |main_#t~mem13.base|)), 120298#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))] [2018-02-04 17:02:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:35,356 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-04 17:02:35,356 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-04 17:02:35,356 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2018-02-04 17:02:35,357 INFO L87 Difference]: Start difference. First operand 992 states and 1117 transitions. Second operand 29 states. [2018-02-04 17:02:37,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:37,867 INFO L93 Difference]: Finished difference Result 1068 states and 1197 transitions. [2018-02-04 17:02:37,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-02-04 17:02:37,867 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 89 [2018-02-04 17:02:37,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:37,867 INFO L225 Difference]: With dead ends: 1068 [2018-02-04 17:02:37,868 INFO L226 Difference]: Without dead ends: 1068 [2018-02-04 17:02:37,868 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1098 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=592, Invalid=4378, Unknown=0, NotChecked=0, Total=4970 [2018-02-04 17:02:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2018-02-04 17:02:37,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1011. [2018-02-04 17:02:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1011 states. [2018-02-04 17:02:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1138 transitions. [2018-02-04 17:02:37,872 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1138 transitions. Word has length 89 [2018-02-04 17:02:37,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:37,872 INFO L432 AbstractCegarLoop]: Abstraction has 1011 states and 1138 transitions. [2018-02-04 17:02:37,872 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-04 17:02:37,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1138 transitions. [2018-02-04 17:02:37,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-02-04 17:02:37,872 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:37,873 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:37,873 INFO L371 AbstractCegarLoop]: === Iteration 120 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:37,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1741270408, now seen corresponding path program 2 times [2018-02-04 17:02:37,873 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:37,880 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:38,813 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:38,813 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-04 17:02:38,813 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:38,814 INFO L182 omatonBuilderFactory]: Interpolants [122463#true, 122465#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 122464#false, 122467#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 122466#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 122469#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 122468#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 122471#(and (= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 122470#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 122473#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 122472#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 122475#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 122474#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 122477#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 122476#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 122479#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 122478#(and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 122481#(and (= 8 (select |#length| main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) |main_#t~mem6.base|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset |main_#t~mem6.offset|)), 122480#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~head~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 122483#(and (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0))) (or (and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 122482#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (or (and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)))) (and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)))), 122485#(and (= 0 |main_#t~mem11.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)))))), 122484#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))))), 122487#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 122486#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= 0 main_~x~0.offset)), 122489#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 122488#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 122491#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 122490#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 122492#(and (= |main_#t~mem13.offset| 0) (= 8 (select |#length| |main_#t~mem13.base|)))] [2018-02-04 17:02:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:38,814 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 17:02:38,814 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 17:02:38,814 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:02:38,814 INFO L87 Difference]: Start difference. First operand 1011 states and 1138 transitions. Second operand 30 states. [2018-02-04 17:02:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:40,864 INFO L93 Difference]: Finished difference Result 1063 states and 1191 transitions. [2018-02-04 17:02:40,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-04 17:02:40,864 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 89 [2018-02-04 17:02:40,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:40,864 INFO L225 Difference]: With dead ends: 1063 [2018-02-04 17:02:40,864 INFO L226 Difference]: Without dead ends: 1063 [2018-02-04 17:02:40,865 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=417, Invalid=2889, Unknown=0, NotChecked=0, Total=3306 [2018-02-04 17:02:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2018-02-04 17:02:40,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1011. [2018-02-04 17:02:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1011 states. [2018-02-04 17:02:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1136 transitions. [2018-02-04 17:02:40,868 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1136 transitions. Word has length 89 [2018-02-04 17:02:40,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:40,868 INFO L432 AbstractCegarLoop]: Abstraction has 1011 states and 1136 transitions. [2018-02-04 17:02:40,868 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 17:02:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1136 transitions. [2018-02-04 17:02:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-02-04 17:02:40,869 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:40,869 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:40,869 INFO L371 AbstractCegarLoop]: === Iteration 121 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:40,869 INFO L82 PathProgramCache]: Analyzing trace with hash -50220164, now seen corresponding path program 7 times [2018-02-04 17:02:40,870 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:40,875 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:41,245 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:41,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-04 17:02:41,246 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:41,246 INFO L182 omatonBuilderFactory]: Interpolants [124641#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 124640#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 124643#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 124642#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 124645#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 124644#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 124646#(= 1 (select |#valid| |main_#t~mem13.base|)), 124623#true, 124625#(= (select |#valid| main_~head~0.base) 1), 124624#false, 124627#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 124626#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 124629#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 124628#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 124631#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 124630#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 124633#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 124632#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|))), 124635#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 124634#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 124637#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))))), 124636#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 124639#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 124638#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))))))] [2018-02-04 17:02:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:41,246 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 17:02:41,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 17:02:41,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:02:41,246 INFO L87 Difference]: Start difference. First operand 1011 states and 1136 transitions. Second operand 24 states. [2018-02-04 17:02:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:42,406 INFO L93 Difference]: Finished difference Result 1095 states and 1225 transitions. [2018-02-04 17:02:42,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 17:02:42,406 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 89 [2018-02-04 17:02:42,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:42,407 INFO L225 Difference]: With dead ends: 1095 [2018-02-04 17:02:42,407 INFO L226 Difference]: Without dead ends: 1095 [2018-02-04 17:02:42,407 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=290, Invalid=2260, Unknown=0, NotChecked=0, Total=2550 [2018-02-04 17:02:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-02-04 17:02:42,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1011. [2018-02-04 17:02:42,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1011 states. [2018-02-04 17:02:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1133 transitions. [2018-02-04 17:02:42,411 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1133 transitions. Word has length 89 [2018-02-04 17:02:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:42,411 INFO L432 AbstractCegarLoop]: Abstraction has 1011 states and 1133 transitions. [2018-02-04 17:02:42,412 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 17:02:42,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1133 transitions. [2018-02-04 17:02:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-02-04 17:02:42,412 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:42,412 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:42,412 INFO L371 AbstractCegarLoop]: === Iteration 122 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:42,412 INFO L82 PathProgramCache]: Analyzing trace with hash -50220163, now seen corresponding path program 7 times [2018-02-04 17:02:42,413 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:42,418 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:42,922 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:42,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-04 17:02:42,923 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:42,923 INFO L182 omatonBuilderFactory]: Interpolants [126817#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 126816#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 126819#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 126818#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.offset|) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 126821#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 126820#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 126823#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 126822#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))))))), 126825#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 126824#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 126827#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 126826#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 126829#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 126828#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 126830#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0)), 126807#true, 126809#(= (select |#valid| main_~head~0.base) 1), 126808#false, 126811#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 126810#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 126813#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 126812#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 126815#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 126814#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)))] [2018-02-04 17:02:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:42,923 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 17:02:42,923 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 17:02:42,923 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2018-02-04 17:02:42,923 INFO L87 Difference]: Start difference. First operand 1011 states and 1133 transitions. Second operand 24 states. [2018-02-04 17:02:44,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:44,101 INFO L93 Difference]: Finished difference Result 1094 states and 1222 transitions. [2018-02-04 17:02:44,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-04 17:02:44,101 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 89 [2018-02-04 17:02:44,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:44,101 INFO L225 Difference]: With dead ends: 1094 [2018-02-04 17:02:44,101 INFO L226 Difference]: Without dead ends: 1094 [2018-02-04 17:02:44,102 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=189, Invalid=1533, Unknown=0, NotChecked=0, Total=1722 [2018-02-04 17:02:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2018-02-04 17:02:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 950. [2018-02-04 17:02:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2018-02-04 17:02:44,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1065 transitions. [2018-02-04 17:02:44,105 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1065 transitions. Word has length 89 [2018-02-04 17:02:44,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:44,105 INFO L432 AbstractCegarLoop]: Abstraction has 950 states and 1065 transitions. [2018-02-04 17:02:44,105 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 17:02:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1065 transitions. [2018-02-04 17:02:44,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-02-04 17:02:44,106 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:44,106 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:44,106 INFO L371 AbstractCegarLoop]: === Iteration 123 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:44,106 INFO L82 PathProgramCache]: Analyzing trace with hash -344254525, now seen corresponding path program 1 times [2018-02-04 17:02:44,106 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:44,118 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:44,919 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:44,919 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:44,919 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-04 17:02:44,919 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:44,920 INFO L182 omatonBuilderFactory]: Interpolants [128911#true, 128913#(= |main_#t~malloc0.offset| 0), 128912#false, 128915#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 128914#(= main_~head~0.offset 0), 128917#(and (= |main_#t~malloc4.offset| main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 128916#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 128919#(and (= |main_#t~mem6.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 128918#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) main_~head~0.offset) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 128921#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 128920#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 128923#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 128922#(and (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 128925#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 128924#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))), 128927#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))), 128926#(and (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))), 128929#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 128928#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= main_~head~0.offset 0) (= main_~head~0.offset |main_#t~mem6.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))), 128931#(or (and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)))), 128930#(or (and (or (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (and (= 0 main_~head~0.offset) (= main_~head~0.offset |main_#t~malloc4.offset|))) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (and (= 0 main_~head~0.offset) (= main_~head~0.offset |main_#t~malloc4.offset|) (= main_~head~0.base |main_#t~malloc4.base|))), 128933#(or (and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (or (and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)))) (not (= main_~x~0.base main_~head~0.base)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset))), 128932#(or (and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (or (and (= 0 main_~head~0.offset) (= main_~head~0.offset |main_#t~mem6.offset|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (and (= 0 main_~head~0.offset) (= main_~head~0.base |main_#t~mem6.base|) (= main_~head~0.offset |main_#t~mem6.offset|))), 128935#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 128934#(or (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))) (not (= main_~x~0.base main_~head~0.base)))), 128937#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 128936#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)), 128939#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 128938#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 128941#(<= 0 main_~x~0.offset), 128940#(<= 0 |main_#t~mem19.offset|), 128942#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-02-04 17:02:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:44,920 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-04 17:02:44,920 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-04 17:02:44,920 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2018-02-04 17:02:44,920 INFO L87 Difference]: Start difference. First operand 950 states and 1065 transitions. Second operand 32 states. [2018-02-04 17:02:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:46,729 INFO L93 Difference]: Finished difference Result 1053 states and 1171 transitions. [2018-02-04 17:02:46,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-04 17:02:46,729 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 90 [2018-02-04 17:02:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:46,730 INFO L225 Difference]: With dead ends: 1053 [2018-02-04 17:02:46,730 INFO L226 Difference]: Without dead ends: 1053 [2018-02-04 17:02:46,730 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=813, Invalid=3477, Unknown=0, NotChecked=0, Total=4290 [2018-02-04 17:02:46,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2018-02-04 17:02:46,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 967. [2018-02-04 17:02:46,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2018-02-04 17:02:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1089 transitions. [2018-02-04 17:02:46,735 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1089 transitions. Word has length 90 [2018-02-04 17:02:46,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:46,735 INFO L432 AbstractCegarLoop]: Abstraction has 967 states and 1089 transitions. [2018-02-04 17:02:46,735 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-04 17:02:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1089 transitions. [2018-02-04 17:02:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-02-04 17:02:46,736 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:46,736 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:46,736 INFO L371 AbstractCegarLoop]: === Iteration 124 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:46,736 INFO L82 PathProgramCache]: Analyzing trace with hash 466082006, now seen corresponding path program 2 times [2018-02-04 17:02:46,737 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:46,748 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:47,854 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:47,854 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:47,854 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-02-04 17:02:47,854 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:47,855 INFO L182 omatonBuilderFactory]: Interpolants [131031#true, 131033#(= 0 |main_#t~malloc0.offset|), 131032#false, 131035#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 131034#(= main_~head~0.offset 0), 131037#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~state~0 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 131036#(and (= main_~head~0.offset main_~x~0.offset) (= main_~state~0 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 131039#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~state~0 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 131038#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) main_~state~0) (= (select |#valid| main_~x~0.base) 1)), 131041#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~state~0 1) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 131040#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~state~0 1) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 131043#(and (= (select |#valid| main_~head~0.base) main_~state~0) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~state~0 1) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 131042#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~state~0 1) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 131045#(and (= (select |#valid| main_~head~0.base) main_~state~0) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~state~0 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0)), 131044#(and (= (select |#valid| main_~head~0.base) main_~state~0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~state~0 1) (<= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 131047#(and (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (= (select |#valid| main_~head~0.base) main_~state~0) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~state~0 1) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 131046#(and (= (select |#valid| main_~head~0.base) main_~state~0) (or (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~head~0.offset main_~x~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~state~0 1) (= main_~head~0.offset 0)), 131049#(and (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 131048#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 131051#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 131050#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 131053#(and (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 131052#(and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0) (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)))), 131055#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= (select (select |#memory_int| |main_#t~mem11.base|) (+ main_~head~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (+ main_~head~0.offset 4)))), 131054#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 131057#(and (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 4)) (select (select |#memory_int| |main_#t~mem13.base|) (+ main_~head~0.offset 4)))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 131056#(and (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 131059#(or (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 4))) (not (= 0 |main_#t~mem20.offset|))), 131058#(and (= main_~head~0.offset 0) (or (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 131061#(or (= |main_#t~mem21| (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (not (= 0 main_~x~0.offset))), 131060#(or (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (not (= 0 main_~x~0.offset))), 131063#(or (not (= 0 main_~head~0.offset)) (not (= 0 (select (select |#memory_int| |main_#t~mem22.base|) (+ 0 4))))), 131062#(or (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 main_~x~0.offset)) (not (= 0 main_~head~0.offset)) (<= (+ main_~x~0.offset 1) 0)), 131065#(or (<= 1 main_~x~0.offset) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (<= (+ main_~x~0.offset 1) 0)), 131064#(or (<= 1 main_~x~0.offset) (not (= 0 main_~head~0.offset)) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (<= (+ main_~x~0.offset 1) 0)), 131067#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0)), 131066#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= 0 |main_#t~mem21|)))] [2018-02-04 17:02:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:47,855 INFO L409 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-02-04 17:02:47,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-02-04 17:02:47,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2018-02-04 17:02:47,855 INFO L87 Difference]: Start difference. First operand 967 states and 1089 transitions. Second operand 37 states. [2018-02-04 17:02:49,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:49,858 INFO L93 Difference]: Finished difference Result 1186 states and 1333 transitions. [2018-02-04 17:02:49,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-02-04 17:02:49,859 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 90 [2018-02-04 17:02:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:49,859 INFO L225 Difference]: With dead ends: 1186 [2018-02-04 17:02:49,860 INFO L226 Difference]: Without dead ends: 1174 [2018-02-04 17:02:49,860 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=663, Invalid=4887, Unknown=0, NotChecked=0, Total=5550 [2018-02-04 17:02:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2018-02-04 17:02:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 999. [2018-02-04 17:02:49,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2018-02-04 17:02:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1123 transitions. [2018-02-04 17:02:49,864 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1123 transitions. Word has length 90 [2018-02-04 17:02:49,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:49,864 INFO L432 AbstractCegarLoop]: Abstraction has 999 states and 1123 transitions. [2018-02-04 17:02:49,864 INFO L433 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-02-04 17:02:49,864 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1123 transitions. [2018-02-04 17:02:49,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-02-04 17:02:49,864 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:49,864 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:49,864 INFO L371 AbstractCegarLoop]: === Iteration 125 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:49,865 INFO L82 PathProgramCache]: Analyzing trace with hash -2081955627, now seen corresponding path program 1 times [2018-02-04 17:02:49,865 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:49,875 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:50,736 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:50,736 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 17:02:50,736 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:50,737 INFO L182 omatonBuilderFactory]: Interpolants [133330#false, 133331#(= |main_#t~malloc0.offset| 0), 133329#true, 133334#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 133335#(and (= |main_#t~malloc4.offset| main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 133332#(= main_~head~0.offset 0), 133333#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 133338#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 133339#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 133336#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) main_~head~0.offset) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 133337#(and (= |main_#t~mem6.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 133342#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset) |main_#t~mem6.base|)), 133343#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 133340#(and (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 133341#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 133346#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 133347#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= main_~head~0.offset |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset) |main_#t~mem6.base|))), 133344#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 133345#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 133350#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~x~0.base) 1)), 133351#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= main_~head~0.offset |main_#t~mem6.offset|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~head~0.offset) |main_#t~mem6.base|))), 133348#(and (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)), 133349#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset) |main_#t~malloc4.base|))), 133354#(or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 133355#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 133352#(or (and (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) main_~head~0.offset)))) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) main_~head~0.offset)) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 133353#(or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))) (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 133358#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 133359#(= 1 (select |#valid| |main_#t~mem13.base|)), 133356#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 133357#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)))] [2018-02-04 17:02:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:50,737 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 17:02:50,737 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 17:02:50,737 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=833, Unknown=0, NotChecked=0, Total=930 [2018-02-04 17:02:50,737 INFO L87 Difference]: Start difference. First operand 999 states and 1123 transitions. Second operand 31 states. [2018-02-04 17:02:53,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:53,050 INFO L93 Difference]: Finished difference Result 1228 states and 1377 transitions. [2018-02-04 17:02:53,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-02-04 17:02:53,050 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 91 [2018-02-04 17:02:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:53,051 INFO L225 Difference]: With dead ends: 1228 [2018-02-04 17:02:53,051 INFO L226 Difference]: Without dead ends: 1228 [2018-02-04 17:02:53,051 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1070 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=592, Invalid=4100, Unknown=0, NotChecked=0, Total=4692 [2018-02-04 17:02:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2018-02-04 17:02:53,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1025. [2018-02-04 17:02:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2018-02-04 17:02:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1154 transitions. [2018-02-04 17:02:53,056 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1154 transitions. Word has length 91 [2018-02-04 17:02:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:53,056 INFO L432 AbstractCegarLoop]: Abstraction has 1025 states and 1154 transitions. [2018-02-04 17:02:53,056 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 17:02:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1154 transitions. [2018-02-04 17:02:53,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-02-04 17:02:53,056 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:53,056 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:53,056 INFO L371 AbstractCegarLoop]: === Iteration 126 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:53,056 INFO L82 PathProgramCache]: Analyzing trace with hash -2081955626, now seen corresponding path program 1 times [2018-02-04 17:02:53,057 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:53,069 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:54,195 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:54,195 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-04 17:02:54,195 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:54,195 INFO L182 omatonBuilderFactory]: Interpolants [135690#false, 135691#(and (= (select |#length| |main_#t~malloc0.base|) 8) (= |main_#t~malloc0.offset| 0)), 135689#true, 135694#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 135695#(and (= (select |#length| main_~x~0.base) 8) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 135692#(and (= (select |#length| main_~head~0.base) 8) (= main_~head~0.offset 0)), 135693#(and (= (select |#length| main_~head~0.base) 8) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 135698#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~head~0.base) 8) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 135699#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~head~0.base) 8) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 135696#(and (= (select |#length| main_~x~0.base) 8) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 135697#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~head~0.base) 8) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 135702#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#length| main_~head~0.base) 8) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 135703#(and (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= (select |#length| main_~head~0.base) 8) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 135700#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~head~0.base) 8) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 135701#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#length| main_~head~0.base) 8) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 135706#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#length| main_~head~0.base) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 135707#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 8 (select |#length| |main_#t~mem6.base|)) (= main_~head~0.offset 0) (= (select |#length| main_~head~0.base) (select |#length| |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) |main_#t~mem6.base|)), 135704#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#length| main_~head~0.base) 8) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 135705#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select |#length| main_~head~0.base) (select |#length| |main_#t~malloc4.base|)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 135710#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= 0 main_~head~0.offset) (= (select |#length| main_~x~0.base) 8) (= (select |#length| main_~x~0.base) (select |#length| main_~head~0.base)) (= main_~head~0.offset |main_#t~malloc4.offset|) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))))), 135711#(and (= 0 main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= (select |#length| main_~x~0.base) 8) (= (select |#length| main_~x~0.base) (select |#length| main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 135708#(and (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (= (select |#length| main_~head~0.base) (select |#length| main_~x~0.base)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) 0)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 135709#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= (select |#length| main_~head~0.base) (select |#length| main_~x~0.base)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (not (= (select |#valid| main_~x~0.base) 0))), 135714#(or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))) (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))), 135715#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 135712#(and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset |main_#t~mem6.offset|) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 135713#(or (and (= 0 main_~head~0.offset) (<= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))))) (not (= main_~x~0.base main_~head~0.base)))), 135718#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 135719#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 135716#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|)))), 135717#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 135720#(and (= |main_#t~mem13.offset| 0) (<= 8 (select |#length| |main_#t~mem13.base|)))] [2018-02-04 17:02:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:54,196 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-04 17:02:54,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-04 17:02:54,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2018-02-04 17:02:54,196 INFO L87 Difference]: Start difference. First operand 1025 states and 1154 transitions. Second operand 32 states. [2018-02-04 17:02:56,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:56,640 INFO L93 Difference]: Finished difference Result 1227 states and 1375 transitions. [2018-02-04 17:02:56,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-04 17:02:56,640 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 91 [2018-02-04 17:02:56,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:56,641 INFO L225 Difference]: With dead ends: 1227 [2018-02-04 17:02:56,641 INFO L226 Difference]: Without dead ends: 1227 [2018-02-04 17:02:56,641 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 907 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=547, Invalid=3485, Unknown=0, NotChecked=0, Total=4032 [2018-02-04 17:02:56,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2018-02-04 17:02:56,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1025. [2018-02-04 17:02:56,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2018-02-04 17:02:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1152 transitions. [2018-02-04 17:02:56,646 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1152 transitions. Word has length 91 [2018-02-04 17:02:56,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:56,646 INFO L432 AbstractCegarLoop]: Abstraction has 1025 states and 1152 transitions. [2018-02-04 17:02:56,646 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-04 17:02:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1152 transitions. [2018-02-04 17:02:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-02-04 17:02:56,647 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:56,647 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:56,647 INFO L371 AbstractCegarLoop]: === Iteration 127 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:56,647 INFO L82 PathProgramCache]: Analyzing trace with hash -735520644, now seen corresponding path program 3 times [2018-02-04 17:02:56,647 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:56,656 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:02:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:57,685 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:02:57,685 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-02-04 17:02:57,685 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:02:57,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:57,686 INFO L182 omatonBuilderFactory]: Interpolants [138050#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~state~0 0)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 138051#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~state~0 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0)), 138048#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~state~0 0)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 138049#(and (not (= main_~state~0 0)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 138054#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= main_~head~0.offset main_~x~0.offset) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| main_~x~0.base) 1)), 138055#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 138052#(and (or (and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0))) (not (= main_~head~0.offset main_~x~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 138053#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~state~0 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 138058#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 138059#(and (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 138056#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))), 138057#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|)) (not (= main_~state~0 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 138062#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 138063#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (and (not (= (select (select |#memory_int| |main_#t~mem13.base|) (+ main_~head~0.offset 4)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 138060#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 138061#(and (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 138066#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem12| 0))) (= main_~head~0.offset 0)), 138067#(and (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 138064#(and (or (not (= (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4)) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem19.offset|))), 138065#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 main_~x~0.offset)) (or (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 138070#(not (= 0 main_~head~0.offset)), 138068#(not (= 0 |main_#t~mem20.offset|)), 138069#(not (= 0 main_~x~0.offset)), 138038#false, 138039#(= 0 |main_#t~malloc0.offset|), 138037#true, 138042#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 138043#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 138040#(= main_~head~0.offset 0), 138041#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 138046#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 138047#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 138044#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 138045#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))] [2018-02-04 17:02:57,686 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:02:57,686 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-04 17:02:57,686 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-04 17:02:57,686 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 17:02:57,686 INFO L87 Difference]: Start difference. First operand 1025 states and 1152 transitions. Second operand 34 states. [2018-02-04 17:02:59,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:02:59,597 INFO L93 Difference]: Finished difference Result 1320 states and 1476 transitions. [2018-02-04 17:02:59,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-04 17:02:59,597 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 91 [2018-02-04 17:02:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:02:59,597 INFO L225 Difference]: With dead ends: 1320 [2018-02-04 17:02:59,598 INFO L226 Difference]: Without dead ends: 1312 [2018-02-04 17:02:59,598 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=557, Invalid=3999, Unknown=0, NotChecked=0, Total=4556 [2018-02-04 17:02:59,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2018-02-04 17:02:59,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1011. [2018-02-04 17:02:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1011 states. [2018-02-04 17:02:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1136 transitions. [2018-02-04 17:02:59,602 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1136 transitions. Word has length 91 [2018-02-04 17:02:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:02:59,602 INFO L432 AbstractCegarLoop]: Abstraction has 1011 states and 1136 transitions. [2018-02-04 17:02:59,602 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-04 17:02:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1136 transitions. [2018-02-04 17:02:59,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-02-04 17:02:59,602 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:02:59,602 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:02:59,602 INFO L371 AbstractCegarLoop]: === Iteration 128 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:02:59,603 INFO L82 PathProgramCache]: Analyzing trace with hash -603886364, now seen corresponding path program 2 times [2018-02-04 17:02:59,603 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:02:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:02:59,615 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:00,986 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:00,987 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:00,987 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-02-04 17:03:00,987 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:00,988 INFO L182 omatonBuilderFactory]: Interpolants [140482#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 140483#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0)), 140480#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 140481#(and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) 0) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 140486#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= 8 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) 0) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 1)), 140487#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0)), 140484#(and (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) 0) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))), 140485#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 140490#(and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (not (= (select |#valid| main_~head~0.base) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset) 0)), 140491#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0)), 140488#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0)), 140489#(and (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) 0) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 140494#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 140495#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset |main_#t~malloc4.offset|) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc4.base|))), 140492#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| main_~head~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0)), 140493#(and (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) 0) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 140498#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)))), 140499#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 140496#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 140497#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset |main_#t~mem6.offset|)), 140502#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 140503#(and (= (select |#length| |main_#t~mem13.base|) 8) (= |main_#t~mem13.offset| 0)), 140500#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 140501#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 140470#true, 140471#false, 140474#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 140475#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 140472#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 140473#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 140478#(and (= |main_#t~mem6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 140479#(and (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset) 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 140476#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= |main_#t~malloc4.offset| 0) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 140477#(and (= 8 (select |#length| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1))] [2018-02-04 17:03:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:00,988 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-04 17:03:00,988 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-04 17:03:00,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=973, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 17:03:00,989 INFO L87 Difference]: Start difference. First operand 1011 states and 1136 transitions. Second operand 34 states. [2018-02-04 17:03:03,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:03,349 INFO L93 Difference]: Finished difference Result 1022 states and 1143 transitions. [2018-02-04 17:03:03,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 17:03:03,349 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 93 [2018-02-04 17:03:03,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:03,350 INFO L225 Difference]: With dead ends: 1022 [2018-02-04 17:03:03,350 INFO L226 Difference]: Without dead ends: 1022 [2018-02-04 17:03:03,351 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=559, Invalid=2863, Unknown=0, NotChecked=0, Total=3422 [2018-02-04 17:03:03,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2018-02-04 17:03:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1011. [2018-02-04 17:03:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1011 states. [2018-02-04 17:03:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1135 transitions. [2018-02-04 17:03:03,356 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1135 transitions. Word has length 93 [2018-02-04 17:03:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:03,356 INFO L432 AbstractCegarLoop]: Abstraction has 1011 states and 1135 transitions. [2018-02-04 17:03:03,356 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-04 17:03:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1135 transitions. [2018-02-04 17:03:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-02-04 17:03:03,357 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:03,357 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:03,357 INFO L371 AbstractCegarLoop]: === Iteration 129 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:03,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1812704800, now seen corresponding path program 1 times [2018-02-04 17:03:03,358 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:03,364 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:03:03,826 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:03,826 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-04 17:03:03,827 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:03,827 INFO L182 omatonBuilderFactory]: Interpolants [142594#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 142595#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 142592#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 142593#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 142598#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 142599#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 142596#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 142597#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 142602#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 142603#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.offset 0)), 142600#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 142601#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 142606#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem14| (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0)), 142607#(and (or |main_#t~short18| (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 142604#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 142605#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (= main_~head~0.offset |main_#t~mem13.offset|)) (or (not (= main_~head~0.offset |main_#t~mem13.offset|)) (and (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 142610#(or (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 4)))) (not (= |main_#t~mem20.offset| 0))), 142611#(or (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (not (= main_~x~0.offset 0))), 142608#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 142609#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0)), 142614#(or (<= 1 main_~x~0.offset) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (<= (+ main_~x~0.offset 1) 0) (not (= main_~head~0.offset 0))), 142615#(or (<= 1 main_~x~0.offset) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)))) (<= (+ main_~x~0.offset 1) 0)), 142612#(or (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (not (= main_~head~0.offset 0))), 142613#(or (not (= 0 (select (select |#memory_int| |main_#t~mem22.base|) (+ 0 4)))) (not (= main_~head~0.offset 0))), 142616#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0) (not (= 0 |main_#t~mem21|))), 142617#(or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0)), 142587#true, 142590#(= main_~head~0.offset 0), 142591#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 142588#false, 142589#(= 0 |main_#t~malloc0.offset|)] [2018-02-04 17:03:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:03:03,827 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 17:03:03,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 17:03:03,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=833, Unknown=0, NotChecked=0, Total=930 [2018-02-04 17:03:03,828 INFO L87 Difference]: Start difference. First operand 1011 states and 1135 transitions. Second operand 31 states. [2018-02-04 17:03:05,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:05,153 INFO L93 Difference]: Finished difference Result 1265 states and 1414 transitions. [2018-02-04 17:03:05,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-04 17:03:05,153 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 93 [2018-02-04 17:03:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:05,154 INFO L225 Difference]: With dead ends: 1265 [2018-02-04 17:03:05,154 INFO L226 Difference]: Without dead ends: 1264 [2018-02-04 17:03:05,154 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=505, Invalid=3917, Unknown=0, NotChecked=0, Total=4422 [2018-02-04 17:03:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2018-02-04 17:03:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 970. [2018-02-04 17:03:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2018-02-04 17:03:05,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1091 transitions. [2018-02-04 17:03:05,160 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1091 transitions. Word has length 93 [2018-02-04 17:03:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:05,160 INFO L432 AbstractCegarLoop]: Abstraction has 970 states and 1091 transitions. [2018-02-04 17:03:05,160 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 17:03:05,160 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1091 transitions. [2018-02-04 17:03:05,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-02-04 17:03:05,160 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:05,160 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:05,161 INFO L371 AbstractCegarLoop]: === Iteration 130 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:05,161 INFO L82 PathProgramCache]: Analyzing trace with hash 734480786, now seen corresponding path program 1 times [2018-02-04 17:03:05,161 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:05,184 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:06,240 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:06,240 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-02-04 17:03:06,240 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:06,240 INFO L182 omatonBuilderFactory]: Interpolants [144926#false, 144927#(= 0 |main_#t~malloc0.offset|), 144925#true, 144930#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 144931#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 144928#(= main_~head~0.offset 0), 144929#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 144934#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 144935#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 144932#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 144933#(and (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 144938#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~state~0 0)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 144939#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~state~0 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0)), 144936#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~state~0 0)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 144937#(and (not (= main_~state~0 0)) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 144942#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= main_~head~0.offset main_~x~0.offset) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 144943#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 144940#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (or (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0))) (not (= main_~head~0.offset main_~x~0.offset)))), 144941#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= main_~head~0.offset main_~x~0.offset) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 144946#(and (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 144947#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 144944#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~state~0 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 144945#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 144950#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 144951#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)) 0)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)))) (= main_~head~0.offset 0)), 144948#(and (not (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 144949#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 144954#(and (= main_~head~0.offset 0) (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (= main_~head~0.offset main_~x~0.offset)))), 144955#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem12| 0))) (= main_~head~0.offset 0)), 144952#(and (= main_~head~0.offset 0) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_int| |main_#t~mem13.base|) (+ main_~head~0.offset 4)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 144953#(and (or (and (not (= (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4)) 0)) (= 0 |main_#t~mem19.offset|)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 144958#(not (= 0 main_~x~0.offset)), 144959#(not (= 0 main_~head~0.offset)), 144956#(and (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 144957#(not (= 0 |main_#t~mem20.offset|))] [2018-02-04 17:03:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:06,241 INFO L409 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-02-04 17:03:06,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-02-04 17:03:06,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1050, Unknown=0, NotChecked=0, Total=1190 [2018-02-04 17:03:06,241 INFO L87 Difference]: Start difference. First operand 970 states and 1091 transitions. Second operand 35 states. [2018-02-04 17:03:08,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:08,162 INFO L93 Difference]: Finished difference Result 1325 states and 1486 transitions. [2018-02-04 17:03:08,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-04 17:03:08,162 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 93 [2018-02-04 17:03:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:08,163 INFO L225 Difference]: With dead ends: 1325 [2018-02-04 17:03:08,163 INFO L226 Difference]: Without dead ends: 1317 [2018-02-04 17:03:08,163 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1181 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=609, Invalid=4361, Unknown=0, NotChecked=0, Total=4970 [2018-02-04 17:03:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2018-02-04 17:03:08,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 979. [2018-02-04 17:03:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2018-02-04 17:03:08,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1101 transitions. [2018-02-04 17:03:08,167 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1101 transitions. Word has length 93 [2018-02-04 17:03:08,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:08,167 INFO L432 AbstractCegarLoop]: Abstraction has 979 states and 1101 transitions. [2018-02-04 17:03:08,167 INFO L433 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-02-04 17:03:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1101 transitions. [2018-02-04 17:03:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-02-04 17:03:08,167 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:08,168 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:08,168 INFO L371 AbstractCegarLoop]: === Iteration 131 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:08,168 INFO L82 PathProgramCache]: Analyzing trace with hash -191722064, now seen corresponding path program 2 times [2018-02-04 17:03:08,168 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:08,177 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:09,193 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:09,193 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-02-04 17:03:09,194 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:09,194 INFO L182 omatonBuilderFactory]: Interpolants [147338#(= 0 |main_#t~malloc0.offset|), 147339#(= main_~head~0.offset 0), 147336#true, 147337#false, 147342#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 147343#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 147340#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 147341#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 147346#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 147347#(and (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 147344#(and (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 147345#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 147350#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 147351#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 147348#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 147349#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|) (= main_~head~0.offset 0)), 147354#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.offset|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc4.base|)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~x~0.base |main_#t~malloc4.base|)) (not (= main_~state~0 0)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~head~0.offset 0)), 147355#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 147352#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~state~0 0)) (= main_~x~0.offset 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| main_~x~0.base) 1)), 147353#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~state~0) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 147358#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 147359#(and (not (= (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4) main_~state~0)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 147356#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (not (= main_~state~0 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem6.base|)) (not (= main_~head~0.base |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= main_~head~0.offset 0)), 147357#(and (= (select (select |#memory_int| (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) main_~state~0) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~state~0 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 147362#(and (or (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)) 0)) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 147363#(and (or (and (not (= (select (select |#memory_int| |main_#t~mem13.base|) (+ main_~head~0.offset 4)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 147360#(and (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (+ main_~head~0.offset 4)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 147361#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) 0)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) (+ main_~head~0.offset 4)) 0)) (= main_~head~0.offset 0)), 147366#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem12| 0))) (= main_~head~0.offset 0)), 147367#(and (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 147364#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (not (= (select (select |#memory_int| |main_#t~mem19.base|) (+ main_~head~0.offset 4)) 0))) (= main_~head~0.offset 0) (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem19.offset|))), 147365#(and (or (= main_~head~0.offset main_~x~0.offset) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 0)) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0))) (= main_~head~0.offset 0)), 147370#(not (= main_~head~0.offset 0)), 147368#(not (= |main_#t~mem20.offset| 0)), 147369#(not (= 0 main_~x~0.offset))] [2018-02-04 17:03:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:09,194 INFO L409 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-02-04 17:03:09,194 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-02-04 17:03:09,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1052, Unknown=0, NotChecked=0, Total=1190 [2018-02-04 17:03:09,195 INFO L87 Difference]: Start difference. First operand 979 states and 1101 transitions. Second operand 35 states. [2018-02-04 17:03:11,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:11,022 INFO L93 Difference]: Finished difference Result 1311 states and 1471 transitions. [2018-02-04 17:03:11,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-02-04 17:03:11,022 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 93 [2018-02-04 17:03:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:11,023 INFO L225 Difference]: With dead ends: 1311 [2018-02-04 17:03:11,023 INFO L226 Difference]: Without dead ends: 1303 [2018-02-04 17:03:11,023 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=575, Invalid=4255, Unknown=0, NotChecked=0, Total=4830 [2018-02-04 17:03:11,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2018-02-04 17:03:11,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 935. [2018-02-04 17:03:11,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2018-02-04 17:03:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1052 transitions. [2018-02-04 17:03:11,029 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1052 transitions. Word has length 93 [2018-02-04 17:03:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:11,030 INFO L432 AbstractCegarLoop]: Abstraction has 935 states and 1052 transitions. [2018-02-04 17:03:11,030 INFO L433 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-02-04 17:03:11,030 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1052 transitions. [2018-02-04 17:03:11,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-02-04 17:03:11,031 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:11,031 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:11,031 INFO L371 AbstractCegarLoop]: === Iteration 132 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:11,031 INFO L82 PathProgramCache]: Analyzing trace with hash -3928240, now seen corresponding path program 2 times [2018-02-04 17:03:11,031 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:11,040 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:03:11,694 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:11,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-04 17:03:11,694 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:11,694 INFO L182 omatonBuilderFactory]: Interpolants [149698#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|)), 149699#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0) 0)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)))), 149696#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~malloc4.base| 0)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|)), 149697#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) 0) 0))), 149702#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) 0)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0) 0))), 149703#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)))), 149700#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))), 149701#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0))), 149706#(and (or (not (= 0 |main_#t~mem20.base|)) (not (= 0 |main_#t~mem20.offset|))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) 0) |main_#t~mem20.base|)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) 0))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) 0) (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)))), 149707#(and (or (not (= main_~x~0.offset 0)) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0) main_~x~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0))))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) 0) 0)) (or (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base)))), 149704#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) 0)) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)))), 149705#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) 0)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0))), 149710#(and (or (not (= 0 main_~x~0.offset)) (not (= main_~head~0.offset 0)) (and (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base)))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (or (not (= 0 main_~head~0.offset)) (not (= main_~x~0.base 0)))), 149711#(and (not (= main_~x~0.base 0)) (or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))) (not (= 0 main_~x~0.offset)))), 149708#(and (or (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))) (not (= main_~head~0.offset 0))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (= main_~x~0.offset main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) 0) 0))), 149709#(and (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (or (not (= 0 main_~head~0.offset)) (not (= |main_#t~mem22.base| 0))) (or (not (= main_~head~0.offset 0)) (and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem22.base|) 0) |main_#t~mem22.base|)) (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| |main_#t~mem22.base|) 0)))))), 149714#(and (not (= main_~head~0.base 0)) (or (not (= 0 main_~head~0.offset)) (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)))), 149715#(= 1 (select |#valid| main_~x~0.base)), 149712#(and (not (= main_~head~0.base 0)) (or (not (= 0 main_~head~0.offset)) (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))), 149713#(and (not (= main_~head~0.base 0)) (or (not (= 0 main_~head~0.offset)) (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem22.base|)))), 149687#true, 149690#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 149691#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 149688#false, 149689#(= (select |#valid| main_~head~0.base) 1), 149694#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 149695#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 149692#(and (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 149693#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|))] [2018-02-04 17:03:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:03:11,695 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-04 17:03:11,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-04 17:03:11,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2018-02-04 17:03:11,695 INFO L87 Difference]: Start difference. First operand 935 states and 1052 transitions. Second operand 29 states. [2018-02-04 17:03:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:13,070 INFO L93 Difference]: Finished difference Result 1062 states and 1193 transitions. [2018-02-04 17:03:13,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-02-04 17:03:13,070 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 94 [2018-02-04 17:03:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:13,071 INFO L225 Difference]: With dead ends: 1062 [2018-02-04 17:03:13,071 INFO L226 Difference]: Without dead ends: 1062 [2018-02-04 17:03:13,071 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=302, Invalid=2778, Unknown=0, NotChecked=0, Total=3080 [2018-02-04 17:03:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-02-04 17:03:13,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 991. [2018-02-04 17:03:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2018-02-04 17:03:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1118 transitions. [2018-02-04 17:03:13,075 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1118 transitions. Word has length 94 [2018-02-04 17:03:13,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:13,075 INFO L432 AbstractCegarLoop]: Abstraction has 991 states and 1118 transitions. [2018-02-04 17:03:13,075 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-04 17:03:13,075 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1118 transitions. [2018-02-04 17:03:13,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-02-04 17:03:13,075 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:13,076 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:13,076 INFO L371 AbstractCegarLoop]: === Iteration 133 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:13,076 INFO L82 PathProgramCache]: Analyzing trace with hash -3928239, now seen corresponding path program 2 times [2018-02-04 17:03:13,076 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:13,081 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-02-04 17:03:13,260 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:13,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-04 17:03:13,260 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:13,260 INFO L182 omatonBuilderFactory]: Interpolants [151823#true, 151826#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 151827#(and (= |main_#t~mem19.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem19.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 151824#false, 151825#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|)), 151830#(and (<= |main_#t~mem19.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) |main_#t~mem19.offset|) (= |main_#t~mem19.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 151831#(and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) main_~x~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (<= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 151828#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 151829#(and (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 151834#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 4)) (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 151835#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) |main_#t~mem22.offset|) 4)) (<= (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) |main_#t~mem22.offset|) 8) (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem22.base|) |main_#t~mem22.offset|)))), 151832#(and (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (<= 0 (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 4))), 151833#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) 4)) (<= (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) 8) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))))), 151838#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 (+ main_~x~0.offset 4))), 151836#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 4))), 151837#(and (<= 0 (+ |main_#t~mem22.offset| 4)) (<= (+ |main_#t~mem22.offset| 8) (select |#length| |main_#t~mem22.base|)))] [2018-02-04 17:03:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-02-04 17:03:13,260 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-04 17:03:13,260 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-04 17:03:13,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2018-02-04 17:03:13,261 INFO L87 Difference]: Start difference. First operand 991 states and 1118 transitions. Second operand 16 states. [2018-02-04 17:03:13,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:13,850 INFO L93 Difference]: Finished difference Result 1190 states and 1328 transitions. [2018-02-04 17:03:13,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-04 17:03:13,850 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2018-02-04 17:03:13,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:13,850 INFO L225 Difference]: With dead ends: 1190 [2018-02-04 17:03:13,851 INFO L226 Difference]: Without dead ends: 1190 [2018-02-04 17:03:13,851 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=875, Unknown=0, NotChecked=0, Total=992 [2018-02-04 17:03:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2018-02-04 17:03:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 997. [2018-02-04 17:03:13,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2018-02-04 17:03:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1127 transitions. [2018-02-04 17:03:13,855 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1127 transitions. Word has length 94 [2018-02-04 17:03:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:13,856 INFO L432 AbstractCegarLoop]: Abstraction has 997 states and 1127 transitions. [2018-02-04 17:03:13,856 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-04 17:03:13,856 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1127 transitions. [2018-02-04 17:03:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-02-04 17:03:13,856 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:13,856 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:13,856 INFO L371 AbstractCegarLoop]: === Iteration 134 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:13,856 INFO L82 PathProgramCache]: Analyzing trace with hash -325287500, now seen corresponding path program 3 times [2018-02-04 17:03:13,857 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:13,862 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 10 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:14,747 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:14,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-02-04 17:03:14,747 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:14,748 INFO L182 omatonBuilderFactory]: Interpolants [154058#true, 154059#false, 154062#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 154063#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 154060#(= |main_#t~malloc0.offset| 0), 154061#(= main_~head~0.offset 0), 154066#(and (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= main_~head~0.offset 0)), 154067#(and (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 154064#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 |main_#t~malloc4.offset|)), 154065#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 154070#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 154071#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 154068#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 154069#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 154074#(and (or |main_#t~short18| (and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (= main_~head~0.offset 0)), 154075#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (and (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 154072#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem13.offset|) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset |main_#t~mem13.offset|)) (or (not (= main_~head~0.offset |main_#t~mem13.offset|)) (and (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 154073#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem14| (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0)), 154078#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) |main_#t~mem19.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) |main_#t~mem19.offset|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 154079#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 154076#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.base|) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.offset|) (= main_~head~0.offset 0)), 154077#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (or (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 154082#(and (= main_~head~0.offset 0) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not |main_#t~short18|) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)))), 154083#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 154080#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) |main_#t~mem13.offset|)) (= main_~head~0.offset |main_#t~mem13.offset|)) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ |main_#t~mem13.offset| 4))))) (not (= main_~head~0.offset |main_#t~mem13.offset|)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 154081#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= 0 |main_#t~mem14|)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 154086#(or (not (= 0 main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 154087#(or (not (= 0 main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 154084#(and (or (and (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (= main_~head~0.offset 0)), 154085#(or (not (= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|) (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)))), 154090#(not (= main_~x~0.offset 0)), 154091#(not (= main_~head~0.offset 0)), 154088#(or (not (= 0 main_~head~0.offset)) (not (= |main_#t~mem22.offset| 0))), 154089#(or (not (= 0 main_~head~0.offset)) (not (= main_~x~0.offset 0)))] [2018-02-04 17:03:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 10 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:14,748 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-04 17:03:14,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-04 17:03:14,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 17:03:14,748 INFO L87 Difference]: Start difference. First operand 997 states and 1127 transitions. Second operand 34 states. [2018-02-04 17:03:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:16,919 INFO L93 Difference]: Finished difference Result 1220 states and 1367 transitions. [2018-02-04 17:03:16,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-02-04 17:03:16,920 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 96 [2018-02-04 17:03:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:16,920 INFO L225 Difference]: With dead ends: 1220 [2018-02-04 17:03:16,920 INFO L226 Difference]: Without dead ends: 1206 [2018-02-04 17:03:16,921 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=649, Invalid=5357, Unknown=0, NotChecked=0, Total=6006 [2018-02-04 17:03:16,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2018-02-04 17:03:16,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 997. [2018-02-04 17:03:16,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2018-02-04 17:03:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1127 transitions. [2018-02-04 17:03:16,925 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1127 transitions. Word has length 96 [2018-02-04 17:03:16,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:16,925 INFO L432 AbstractCegarLoop]: Abstraction has 997 states and 1127 transitions. [2018-02-04 17:03:16,925 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-04 17:03:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1127 transitions. [2018-02-04 17:03:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-02-04 17:03:16,925 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:16,925 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:16,925 INFO L371 AbstractCegarLoop]: === Iteration 135 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:16,925 INFO L82 PathProgramCache]: Analyzing trace with hash 519933213, now seen corresponding path program 1 times [2018-02-04 17:03:16,926 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:16,932 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:17,570 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:17,570 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-02-04 17:03:17,570 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:17,571 INFO L182 omatonBuilderFactory]: Interpolants [156418#(and (or (= |main_#t~mem13.offset| 0) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (or (and (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem13.offset| 0)))), 156419#(or (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 156416#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.base|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem19.offset|)), 156417#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 156422#(or (not (= 0 main_~x~0.offset)) (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))), 156423#(or (not (= 0 main_~head~0.offset)) (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))), 156420#(or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0))) (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 156421#(or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) 0))) (and (<= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) 0) (<= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))))), 156426#(or (not (= 0 main_~x~0.offset)) (not (= 1 (select |#valid| main_~x~0.base))) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 156427#(and (= (select |#valid| main_~x~0.base) 1) (or (not (= 0 main_~x~0.offset)) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 156424#(or (not (= 0 main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) |main_#t~mem22.offset|) (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) 0))) (and (<= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) |main_#t~mem22.offset|)) (<= (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) |main_#t~mem22.offset|) 0))), 156425#(or (not (= 0 main_~head~0.offset)) (not (= 0 main_~x~0.offset)) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 156430#(or (and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)) (not (= 0 main_~head~0.offset))), 156431#(and (<= main_~x~0.offset 0) (<= 0 main_~x~0.offset)), 156428#(and (or (not (= 0 main_~head~0.offset)) (and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= (select |#valid| main_~x~0.base) 1)), 156429#(or (not (= 0 main_~head~0.offset)) (and (<= 0 |main_#t~mem22.offset|) (<= |main_#t~mem22.offset| 0))), 156398#false, 156399#(= 0 |main_#t~malloc0.offset|), 156397#true, 156402#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 156403#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base) (= 0 |main_#t~malloc4.offset|)), 156400#(= 0 main_~head~0.offset), 156401#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 156406#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 156407#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base))), 156404#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 156405#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 156410#(and (= 0 main_~head~0.offset) (not (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= |main_#t~mem6.base| main_~head~0.base)) (= 0 |main_#t~mem6.offset|)), 156411#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base))), 156408#(and (= 0 main_~head~0.offset) (not (= |main_#t~malloc4.base| main_~x~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~malloc4.base| main_~head~0.base)) (= 0 |main_#t~malloc4.offset|)), 156409#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 156414#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) 0)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem11.offset|)), 156415#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) 0))), 156412#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 156413#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0))] [2018-02-04 17:03:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:17,571 INFO L409 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-02-04 17:03:17,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-02-04 17:03:17,571 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2018-02-04 17:03:17,571 INFO L87 Difference]: Start difference. First operand 997 states and 1127 transitions. Second operand 35 states. [2018-02-04 17:03:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:18,948 INFO L93 Difference]: Finished difference Result 1070 states and 1205 transitions. [2018-02-04 17:03:18,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-02-04 17:03:18,948 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 96 [2018-02-04 17:03:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:18,949 INFO L225 Difference]: With dead ends: 1070 [2018-02-04 17:03:18,949 INFO L226 Difference]: Without dead ends: 1070 [2018-02-04 17:03:18,949 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=629, Invalid=4201, Unknown=0, NotChecked=0, Total=4830 [2018-02-04 17:03:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-02-04 17:03:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1001. [2018-02-04 17:03:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2018-02-04 17:03:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1133 transitions. [2018-02-04 17:03:18,953 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1133 transitions. Word has length 96 [2018-02-04 17:03:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:18,953 INFO L432 AbstractCegarLoop]: Abstraction has 1001 states and 1133 transitions. [2018-02-04 17:03:18,953 INFO L433 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-02-04 17:03:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1133 transitions. [2018-02-04 17:03:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-02-04 17:03:18,954 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:18,954 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:18,954 INFO L371 AbstractCegarLoop]: === Iteration 136 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:18,954 INFO L82 PathProgramCache]: Analyzing trace with hash 519933266, now seen corresponding path program 1 times [2018-02-04 17:03:18,954 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:18,960 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:03:19,359 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:19,359 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-04 17:03:19,359 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:19,360 INFO L182 omatonBuilderFactory]: Interpolants [158594#(or (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (not (= main_~head~0.offset 0))), 158595#(or (not (= main_~head~0.offset 0)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem22.base|) 0))), 158592#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)) 0)), 158593#(or (not (= main_~x~0.offset 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0))), 158598#(or (not (= 0 main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 158599#(or (not (= 0 main_~head~0.offset)) (= 0 |main_#t~mem22.offset|)), 158596#(or (not (= 0 main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.offset 0))), 158597#(or (not (= 0 main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 158602#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 158600#(or (not (= 0 main_~head~0.offset)) (= main_~x~0.offset 0)), 158601#(= main_~x~0.offset 0), 158574#false, 158575#(= 0 |main_#t~malloc0.offset|), 158573#true, 158578#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 158579#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= |main_#t~malloc4.offset| 0) (= main_~x~0.base main_~head~0.base)), 158576#(= 0 main_~head~0.offset), 158577#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 158582#(and (= 0 main_~head~0.offset) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 158583#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 158580#(and (= 0 main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 158581#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.offset| 0) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)), 158586#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem6.base|)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|)), 158587#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base))), 158584#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset |main_#t~malloc4.base|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc4.base|)) (= 0 |main_#t~malloc4.offset|)), 158585#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 158590#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 0)) 0)) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 158591#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0)) 0))), 158588#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 158589#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) 0))] [2018-02-04 17:03:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 17:03:19,360 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 17:03:19,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 17:03:19,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2018-02-04 17:03:19,360 INFO L87 Difference]: Start difference. First operand 1001 states and 1133 transitions. Second operand 30 states. [2018-02-04 17:03:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:03:20,354 INFO L93 Difference]: Finished difference Result 1072 states and 1206 transitions. [2018-02-04 17:03:20,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-02-04 17:03:20,354 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 96 [2018-02-04 17:03:20,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:03:20,355 INFO L225 Difference]: With dead ends: 1072 [2018-02-04 17:03:20,355 INFO L226 Difference]: Without dead ends: 1072 [2018-02-04 17:03:20,355 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=621, Invalid=3539, Unknown=0, NotChecked=0, Total=4160 [2018-02-04 17:03:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2018-02-04 17:03:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1001. [2018-02-04 17:03:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2018-02-04 17:03:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1132 transitions. [2018-02-04 17:03:20,359 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1132 transitions. Word has length 96 [2018-02-04 17:03:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:03:20,359 INFO L432 AbstractCegarLoop]: Abstraction has 1001 states and 1132 transitions. [2018-02-04 17:03:20,359 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 17:03:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1132 transitions. [2018-02-04 17:03:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-02-04 17:03:20,359 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:03:20,359 INFO L351 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:03:20,360 INFO L371 AbstractCegarLoop]: === Iteration 137 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-04 17:03:20,360 INFO L82 PathProgramCache]: Analyzing trace with hash -891178923, now seen corresponding path program 6 times [2018-02-04 17:03:20,360 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 17:03:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:03:20,364 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:03:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:20,696 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 17:03:20,696 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 17:03:20,696 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 17:03:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:20,696 INFO L182 omatonBuilderFactory]: Interpolants [160770#(<= 0 |main_#t~mem19.offset|), 160771#(<= 0 main_~x~0.offset), 160768#(and (= |main_#t~mem13.offset| 0) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 160769#(<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 160772#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 160746#true, 160747#false, 160750#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 160751#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 160748#(= 0 |main_#t~malloc0.offset|), 160749#(= 0 main_~head~0.offset), 160754#(and (= 0 main_~head~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem6.offset|)), 160755#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| main_~x~0.base (store (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset main_~head~0.offset)) main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| main_~x~0.base (store (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset main_~head~0.base)) main_~head~0.base) main_~head~0.offset))), 160752#(and (= 0 main_~head~0.offset) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~malloc4.base|)) (= main_~x~0.base main_~head~0.base)), 160753#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base)), 160758#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) |main_#t~mem11.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) |main_#t~mem11.offset|))), 160759#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 160756#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 160757#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 160762#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))), 160763#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 160760#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))))), 160761#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 160766#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|)), 160767#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 160764#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) |main_#t~mem19.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) |main_#t~mem19.offset|))), 160765#(= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-02-04 17:03:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:03:20,697 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-02-04 17:03:20,697 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-02-04 17:03:20,697 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2018-02-04 17:03:20,697 INFO L87 Difference]: Start difference. First operand 1001 states and 1132 transitions. Second operand 27 states. Received shutdown request... [2018-02-04 17:03:21,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 17:03:21,432 WARN L491 AbstractCegarLoop]: Verification canceled [2018-02-04 17:03:21,436 WARN L185 ceAbstractionStarter]: Timeout [2018-02-04 17:03:21,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 05:03:21 BoogieIcfgContainer [2018-02-04 17:03:21,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 17:03:21,436 INFO L168 Benchmark]: Toolchain (without parser) took 174147.67 ms. Allocated memory was 404.8 MB in the beginning and 1.2 GB in the end (delta: 768.1 MB). Free memory was 361.4 MB in the beginning and 885.7 MB in the end (delta: -524.3 MB). Peak memory consumption was 243.8 MB. Max. memory is 5.3 GB. [2018-02-04 17:03:21,437 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 404.8 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 17:03:21,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.46 ms. Allocated memory is still 404.8 MB. Free memory was 361.4 MB in the beginning and 348.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. [2018-02-04 17:03:21,437 INFO L168 Benchmark]: Boogie Preprocessor took 30.09 ms. Allocated memory is still 404.8 MB. Free memory is still 348.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 17:03:21,438 INFO L168 Benchmark]: RCFGBuilder took 334.28 ms. Allocated memory is still 404.8 MB. Free memory was 348.2 MB in the beginning and 315.1 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 5.3 GB. [2018-02-04 17:03:21,438 INFO L168 Benchmark]: TraceAbstraction took 173625.49 ms. Allocated memory was 404.8 MB in the beginning and 1.2 GB in the end (delta: 768.1 MB). Free memory was 315.1 MB in the beginning and 885.7 MB in the end (delta: -570.6 MB). Peak memory consumption was 197.5 MB. Max. memory is 5.3 GB. [2018-02-04 17:03:21,438 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 404.8 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 155.46 ms. Allocated memory is still 404.8 MB. Free memory was 361.4 MB in the beginning and 348.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.09 ms. Allocated memory is still 404.8 MB. Free memory is still 348.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 334.28 ms. Allocated memory is still 404.8 MB. Free memory was 348.2 MB in the beginning and 315.1 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 173625.49 ms. Allocated memory was 404.8 MB in the beginning and 1.2 GB in the end (delta: 768.1 MB). Free memory was 315.1 MB in the beginning and 885.7 MB in the end (delta: -570.6 MB). Peak memory consumption was 197.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1014). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1031). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1022). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1027). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1033). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 986). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1025). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1022). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1033). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1016). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1019). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1014). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 997). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1030). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1027). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 986). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1019). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 998). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1025). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 982]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 982). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 997). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1010). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 998). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1010). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1030). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1016). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1031). Cancelled while BasicCegarLoop was constructing difference of abstraction (1001states) and interpolant automaton (currently 25 states, 27 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 103 locations, 41 error locations. TIMEOUT Result, 173.5s OverallTime, 137 OverallIterations, 6 TraceHistogramMax, 120.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10753 SDtfs, 53828 SDslu, 112137 SDs, 0 SdLazy, 120113 SolverSat, 9103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5708 GetRequests, 306 SyntacticMatches, 217 SemanticMatches, 5184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55552 ImplicationChecksByTransitivity, 102.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1025occurred in iteration=125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 270/4447 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 136 MinimizatonAttempts, 10223 StatesRemovedByMinimization, 136 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 49.0s InterpolantComputationTime, 8509 NumberOfCodeBlocks, 8509 NumberOfCodeBlocksAsserted, 137 NumberOfCheckSat, 8372 ConstructedInterpolants, 0 QuantifiedInterpolants, 19603577 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 137 InterpolantComputations, 24 PerfectInterpolantSequences, 270/4447 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-circular_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_17-03-21-444.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-circular_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_17-03-21-444.csv Completed graceful shutdown