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/dll-token_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 20:49:23,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 20:49:23,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 20:49:23,563 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 20:49:23,563 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 20:49:23,564 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 20:49:23,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 20:49:23,567 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 20:49:23,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 20:49:23,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 20:49:23,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 20:49:23,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 20:49:23,571 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 20:49:23,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 20:49:23,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 20:49:23,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 20:49:23,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 20:49:23,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 20:49:23,579 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 20:49:23,580 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 20:49:23,581 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 20:49:23,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 20:49:23,582 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 20:49:23,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 20:49:23,583 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 20:49:23,584 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 20:49:23,584 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 20:49:23,585 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 20:49:23,585 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 20:49:23,585 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 20:49:23,586 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 20:49:23,586 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 [2018-02-02 20:49:23,596 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 20:49:23,596 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 20:49:23,597 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 20:49:23,597 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 20:49:23,597 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 20:49:23,598 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 20:49:23,598 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 20:49:23,598 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 20:49:23,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 20:49:23,598 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 20:49:23,599 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 20:49:23,599 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 20:49:23,599 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 20:49:23,599 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 20:49:23,599 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 20:49:23,599 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 20:49:23,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 20:49:23,600 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 20:49:23,600 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 20:49:23,600 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 20:49:23,600 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 20:49:23,600 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 20:49:23,600 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 20:49:23,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 20:49:23,641 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 20:49:23,647 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 20:49:23,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 20:49:23,648 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 20:49:23,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-02 20:49:23,799 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 20:49:23,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 20:49:23,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 20:49:23,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 20:49:23,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 20:49:23,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd3f7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23, skipping insertion in model container [2018-02-02 20:49:23,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,817 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:49:23,844 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:49:23,944 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:49:23,958 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:49:23,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23 WrapperNode [2018-02-02 20:49:23,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 20:49:23,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 20:49:23,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 20:49:23,967 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 20:49:23,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (1/1) ... [2018-02-02 20:49:23,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 20:49:23,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 20:49:23,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 20:49:23,998 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 20:49:23,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (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 [2018-02-02 20:49:24,035 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 20:49:24,035 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 20:49:24,035 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 20:49:24,036 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 20:49:24,036 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 20:49:24,036 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 20:49:24,036 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 20:49:24,036 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 20:49:24,036 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 20:49:24,036 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 20:49:24,037 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 20:49:24,037 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 20:49:24,037 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 20:49:24,037 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 20:49:24,037 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 20:49:24,037 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 20:49:24,037 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 20:49:24,440 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 20:49:24,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:49:24 BoogieIcfgContainer [2018-02-02 20:49:24,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 20:49:24,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 20:49:24,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 20:49:24,444 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 20:49:24,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 08:49:23" (1/3) ... [2018-02-02 20:49:24,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d636a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:49:24, skipping insertion in model container [2018-02-02 20:49:24,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:49:23" (2/3) ... [2018-02-02 20:49:24,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d636a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:49:24, skipping insertion in model container [2018-02-02 20:49:24,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:49:24" (3/3) ... [2018-02-02 20:49:24,446 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-02 20:49:24,452 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 20:49:24,457 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-02-02 20:49:24,481 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 20:49:24,481 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 20:49:24,481 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 20:49:24,481 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 20:49:24,481 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 20:49:24,481 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 20:49:24,481 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 20:49:24,481 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 20:49:24,482 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 20:49:24,492 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-02-02 20:49:24,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 20:49:24,498 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:24,499 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:24,499 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:24,502 INFO L82 PathProgramCache]: Analyzing trace with hash 460791465, now seen corresponding path program 1 times [2018-02-02 20:49:24,535 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:24,563 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:24,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:24,617 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:24,617 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 20:49:24,618 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:24,618 INFO L182 omatonBuilderFactory]: Interpolants [134#true, 135#false, 136#(= 1 (select |#valid| |main_#t~malloc0.base|)), 137#(= 1 (select |#valid| main_~head~0.base))] [2018-02-02 20:49:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:24,619 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 20:49:24,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 20:49:24,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 20:49:24,629 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 4 states. [2018-02-02 20:49:24,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:24,856 INFO L93 Difference]: Finished difference Result 152 states and 155 transitions. [2018-02-02 20:49:24,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 20:49:24,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 20:49:24,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:24,864 INFO L225 Difference]: With dead ends: 152 [2018-02-02 20:49:24,865 INFO L226 Difference]: Without dead ends: 149 [2018-02-02 20:49:24,866 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 [2018-02-02 20:49:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-02 20:49:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2018-02-02 20:49:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-02 20:49:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2018-02-02 20:49:24,894 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 8 [2018-02-02 20:49:24,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:24,895 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2018-02-02 20:49:24,895 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 20:49:24,895 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2018-02-02 20:49:24,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 20:49:24,895 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:24,895 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:24,895 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:24,896 INFO L82 PathProgramCache]: Analyzing trace with hash 460791466, now seen corresponding path program 1 times [2018-02-02 20:49:24,896 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:24,909 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:24,969 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:24,969 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 20:49:24,969 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:24,970 INFO L182 omatonBuilderFactory]: Interpolants [417#true, 418#false, 419#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 420#(and (= (select |#length| main_~head~0.base) 12) (= main_~head~0.offset 0))] [2018-02-02 20:49:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:24,971 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 20:49:24,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 20:49:24,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 20:49:24,972 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand 4 states. [2018-02-02 20:49:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:25,096 INFO L93 Difference]: Finished difference Result 146 states and 148 transitions. [2018-02-02 20:49:25,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 20:49:25,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 20:49:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:25,098 INFO L225 Difference]: With dead ends: 146 [2018-02-02 20:49:25,098 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 20:49:25,099 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 [2018-02-02 20:49:25,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 20:49:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2018-02-02 20:49:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-02-02 20:49:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2018-02-02 20:49:25,108 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 8 [2018-02-02 20:49:25,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:25,109 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2018-02-02 20:49:25,109 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 20:49:25,109 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2018-02-02 20:49:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 20:49:25,109 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:25,109 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:25,110 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:25,110 INFO L82 PathProgramCache]: Analyzing trace with hash 108566574, now seen corresponding path program 1 times [2018-02-02 20:49:25,114 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:25,129 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:25,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,208 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:25,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:49:25,209 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,209 INFO L182 omatonBuilderFactory]: Interpolants [691#true, 692#false, 693#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 694#(and (= 0 main_~head~0.offset) (= 12 (select |#length| main_~head~0.base))), 695#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 20:49:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,209 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:49:25,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:49:25,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:49:25,210 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand 5 states. [2018-02-02 20:49:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:25,450 INFO L93 Difference]: Finished difference Result 223 states and 227 transitions. [2018-02-02 20:49:25,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 20:49:25,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-02 20:49:25,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:25,452 INFO L225 Difference]: With dead ends: 223 [2018-02-02 20:49:25,452 INFO L226 Difference]: Without dead ends: 223 [2018-02-02 20:49:25,452 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 [2018-02-02 20:49:25,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-02-02 20:49:25,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 165. [2018-02-02 20:49:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-02-02 20:49:25,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 194 transitions. [2018-02-02 20:49:25,462 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 194 transitions. Word has length 15 [2018-02-02 20:49:25,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:25,462 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 194 transitions. [2018-02-02 20:49:25,462 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:49:25,462 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 194 transitions. [2018-02-02 20:49:25,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 20:49:25,463 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:25,463 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:25,463 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:25,463 INFO L82 PathProgramCache]: Analyzing trace with hash 108566573, now seen corresponding path program 1 times [2018-02-02 20:49:25,464 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:25,476 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,504 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:25,504 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 20:49:25,504 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,505 INFO L182 omatonBuilderFactory]: Interpolants [1088#true, 1089#false, 1090#(= 1 (select |#valid| main_~head~0.base)), 1091#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:49:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,505 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 20:49:25,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 20:49:25,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 20:49:25,506 INFO L87 Difference]: Start difference. First operand 165 states and 194 transitions. Second operand 4 states. [2018-02-02 20:49:25,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:25,615 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2018-02-02 20:49:25,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 20:49:25,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-02-02 20:49:25,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:25,616 INFO L225 Difference]: With dead ends: 152 [2018-02-02 20:49:25,616 INFO L226 Difference]: Without dead ends: 152 [2018-02-02 20:49:25,617 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 [2018-02-02 20:49:25,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-02-02 20:49:25,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2018-02-02 20:49:25,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-02 20:49:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 162 transitions. [2018-02-02 20:49:25,621 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 162 transitions. Word has length 15 [2018-02-02 20:49:25,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:25,621 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 162 transitions. [2018-02-02 20:49:25,621 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 20:49:25,621 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 162 transitions. [2018-02-02 20:49:25,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 20:49:25,622 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:25,622 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:25,622 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:25,622 INFO L82 PathProgramCache]: Analyzing trace with hash 197081690, now seen corresponding path program 1 times [2018-02-02 20:49:25,623 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:25,635 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,670 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:25,670 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:49:25,670 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,670 INFO L182 omatonBuilderFactory]: Interpolants [1396#true, 1397#false, 1398#(and (= 0 |main_#t~malloc5.offset|) (= 12 (select |#length| |main_#t~malloc5.base|))), 1399#(and (= 12 (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))), 1400#(and (= (select |#length| |main_#t~mem7.base|) 12) (= |main_#t~mem7.offset| 0))] [2018-02-02 20:49:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,670 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:49:25,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:49:25,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:49:25,671 INFO L87 Difference]: Start difference. First operand 150 states and 162 transitions. Second operand 5 states. [2018-02-02 20:49:25,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:25,880 INFO L93 Difference]: Finished difference Result 240 states and 255 transitions. [2018-02-02 20:49:25,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 20:49:25,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 20:49:25,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:25,882 INFO L225 Difference]: With dead ends: 240 [2018-02-02 20:49:25,882 INFO L226 Difference]: Without dead ends: 240 [2018-02-02 20:49:25,883 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-02 20:49:25,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-02-02 20:49:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 149. [2018-02-02 20:49:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-02 20:49:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2018-02-02 20:49:25,889 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 18 [2018-02-02 20:49:25,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:25,890 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2018-02-02 20:49:25,890 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:49:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2018-02-02 20:49:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 20:49:25,890 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:25,891 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:25,891 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:25,891 INFO L82 PathProgramCache]: Analyzing trace with hash 197081689, now seen corresponding path program 1 times [2018-02-02 20:49:25,892 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:25,904 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,936 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:25,936 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:49:25,936 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,937 INFO L182 omatonBuilderFactory]: Interpolants [1796#true, 1797#false, 1798#(= 1 (select |#valid| |main_#t~malloc5.base|)), 1799#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 1800#(= 1 (select |#valid| |main_#t~mem7.base|))] [2018-02-02 20:49:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:25,937 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:49:25,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:49:25,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:49:25,938 INFO L87 Difference]: Start difference. First operand 149 states and 160 transitions. Second operand 5 states. [2018-02-02 20:49:26,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:26,112 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2018-02-02 20:49:26,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 20:49:26,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 20:49:26,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:26,113 INFO L225 Difference]: With dead ends: 212 [2018-02-02 20:49:26,113 INFO L226 Difference]: Without dead ends: 212 [2018-02-02 20:49:26,114 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 [2018-02-02 20:49:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-02-02 20:49:26,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 148. [2018-02-02 20:49:26,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-02-02 20:49:26,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-02-02 20:49:26,118 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 18 [2018-02-02 20:49:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:26,118 INFO L432 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-02-02 20:49:26,118 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:49:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-02-02 20:49:26,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 20:49:26,119 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:26,119 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:26,119 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:26,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584241, now seen corresponding path program 1 times [2018-02-02 20:49:26,119 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:26,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,166 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:26,166 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:49:26,166 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,167 INFO L182 omatonBuilderFactory]: Interpolants [2165#true, 2166#false, 2167#(= 1 (select |#valid| |main_#t~malloc12.base|)), 2168#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 2169#(= 1 (select |#valid| |main_#t~mem14.base|))] [2018-02-02 20:49:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,167 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:49:26,168 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:49:26,168 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:49:26,168 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 5 states. [2018-02-02 20:49:26,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:26,264 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2018-02-02 20:49:26,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 20:49:26,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 20:49:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:26,264 INFO L225 Difference]: With dead ends: 149 [2018-02-02 20:49:26,265 INFO L226 Difference]: Without dead ends: 149 [2018-02-02 20:49:26,265 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 [2018-02-02 20:49:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-02 20:49:26,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2018-02-02 20:49:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-02-02 20:49:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2018-02-02 20:49:26,268 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 19 [2018-02-02 20:49:26,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:26,268 INFO L432 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2018-02-02 20:49:26,268 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:49:26,268 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2018-02-02 20:49:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 20:49:26,269 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:26,269 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:26,269 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:26,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584242, now seen corresponding path program 1 times [2018-02-02 20:49:26,270 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:26,280 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,324 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:26,324 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:49:26,324 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,325 INFO L182 omatonBuilderFactory]: Interpolants [2470#true, 2471#false, 2472#(and (= 0 |main_#t~malloc12.offset|) (= 12 (select |#length| |main_#t~malloc12.base|))), 2473#(and (= 12 (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))), 2474#(and (= |main_#t~mem14.offset| 0) (= (select |#length| |main_#t~mem14.base|) 12))] [2018-02-02 20:49:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,325 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:49:26,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:49:26,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:49:26,325 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand 5 states. [2018-02-02 20:49:26,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:26,417 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2018-02-02 20:49:26,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 20:49:26,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 20:49:26,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:26,417 INFO L225 Difference]: With dead ends: 146 [2018-02-02 20:49:26,417 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 20:49:26,418 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-02 20:49:26,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 20:49:26,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-02-02 20:49:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-02-02 20:49:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2018-02-02 20:49:26,421 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 19 [2018-02-02 20:49:26,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:26,421 INFO L432 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2018-02-02 20:49:26,421 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:49:26,421 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2018-02-02 20:49:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 20:49:26,422 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:26,422 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] [2018-02-02 20:49:26,422 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:26,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1293732257, now seen corresponding path program 1 times [2018-02-02 20:49:26,423 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:26,437 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,548 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:26,548 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-02 20:49:26,548 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,549 INFO L182 omatonBuilderFactory]: Interpolants [2773#true, 2774#false, 2775#(= (select |#valid| main_~head~0.base) 1), 2776#(= (select |#valid| main_~x~0.base) 1), 2777#(and (= 1 (select |#valid| |main_#t~malloc12.base|)) (not (= main_~x~0.base |main_#t~malloc12.base|))), 2778#(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)))), 2779#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|))), 2780#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 2781#(= 1 (select |#valid| |main_#t~mem16.base|))] [2018-02-02 20:49:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,549 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 20:49:26,549 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 20:49:26,549 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-02 20:49:26,549 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand 9 states. [2018-02-02 20:49:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:26,753 INFO L93 Difference]: Finished difference Result 147 states and 153 transitions. [2018-02-02 20:49:26,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 20:49:26,753 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-02-02 20:49:26,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:26,754 INFO L225 Difference]: With dead ends: 147 [2018-02-02 20:49:26,754 INFO L226 Difference]: Without dead ends: 147 [2018-02-02 20:49:26,754 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-02-02 20:49:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-02-02 20:49:26,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2018-02-02 20:49:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-02-02 20:49:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2018-02-02 20:49:26,758 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 22 [2018-02-02 20:49:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:26,758 INFO L432 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2018-02-02 20:49:26,758 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 20:49:26,758 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2018-02-02 20:49:26,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 20:49:26,759 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:26,759 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] [2018-02-02 20:49:26,759 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:26,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1293732256, now seen corresponding path program 1 times [2018-02-02 20:49:26,760 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:26,771 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,872 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:26,873 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-02 20:49:26,873 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,875 INFO L182 omatonBuilderFactory]: Interpolants [3088#(= (select |#valid| main_~head~0.base) 1), 3089#(= (select |#valid| main_~x~0.base) 1), 3090#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= 12 (select |#length| |main_#t~malloc12.base|))), 3091#(and (= 12 (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 3092#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 3093#(and (= 12 (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))), 3094#(and (= |main_#t~mem16.offset| 0) (= (select |#length| |main_#t~mem16.base|) 12)), 3086#true, 3087#false] [2018-02-02 20:49:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:26,875 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 20:49:26,875 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 20:49:26,875 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-02 20:49:26,876 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand 9 states. [2018-02-02 20:49:27,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:27,197 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2018-02-02 20:49:27,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 20:49:27,197 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-02-02 20:49:27,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:27,198 INFO L225 Difference]: With dead ends: 146 [2018-02-02 20:49:27,198 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 20:49:27,198 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-02-02 20:49:27,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 20:49:27,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2018-02-02 20:49:27,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-02-02 20:49:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2018-02-02 20:49:27,201 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 22 [2018-02-02 20:49:27,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:27,201 INFO L432 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2018-02-02 20:49:27,201 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 20:49:27,202 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2018-02-02 20:49:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 20:49:27,202 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:27,202 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] [2018-02-02 20:49:27,202 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:27,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1249497819, now seen corresponding path program 1 times [2018-02-02 20:49:27,203 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:27,213 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:27,332 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:27,332 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-02 20:49:27,332 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:27,333 INFO L182 omatonBuilderFactory]: Interpolants [3397#true, 3398#false, 3399#(= (select |#valid| main_~head~0.base) 1), 3400#(= (select |#valid| main_~x~0.base) 1), 3401#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= 1 (select |#valid| |main_#t~malloc5.base|))), 3402#(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)))), 3403#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem7.base|))), 3404#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 3405#(= 1 (select |#valid| |main_#t~mem9.base|))] [2018-02-02 20:49:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:27,333 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 20:49:27,333 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 20:49:27,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-02 20:49:27,334 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand 9 states. [2018-02-02 20:49:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:27,611 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2018-02-02 20:49:27,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 20:49:27,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-02-02 20:49:27,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:27,656 INFO L225 Difference]: With dead ends: 145 [2018-02-02 20:49:27,656 INFO L226 Difference]: Without dead ends: 145 [2018-02-02 20:49:27,656 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-02-02 20:49:27,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-02-02 20:49:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2018-02-02 20:49:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-02-02 20:49:27,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 151 transitions. [2018-02-02 20:49:27,660 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 151 transitions. Word has length 22 [2018-02-02 20:49:27,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:27,660 INFO L432 AbstractCegarLoop]: Abstraction has 143 states and 151 transitions. [2018-02-02 20:49:27,660 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 20:49:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 151 transitions. [2018-02-02 20:49:27,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 20:49:27,660 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:27,661 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] [2018-02-02 20:49:27,661 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:27,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1249497820, now seen corresponding path program 1 times [2018-02-02 20:49:27,662 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:27,671 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:27,765 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:27,765 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-02 20:49:27,765 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:27,765 INFO L182 omatonBuilderFactory]: Interpolants [3712#(and (= 0 |main_#t~mem9.offset|) (= 12 (select |#length| |main_#t~mem9.base|))), 3713#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12)), 3704#true, 3705#false, 3706#(= (select |#valid| main_~head~0.base) 1), 3707#(= (select |#valid| main_~x~0.base) 1), 3708#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= 12 (select |#length| |main_#t~malloc5.base|))), 3709#(and (= 12 (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 3710#(and (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 3711#(and (= 12 (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)))] [2018-02-02 20:49:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:27,765 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-02 20:49:27,766 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-02 20:49:27,766 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-02-02 20:49:27,766 INFO L87 Difference]: Start difference. First operand 143 states and 151 transitions. Second operand 10 states. [2018-02-02 20:49:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:28,170 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2018-02-02 20:49:28,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-02 20:49:28,170 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-02-02 20:49:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:28,171 INFO L225 Difference]: With dead ends: 140 [2018-02-02 20:49:28,171 INFO L226 Difference]: Without dead ends: 140 [2018-02-02 20:49:28,172 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-02-02 20:49:28,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-02-02 20:49:28,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 119. [2018-02-02 20:49:28,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-02-02 20:49:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 126 transitions. [2018-02-02 20:49:28,174 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 126 transitions. Word has length 22 [2018-02-02 20:49:28,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:28,175 INFO L432 AbstractCegarLoop]: Abstraction has 119 states and 126 transitions. [2018-02-02 20:49:28,175 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-02 20:49:28,175 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 126 transitions. [2018-02-02 20:49:28,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-02 20:49:28,176 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:28,176 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, 1, 1, 1, 1] [2018-02-02 20:49:28,176 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:28,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1046747597, now seen corresponding path program 1 times [2018-02-02 20:49:28,177 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:28,191 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:28,439 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:28,439 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-02 20:49:28,439 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:28,440 INFO L182 omatonBuilderFactory]: Interpolants [4000#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base)), 4001#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base)), 4002#(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.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 4003#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem14.base|))), 4004#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 4005#(or (and (= |main_#t~mem16.base| main_~head~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem16.base|) main_~head~0.offset)) (not (= (+ |main_#t~mem16.offset| 8) main_~head~0.offset))) (and (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem16.base| main_~head~0.base)))), 4006#(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)))), 4007#(or (= 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| main_~x~0.base) main_~x~0.offset))), 4008#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 4009#(or (and (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 1 (select |#valid| main_~x~0.base))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 4010#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 |main_#t~mem19|))), 4011#(= 1 (select |#valid| |main_#t~mem20.base|)), 4012#(= 1 (select |#valid| main_~x~0.base)), 3995#true, 3996#false, 3997#(= 0 |main_#t~malloc0.offset|), 3998#(= 0 main_~head~0.offset), 3999#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)))] [2018-02-02 20:49:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:28,440 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-02 20:49:28,440 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-02 20:49:28,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-02-02 20:49:28,441 INFO L87 Difference]: Start difference. First operand 119 states and 126 transitions. Second operand 18 states. [2018-02-02 20:49:29,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:29,125 INFO L93 Difference]: Finished difference Result 220 states and 230 transitions. [2018-02-02 20:49:29,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-02 20:49:29,125 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 37 [2018-02-02 20:49:29,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:29,126 INFO L225 Difference]: With dead ends: 220 [2018-02-02 20:49:29,126 INFO L226 Difference]: Without dead ends: 220 [2018-02-02 20:49:29,127 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2018-02-02 20:49:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-02-02 20:49:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 145. [2018-02-02 20:49:29,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-02-02 20:49:29,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2018-02-02 20:49:29,130 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 37 [2018-02-02 20:49:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:29,130 INFO L432 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2018-02-02 20:49:29,130 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-02 20:49:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2018-02-02 20:49:29,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-02 20:49:29,131 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:29,132 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, 1, 1, 1, 1] [2018-02-02 20:49:29,132 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:29,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1046747596, now seen corresponding path program 1 times [2018-02-02 20:49:29,133 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:29,145 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:29,302 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:29,302 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-02-02 20:49:29,302 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:29,302 INFO L182 omatonBuilderFactory]: Interpolants [4418#true, 4419#false, 4420#(= 1 (select |#valid| main_~head~0.base)), 4421#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 4422#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc12.base|)) (= main_~x~0.base main_~head~0.base)), 4423#(and (= 12 (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)), 4424#(and (= 12 (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_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem14.base|)) (= |main_#t~mem14.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 4425#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 4426#(and (= 12 (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))), 4427#(and (= 12 (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))), 4428#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= 12 (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)))), 4429#(or (and (= 12 (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 (= 0 |main_#t~mem19|))), 4430#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 4431#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 20:49:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:29,303 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-02 20:49:29,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-02 20:49:29,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-02-02 20:49:29,303 INFO L87 Difference]: Start difference. First operand 145 states and 155 transitions. Second operand 14 states. [2018-02-02 20:49:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:29,775 INFO L93 Difference]: Finished difference Result 245 states and 254 transitions. [2018-02-02 20:49:29,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-02 20:49:29,775 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-02-02 20:49:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:29,776 INFO L225 Difference]: With dead ends: 245 [2018-02-02 20:49:29,776 INFO L226 Difference]: Without dead ends: 245 [2018-02-02 20:49:29,777 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2018-02-02 20:49:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-02-02 20:49:29,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 143. [2018-02-02 20:49:29,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-02-02 20:49:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2018-02-02 20:49:29,779 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 37 [2018-02-02 20:49:29,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:29,780 INFO L432 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2018-02-02 20:49:29,780 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-02 20:49:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2018-02-02 20:49:29,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-02 20:49:29,780 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:29,780 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, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:29,781 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:29,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1370950256, now seen corresponding path program 1 times [2018-02-02 20:49:29,781 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:29,792 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:29,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:29,948 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:29,948 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-02-02 20:49:29,948 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:29,949 INFO L182 omatonBuilderFactory]: Interpolants [4842#true, 4843#false, 4844#(= 0 |main_#t~malloc0.offset|), 4845#(= 0 main_~head~0.offset), 4846#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 4847#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 4848#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base)), 4849#(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.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 4850#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem14.base|))), 4851#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 4852#(or (and (= |main_#t~mem16.base| main_~head~0.base) (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem16.base|) main_~head~0.offset)) (not (= (+ |main_#t~mem16.offset| 8) main_~head~0.offset))) (and (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem16.base| main_~head~0.base)))), 4853#(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)))), 4854#(or (= 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| main_~x~0.base) main_~x~0.offset))), 4855#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 4856#(= 1 (select |#valid| |main_#t~mem22.base|)), 4857#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:49:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:29,949 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-02 20:49:29,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-02 20:49:29,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:49:29,949 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand 16 states. [2018-02-02 20:49:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:30,485 INFO L93 Difference]: Finished difference Result 233 states and 244 transitions. [2018-02-02 20:49:30,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-02 20:49:30,485 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2018-02-02 20:49:30,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:30,486 INFO L225 Difference]: With dead ends: 233 [2018-02-02 20:49:30,486 INFO L226 Difference]: Without dead ends: 233 [2018-02-02 20:49:30,486 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2018-02-02 20:49:30,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-02-02 20:49:30,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 151. [2018-02-02 20:49:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-02-02 20:49:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2018-02-02 20:49:30,488 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 37 [2018-02-02 20:49:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:30,489 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2018-02-02 20:49:30,489 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-02 20:49:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2018-02-02 20:49:30,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-02 20:49:30,489 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:30,489 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, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:30,489 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:30,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1370950257, now seen corresponding path program 1 times [2018-02-02 20:49:30,490 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:30,502 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:30,641 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:30,642 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-02 20:49:30,642 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:30,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:30,642 INFO L182 omatonBuilderFactory]: Interpolants [5280#(= (select |#valid| main_~head~0.base) 1), 5281#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 5282#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc12.base|)) (= main_~x~0.base main_~head~0.base)), 5283#(and (= 12 (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)), 5284#(and (= 12 (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_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem14.base|)) (= |main_#t~mem14.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 5285#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 5286#(and (= 12 (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))), 5287#(and (= 12 (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))), 5288#(and (= 12 (select |#length| |main_#t~mem22.base|)) (= 0 |main_#t~mem22.offset|)), 5289#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12)), 5278#true, 5279#false] [2018-02-02 20:49:30,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:30,642 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-02 20:49:30,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-02 20:49:30,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-02-02 20:49:30,642 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 12 states. [2018-02-02 20:49:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:31,087 INFO L93 Difference]: Finished difference Result 248 states and 257 transitions. [2018-02-02 20:49:31,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-02-02 20:49:31,087 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-02-02 20:49:31,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:31,088 INFO L225 Difference]: With dead ends: 248 [2018-02-02 20:49:31,088 INFO L226 Difference]: Without dead ends: 248 [2018-02-02 20:49:31,089 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2018-02-02 20:49:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-02-02 20:49:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 151. [2018-02-02 20:49:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-02-02 20:49:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 160 transitions. [2018-02-02 20:49:31,091 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 160 transitions. Word has length 37 [2018-02-02 20:49:31,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:31,091 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 160 transitions. [2018-02-02 20:49:31,091 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-02 20:49:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2018-02-02 20:49:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-02-02 20:49:31,092 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:31,092 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:49:31,092 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:31,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2032889175, now seen corresponding path program 2 times [2018-02-02 20:49:31,093 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:31,103 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:31,366 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:31,366 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:49:31,366 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:31,367 INFO L182 omatonBuilderFactory]: Interpolants [5707#true, 5708#false, 5709#(= 0 |main_#t~malloc0.offset|), 5710#(= main_~head~0.offset 0), 5711#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 5712#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 5713#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 5714#(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)), 5715#(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)) (not (= main_~x~0.base |main_#t~mem14.base|)) (= main_~head~0.offset 0) (= |main_#t~mem14.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 5716#(and (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem16.offset| 0) (not (= |main_#t~mem16.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 5717#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8)) 2) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 5718#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 5719#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 5720#(or (and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= 0 |main_#t~mem19|))), 5721#(and (= 0 |main_#t~mem20.offset|) (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)) 2)), 5722#(or (<= (+ main_~x~0.offset 1) 0) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 2)), 5723#(or (<= (+ main_~x~0.offset 1) 0) (= |main_#t~mem19| 2)), 5724#(<= (+ main_~x~0.offset 1) 0)] [2018-02-02 20:49:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:31,367 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-02 20:49:31,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-02 20:49:31,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-02-02 20:49:31,367 INFO L87 Difference]: Start difference. First operand 151 states and 160 transitions. Second operand 18 states. [2018-02-02 20:49:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:31,981 INFO L93 Difference]: Finished difference Result 225 states and 232 transitions. [2018-02-02 20:49:31,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-02 20:49:31,982 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 46 [2018-02-02 20:49:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:31,982 INFO L225 Difference]: With dead ends: 225 [2018-02-02 20:49:31,982 INFO L226 Difference]: Without dead ends: 220 [2018-02-02 20:49:31,983 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2018-02-02 20:49:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-02-02 20:49:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 154. [2018-02-02 20:49:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-02-02 20:49:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 163 transitions. [2018-02-02 20:49:31,985 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 163 transitions. Word has length 46 [2018-02-02 20:49:31,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:31,985 INFO L432 AbstractCegarLoop]: Abstraction has 154 states and 163 transitions. [2018-02-02 20:49:31,985 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-02 20:49:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 163 transitions. [2018-02-02 20:49:31,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-02-02 20:49:31,985 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:31,985 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, 1] [2018-02-02 20:49:31,986 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:31,986 INFO L82 PathProgramCache]: Analyzing trace with hash 384808678, now seen corresponding path program 1 times [2018-02-02 20:49:31,986 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:31,994 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:32,245 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:32,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:49:32,246 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:32,246 INFO L182 omatonBuilderFactory]: Interpolants [6144#(= 0 |main_#t~malloc0.offset|), 6145#(= main_~head~0.offset 0), 6146#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 6147#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 6148#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 6149#(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)), 6150#(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)) (not (= main_~x~0.base |main_#t~mem14.base|)) (= main_~head~0.offset 0) (= |main_#t~mem14.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 6151#(and (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem16.offset| 0) (not (= |main_#t~mem16.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 6152#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8)) 2) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 6153#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 6154#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 6155#(or (and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (not (= 0 |main_#t~mem19|))), 6156#(and (= 0 |main_#t~mem20.offset|) (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)) 2)), 6157#(or (<= (+ main_~x~0.offset 1) 0) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 2)), 6158#(or (<= (+ main_~x~0.offset 1) 0) (and (= |main_#t~mem18| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 2))), 6159#(<= (+ main_~x~0.offset 1) 0), 6142#true, 6143#false] [2018-02-02 20:49:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:32,246 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-02 20:49:32,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-02 20:49:32,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-02-02 20:49:32,247 INFO L87 Difference]: Start difference. First operand 154 states and 163 transitions. Second operand 18 states. [2018-02-02 20:49:32,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:32,852 INFO L93 Difference]: Finished difference Result 215 states and 221 transitions. [2018-02-02 20:49:32,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-02 20:49:32,852 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 46 [2018-02-02 20:49:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:32,852 INFO L225 Difference]: With dead ends: 215 [2018-02-02 20:49:32,853 INFO L226 Difference]: Without dead ends: 201 [2018-02-02 20:49:32,853 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=296, Invalid=1036, Unknown=0, NotChecked=0, Total=1332 [2018-02-02 20:49:32,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-02-02 20:49:32,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 145. [2018-02-02 20:49:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-02-02 20:49:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2018-02-02 20:49:32,855 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 46 [2018-02-02 20:49:32,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:32,855 INFO L432 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2018-02-02 20:49:32,855 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-02 20:49:32,855 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2018-02-02 20:49:32,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-02-02 20:49:32,856 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:32,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:32,856 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:32,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1950459154, now seen corresponding path program 1 times [2018-02-02 20:49:32,857 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:32,864 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:33,053 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:33,053 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:49:33,054 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:33,054 INFO L182 omatonBuilderFactory]: Interpolants [6560#(not (= 0 |main_#t~malloc0.base|)), 6561#(not (= 0 main_~head~0.base)), 6562#(and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base))), 6563#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 6564#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 6565#(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) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 6566#(and (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem14.base|)) (= |main_#t~mem14.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 6567#(and (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base))), 6568#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base))), 6569#(and (not (= main_~head~0.base |main_#t~mem22.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem22.base|) (not (= 0 main_~head~0.base))), 6570#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base main_~x~0.base)) (not (= 0 main_~head~0.base))), 6571#(and (= 1 (select |#valid| (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))), 6572#(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))), 6573#(and (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~head~0.base))), 6574#(and (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem25.base|)) (not (= 0 main_~head~0.base))), 6575#(and (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)) (not (= 0 main_~head~0.base))), 6576#(= 1 (select |#valid| main_~x~0.base)), 6558#true, 6559#false] [2018-02-02 20:49:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:33,054 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-02 20:49:33,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-02 20:49:33,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2018-02-02 20:49:33,055 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand 19 states. [2018-02-02 20:49:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:33,720 INFO L93 Difference]: Finished difference Result 222 states and 228 transitions. [2018-02-02 20:49:33,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-02 20:49:33,720 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2018-02-02 20:49:33,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:33,721 INFO L225 Difference]: With dead ends: 222 [2018-02-02 20:49:33,721 INFO L226 Difference]: Without dead ends: 222 [2018-02-02 20:49:33,721 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2018-02-02 20:49:33,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-02-02 20:49:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 156. [2018-02-02 20:49:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-02-02 20:49:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 166 transitions. [2018-02-02 20:49:33,723 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 166 transitions. Word has length 48 [2018-02-02 20:49:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:33,723 INFO L432 AbstractCegarLoop]: Abstraction has 156 states and 166 transitions. [2018-02-02 20:49:33,723 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-02 20:49:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 166 transitions. [2018-02-02 20:49:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-02-02 20:49:33,724 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:33,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:33,724 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:33,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1950459153, now seen corresponding path program 1 times [2018-02-02 20:49:33,724 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:33,733 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:33,819 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:33,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-02-02 20:49:33,820 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:33,820 INFO L182 omatonBuilderFactory]: Interpolants [6997#true, 6998#false, 6999#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 7000#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem22.offset|) (= |main_#t~mem22.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 7001#(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))), 7002#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 12) (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) 8))), 7003#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 12) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 7004#(and (<= (+ |main_#t~mem25.offset| 12) (select |#length| |main_#t~mem25.base|)) (<= 0 (+ |main_#t~mem25.offset| 8))), 7005#(and (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base)) (<= 0 (+ main_~x~0.offset 8)))] [2018-02-02 20:49:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:33,820 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 20:49:33,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 20:49:33,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-02-02 20:49:33,820 INFO L87 Difference]: Start difference. First operand 156 states and 166 transitions. Second operand 9 states. [2018-02-02 20:49:34,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:34,105 INFO L93 Difference]: Finished difference Result 215 states and 220 transitions. [2018-02-02 20:49:34,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-02 20:49:34,105 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-02-02 20:49:34,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:34,106 INFO L225 Difference]: With dead ends: 215 [2018-02-02 20:49:34,106 INFO L226 Difference]: Without dead ends: 215 [2018-02-02 20:49:34,106 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:49:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-02-02 20:49:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 167. [2018-02-02 20:49:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-02-02 20:49:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 180 transitions. [2018-02-02 20:49:34,108 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 180 transitions. Word has length 48 [2018-02-02 20:49:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:34,108 INFO L432 AbstractCegarLoop]: Abstraction has 167 states and 180 transitions. [2018-02-02 20:49:34,108 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 20:49:34,108 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 180 transitions. [2018-02-02 20:49:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-02 20:49:34,109 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:34,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:34,109 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:34,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1756403259, now seen corresponding path program 1 times [2018-02-02 20:49:34,109 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:34,115 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:34,271 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:34,271 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-02 20:49:34,271 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:34,272 INFO L182 omatonBuilderFactory]: Interpolants [7403#true, 7404#false, 7405#(= 0 |main_#t~malloc0.offset|), 7406#(= 0 main_~head~0.offset), 7407#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 7408#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 7409#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base)), 7410#(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.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 7411#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem14.base|))), 7412#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 7413#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem16.base|) main_~head~0.offset)) (= |main_#t~mem16.base| main_~head~0.base) (not (= (+ |main_#t~mem16.offset| 8) main_~head~0.offset))) (and (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 7414#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 7415#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 7416#(= 0 |main_#t~mem27.offset|)] [2018-02-02 20:49:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:34,272 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-02 20:49:34,272 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-02 20:49:34,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-02-02 20:49:34,273 INFO L87 Difference]: Start difference. First operand 167 states and 180 transitions. Second operand 14 states. [2018-02-02 20:49:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:34,643 INFO L93 Difference]: Finished difference Result 207 states and 217 transitions. [2018-02-02 20:49:34,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-02 20:49:34,644 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 49 [2018-02-02 20:49:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:34,644 INFO L225 Difference]: With dead ends: 207 [2018-02-02 20:49:34,644 INFO L226 Difference]: Without dead ends: 207 [2018-02-02 20:49:34,645 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2018-02-02 20:49:34,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-02-02 20:49:34,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 173. [2018-02-02 20:49:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-02-02 20:49:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 187 transitions. [2018-02-02 20:49:34,646 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 187 transitions. Word has length 49 [2018-02-02 20:49:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:34,647 INFO L432 AbstractCegarLoop]: Abstraction has 173 states and 187 transitions. [2018-02-02 20:49:34,647 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-02 20:49:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 187 transitions. [2018-02-02 20:49:34,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-02 20:49:34,647 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:34,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:34,647 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:34,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1756403258, now seen corresponding path program 1 times [2018-02-02 20:49:34,648 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:34,655 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:34,708 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:34,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 20:49:34,708 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:34,708 INFO L182 omatonBuilderFactory]: Interpolants [7827#true, 7828#false, 7829#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 7830#(= |main_#t~mem22.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)), 7831#(= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)), 7832#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 7833#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 7834#(= 1 (select |#valid| |main_#t~mem27.base|))] [2018-02-02 20:49:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:34,709 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 20:49:34,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 20:49:34,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-02 20:49:34,709 INFO L87 Difference]: Start difference. First operand 173 states and 187 transitions. Second operand 8 states. [2018-02-02 20:49:34,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:34,932 INFO L93 Difference]: Finished difference Result 196 states and 203 transitions. [2018-02-02 20:49:34,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 20:49:34,934 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-02-02 20:49:34,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:34,935 INFO L225 Difference]: With dead ends: 196 [2018-02-02 20:49:34,935 INFO L226 Difference]: Without dead ends: 196 [2018-02-02 20:49:34,935 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-02-02 20:49:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-02-02 20:49:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 179. [2018-02-02 20:49:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-02-02 20:49:34,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 193 transitions. [2018-02-02 20:49:34,938 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 193 transitions. Word has length 49 [2018-02-02 20:49:34,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:34,938 INFO L432 AbstractCegarLoop]: Abstraction has 179 states and 193 transitions. [2018-02-02 20:49:34,938 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 20:49:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 193 transitions. [2018-02-02 20:49:34,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-02-02 20:49:34,939 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:34,939 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, 1, 1] [2018-02-02 20:49:34,939 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:34,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1785500528, now seen corresponding path program 1 times [2018-02-02 20:49:34,940 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:34,952 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:35,239 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:35,239 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:49:35,239 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:35,240 INFO L182 omatonBuilderFactory]: Interpolants [8224#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base)), 8225#(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.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 8226#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem14.base|))), 8227#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 8228#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem16.base|) main_~head~0.offset)) (= |main_#t~mem16.base| main_~head~0.base) (not (= (+ |main_#t~mem16.offset| 8) main_~head~0.offset))) (and (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 8229#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 8230#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8231#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem22.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8232#(and (= main_~x~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))), 8233#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 8234#(= 0 |main_#t~mem25.offset|), 8235#(= main_~x~0.offset 0), 8236#(and (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 8218#true, 8219#false, 8220#(= 0 |main_#t~malloc0.offset|), 8221#(= 0 main_~head~0.offset), 8222#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 8223#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1))] [2018-02-02 20:49:35,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:35,240 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-02 20:49:35,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-02 20:49:35,240 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-02-02 20:49:35,240 INFO L87 Difference]: Start difference. First operand 179 states and 193 transitions. Second operand 19 states. [2018-02-02 20:49:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:35,736 INFO L93 Difference]: Finished difference Result 217 states and 226 transitions. [2018-02-02 20:49:35,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-02 20:49:35,736 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2018-02-02 20:49:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:35,736 INFO L225 Difference]: With dead ends: 217 [2018-02-02 20:49:35,737 INFO L226 Difference]: Without dead ends: 217 [2018-02-02 20:49:35,737 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=417, Invalid=1065, Unknown=0, NotChecked=0, Total=1482 [2018-02-02 20:49:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-02-02 20:49:35,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 177. [2018-02-02 20:49:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-02-02 20:49:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 191 transitions. [2018-02-02 20:49:35,739 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 191 transitions. Word has length 50 [2018-02-02 20:49:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:35,739 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 191 transitions. [2018-02-02 20:49:35,739 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-02 20:49:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 191 transitions. [2018-02-02 20:49:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-02 20:49:35,740 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:35,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:35,740 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:35,740 INFO L82 PathProgramCache]: Analyzing trace with hash 18622023, now seen corresponding path program 1 times [2018-02-02 20:49:35,741 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:35,749 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:35,882 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:35,882 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-02 20:49:35,883 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:35,883 INFO L182 omatonBuilderFactory]: Interpolants [8672#false, 8673#(= (select |#valid| main_~head~0.base) 1), 8674#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 8675#(and (not (= 0 |main_#t~malloc12.base|)) (not (= main_~x~0.base |main_#t~malloc12.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 8676#(and (= 1 (select |#valid| main_~x~0.base)) (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) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 8677#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem14.base|)) (= |main_#t~mem14.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 8678#(and (= 1 (select |#valid| main_~head~0.base)) (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 8679#(and (= 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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 8680#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 8681#(and (= 1 (select (store |#valid| |main_#t~mem27.base| 0) main_~x~0.base)) (not (= 0 |main_#t~mem27.base|))), 8682#(= 1 (select |#valid| main_~x~0.base)), 8671#true] [2018-02-02 20:49:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:35,883 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-02 20:49:35,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-02 20:49:35,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-02-02 20:49:35,884 INFO L87 Difference]: Start difference. First operand 177 states and 191 transitions. Second operand 12 states. [2018-02-02 20:49:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:36,167 INFO L93 Difference]: Finished difference Result 198 states and 213 transitions. [2018-02-02 20:49:36,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-02 20:49:36,167 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-02-02 20:49:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:36,168 INFO L225 Difference]: With dead ends: 198 [2018-02-02 20:49:36,168 INFO L226 Difference]: Without dead ends: 198 [2018-02-02 20:49:36,168 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2018-02-02 20:49:36,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-02-02 20:49:36,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 179. [2018-02-02 20:49:36,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-02-02 20:49:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 193 transitions. [2018-02-02 20:49:36,170 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 193 transitions. Word has length 51 [2018-02-02 20:49:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:36,170 INFO L432 AbstractCegarLoop]: Abstraction has 179 states and 193 transitions. [2018-02-02 20:49:36,170 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-02 20:49:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 193 transitions. [2018-02-02 20:49:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-02 20:49:36,171 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:36,171 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, 1, 1, 1] [2018-02-02 20:49:36,171 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:36,171 INFO L82 PathProgramCache]: Analyzing trace with hash 405927113, now seen corresponding path program 1 times [2018-02-02 20:49:36,172 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:36,184 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:36,585 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:36,585 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-02 20:49:36,585 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:36,585 INFO L182 omatonBuilderFactory]: Interpolants [9088#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 9089#(and (= 1 (select |#valid| (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)))), 9090#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 9091#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 9092#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 9093#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 9094#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 |main_#t~mem19|))), 9095#(= 1 (select |#valid| |main_#t~mem20.base|)), 9096#(= 1 (select |#valid| main_~x~0.base)), 9076#true, 9077#false, 9078#(= 1 (select |#valid| main_~head~0.base)), 9079#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 9080#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 9081#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 9082#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 9083#(and (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 9084#(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)) (not (= main_~x~0.base main_~head~0.base))), 9085#(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)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 9086#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset))), 9087#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (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))))] [2018-02-02 20:49:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:36,586 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-02 20:49:36,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-02 20:49:36,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2018-02-02 20:49:36,586 INFO L87 Difference]: Start difference. First operand 179 states and 193 transitions. Second operand 21 states. [2018-02-02 20:49:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:37,295 INFO L93 Difference]: Finished difference Result 300 states and 323 transitions. [2018-02-02 20:49:37,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:49:37,295 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 51 [2018-02-02 20:49:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:37,297 INFO L225 Difference]: With dead ends: 300 [2018-02-02 20:49:37,298 INFO L226 Difference]: Without dead ends: 300 [2018-02-02 20:49:37,298 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=267, Invalid=1215, Unknown=0, NotChecked=0, Total=1482 [2018-02-02 20:49:37,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-02-02 20:49:37,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 216. [2018-02-02 20:49:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-02-02 20:49:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 233 transitions. [2018-02-02 20:49:37,303 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 233 transitions. Word has length 51 [2018-02-02 20:49:37,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:37,303 INFO L432 AbstractCegarLoop]: Abstraction has 216 states and 233 transitions. [2018-02-02 20:49:37,303 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-02 20:49:37,303 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 233 transitions. [2018-02-02 20:49:37,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-02 20:49:37,304 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:37,304 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, 1, 1, 1] [2018-02-02 20:49:37,304 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:37,304 INFO L82 PathProgramCache]: Analyzing trace with hash 405927114, now seen corresponding path program 1 times [2018-02-02 20:49:37,305 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:37,314 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:37,762 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:37,763 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-02 20:49:37,763 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:37,763 INFO L182 omatonBuilderFactory]: Interpolants [9664#(and (= 12 (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))), 9665#(and (= 12 (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))), 9666#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= 12 (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)))), 9667#(or (and (= 12 (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 (= 0 |main_#t~mem19|))), 9668#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 9669#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12)), 9649#true, 9650#false, 9651#(= 1 (select |#valid| main_~head~0.base)), 9652#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 9653#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc5.base|)) (= main_~x~0.base main_~head~0.base)), 9654#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (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)), 9655#(and (= 1 (select |#valid| main_~x~0.base)) (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.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_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 9656#(and (= 12 (select |#length| |main_#t~mem9.base|)) (= |main_#t~mem9.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9657#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 9658#(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_~head~0.base)) (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) (= (select |#length| main_~x~0.base) 12)), 9659#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.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~malloc12.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_#t~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 9660#(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)) (= 12 (select |#length| main_~x~0.base)) (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))), 9661#(and (= 12 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))), 9662#(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)) (= 12 (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))), 9663#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-02-02 20:49:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:37,764 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-02 20:49:37,764 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-02 20:49:37,764 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2018-02-02 20:49:37,764 INFO L87 Difference]: Start difference. First operand 216 states and 233 transitions. Second operand 21 states. [2018-02-02 20:49:38,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:38,528 INFO L93 Difference]: Finished difference Result 344 states and 368 transitions. [2018-02-02 20:49:38,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:49:38,528 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 51 [2018-02-02 20:49:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:38,529 INFO L225 Difference]: With dead ends: 344 [2018-02-02 20:49:38,529 INFO L226 Difference]: Without dead ends: 344 [2018-02-02 20:49:38,530 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=274, Invalid=1132, Unknown=0, NotChecked=0, Total=1406 [2018-02-02 20:49:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2018-02-02 20:49:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 222. [2018-02-02 20:49:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-02-02 20:49:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2018-02-02 20:49:38,534 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 51 [2018-02-02 20:49:38,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:38,534 INFO L432 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2018-02-02 20:49:38,534 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-02 20:49:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2018-02-02 20:49:38,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-02 20:49:38,535 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:38,535 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, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:38,535 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:38,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1471342330, now seen corresponding path program 1 times [2018-02-02 20:49:38,536 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:38,548 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:38,808 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:38,808 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:49:38,808 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:38,809 INFO L182 omatonBuilderFactory]: Interpolants [10272#(= (select |#valid| main_~head~0.base) 1), 10273#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 10274#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 10275#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 10276#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 10277#(and (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1)), 10278#(and (= 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))), 10279#(and (= 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)), 10280#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset))), 10281#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (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)))), 10282#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 10283#(and (= 1 (select |#valid| (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)))), 10284#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 10285#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 10286#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 10287#(= 1 (select |#valid| |main_#t~mem22.base|)), 10288#(= 1 (select |#valid| main_~x~0.base)), 10270#true, 10271#false] [2018-02-02 20:49:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:38,809 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-02 20:49:38,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-02 20:49:38,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-02-02 20:49:38,810 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 19 states. [2018-02-02 20:49:39,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:39,429 INFO L93 Difference]: Finished difference Result 311 states and 333 transitions. [2018-02-02 20:49:39,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-02 20:49:39,429 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2018-02-02 20:49:39,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:39,430 INFO L225 Difference]: With dead ends: 311 [2018-02-02 20:49:39,430 INFO L226 Difference]: Without dead ends: 311 [2018-02-02 20:49:39,431 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=224, Invalid=898, Unknown=0, NotChecked=0, Total=1122 [2018-02-02 20:49:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2018-02-02 20:49:39,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 230. [2018-02-02 20:49:39,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-02-02 20:49:39,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 248 transitions. [2018-02-02 20:49:39,435 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 248 transitions. Word has length 51 [2018-02-02 20:49:39,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:39,435 INFO L432 AbstractCegarLoop]: Abstraction has 230 states and 248 transitions. [2018-02-02 20:49:39,435 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-02 20:49:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 248 transitions. [2018-02-02 20:49:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-02 20:49:39,436 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:39,436 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, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:39,436 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:39,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1471342329, now seen corresponding path program 1 times [2018-02-02 20:49:39,437 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:39,448 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:39,862 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:39,863 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:49:39,863 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:39,863 INFO L182 omatonBuilderFactory]: Interpolants [10860#true, 10861#false, 10862#(= (select |#valid| main_~head~0.base) 1), 10863#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 10864#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc5.base|)) (= main_~x~0.base main_~head~0.base)), 10865#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (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)), 10866#(and (= 1 (select |#valid| main_~x~0.base)) (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.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_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 10867#(and (= 12 (select |#length| |main_#t~mem9.base|)) (= |main_#t~mem9.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10868#(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 |#length| main_~x~0.base) 12)), 10869#(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) (= (select |#length| main_~x~0.base) 12)), 10870#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.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~malloc12.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_#t~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 10871#(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)) (= 12 (select |#length| main_~x~0.base)) (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))), 10872#(and (= 12 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))), 10873#(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)) (= 12 (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))), 10874#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10875#(and (= 12 (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))), 10876#(and (= 12 (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))), 10877#(and (= 12 (select |#length| |main_#t~mem22.base|)) (= 0 |main_#t~mem22.offset|)), 10878#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 20:49:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:39,863 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-02 20:49:39,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-02 20:49:39,864 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-02-02 20:49:39,864 INFO L87 Difference]: Start difference. First operand 230 states and 248 transitions. Second operand 19 states. [2018-02-02 20:49:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:40,617 INFO L93 Difference]: Finished difference Result 342 states and 364 transitions. [2018-02-02 20:49:40,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-02 20:49:40,617 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2018-02-02 20:49:40,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:40,618 INFO L225 Difference]: With dead ends: 342 [2018-02-02 20:49:40,618 INFO L226 Difference]: Without dead ends: 342 [2018-02-02 20:49:40,619 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=838, Unknown=0, NotChecked=0, Total=1056 [2018-02-02 20:49:40,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-02-02 20:49:40,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 230. [2018-02-02 20:49:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-02-02 20:49:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 247 transitions. [2018-02-02 20:49:40,621 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 247 transitions. Word has length 51 [2018-02-02 20:49:40,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:40,621 INFO L432 AbstractCegarLoop]: Abstraction has 230 states and 247 transitions. [2018-02-02 20:49:40,621 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-02 20:49:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 247 transitions. [2018-02-02 20:49:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-02 20:49:40,621 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:40,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:40,622 INFO L371 AbstractCegarLoop]: === Iteration 29 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:40,622 INFO L82 PathProgramCache]: Analyzing trace with hash 715900679, now seen corresponding path program 1 times [2018-02-02 20:49:40,622 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:40,629 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:41,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:41,110 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:41,111 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-02-02 20:49:41,111 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:41,111 INFO L182 omatonBuilderFactory]: Interpolants [11488#(and (= main_~x~0.offset main_~head~0.offset) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)), 11489#(and (= main_~x~0.offset main_~head~0.offset) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.offset 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)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)), 11490#(and (or (and (= |main_#t~mem16.base| main_~head~0.base) (not (= (+ |main_#t~mem16.offset| 8) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| |main_#t~mem16.base|) main_~head~0.offset) main_~head~0.base)) (and (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|))) (not (= 0 main_~head~0.base))), 11491#(and (or (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (not (= 0 main_~head~0.base))), 11492#(and (or (and (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0) |old(#valid)|) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (not (= 0 main_~head~0.base))), 11493#(and (not (= 0 main_~x~0.base)) (or (and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (store (store |#valid| main_~x~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 11494#(and (or (and (= |old(#valid)| (store (store |#valid| |main_#t~mem27.base| 0) main_~x~0.base 0)) (not (= 0 |main_#t~mem27.base|))) (= |main_#t~mem27.base| main_~x~0.base)) (not (= 0 main_~x~0.base))), 11495#(and (not (= 0 main_~x~0.base)) (or (= 0 (select |#valid| main_~x~0.base)) (= (store |#valid| main_~x~0.base 0) |old(#valid)|))), 11479#true, 11480#false, 11481#(= |#valid| |old(#valid)|), 11482#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 11483#(and (= 0 main_~head~0.offset) (not (= 0 main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|)), 11484#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|)), 11485#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (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)), 11486#(and (not (= 0 |main_#t~malloc12.base|)) (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= |old(#valid)| (store (store |#valid| main_~head~0.base 0) |main_#t~malloc12.base| 0)) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 11487#(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) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.offset 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)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|))] [2018-02-02 20:49:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:41,111 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-02 20:49:41,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-02 20:49:41,111 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-02-02 20:49:41,112 INFO L87 Difference]: Start difference. First operand 230 states and 247 transitions. Second operand 17 states. [2018-02-02 20:49:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:41,663 INFO L93 Difference]: Finished difference Result 243 states and 260 transitions. [2018-02-02 20:49:41,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-02 20:49:41,663 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 53 [2018-02-02 20:49:41,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:41,664 INFO L225 Difference]: With dead ends: 243 [2018-02-02 20:49:41,664 INFO L226 Difference]: Without dead ends: 233 [2018-02-02 20:49:41,664 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2018-02-02 20:49:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-02-02 20:49:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 222. [2018-02-02 20:49:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-02-02 20:49:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 238 transitions. [2018-02-02 20:49:41,667 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 238 transitions. Word has length 53 [2018-02-02 20:49:41,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:41,667 INFO L432 AbstractCegarLoop]: Abstraction has 222 states and 238 transitions. [2018-02-02 20:49:41,667 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-02 20:49:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 238 transitions. [2018-02-02 20:49:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-02-02 20:49:41,668 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:41,668 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:49:41,668 INFO L371 AbstractCegarLoop]: === Iteration 30 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:41,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1909599630, now seen corresponding path program 2 times [2018-02-02 20:49:41,669 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:41,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-02-02 20:49:41,767 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:49:41,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-02 20:49:41,767 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:41,768 INFO L182 omatonBuilderFactory]: Interpolants [11984#false, 11985#(= 0 |main_#t~malloc0.offset|), 11986#(= main_~head~0.offset 0), 11987#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 11988#(and (= main_~head~0.offset main_~x~0.offset) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) |main_#t~mem18|) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 11989#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 11990#(and (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0)), 11991#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0)), 11992#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= |main_#t~mem24| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0)), 11983#true] [2018-02-02 20:49:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-02-02 20:49:41,768 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-02 20:49:41,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-02 20:49:41,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-02-02 20:49:41,768 INFO L87 Difference]: Start difference. First operand 222 states and 238 transitions. Second operand 10 states. [2018-02-02 20:49:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:41,926 INFO L93 Difference]: Finished difference Result 235 states and 240 transitions. [2018-02-02 20:49:41,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 20:49:41,926 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2018-02-02 20:49:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:41,926 INFO L225 Difference]: With dead ends: 235 [2018-02-02 20:49:41,927 INFO L226 Difference]: Without dead ends: 206 [2018-02-02 20:49:41,927 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:49:41,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-02-02 20:49:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 185. [2018-02-02 20:49:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-02-02 20:49:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 198 transitions. [2018-02-02 20:49:41,929 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 198 transitions. Word has length 54 [2018-02-02 20:49:41,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:41,929 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 198 transitions. [2018-02-02 20:49:41,929 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-02 20:49:41,929 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 198 transitions. [2018-02-02 20:49:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-02 20:49:41,929 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:41,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:41,930 INFO L371 AbstractCegarLoop]: === Iteration 31 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:41,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1614187731, now seen corresponding path program 2 times [2018-02-02 20:49:41,930 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:41,943 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:42,359 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:42,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-02 20:49:42,360 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:42,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:42,360 INFO L182 omatonBuilderFactory]: Interpolants [12425#true, 12426#false, 12427#(= 1 (select |#valid| main_~head~0.base)), 12428#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 12429#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 12430#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 12431#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 12432#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 12433#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 12434#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 12435#(and (= 1 (select |#valid| |main_#t~malloc12.base|)) (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 12436#(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| (select (select |#memory_$Pointer$.base| main_~x~0.base) (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)))), 12437#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) 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.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 12438#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.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))))), 12439#(= 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)))), 12440#(= 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)))), 12441#(or (= 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)))) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))), 12442#(or (= 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)))) (not (= 0 |main_#t~mem19|))), 12443#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 12444#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 12445#(= 1 (select |#valid| |main_#t~mem20.base|)), 12446#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:49:42,360 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:42,361 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-02 20:49:42,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-02 20:49:42,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-02-02 20:49:42,361 INFO L87 Difference]: Start difference. First operand 185 states and 198 transitions. Second operand 22 states. [2018-02-02 20:49:43,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:43,237 INFO L93 Difference]: Finished difference Result 257 states and 271 transitions. [2018-02-02 20:49:43,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:49:43,237 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2018-02-02 20:49:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:43,237 INFO L225 Difference]: With dead ends: 257 [2018-02-02 20:49:43,238 INFO L226 Difference]: Without dead ends: 257 [2018-02-02 20:49:43,238 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2018-02-02 20:49:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-02-02 20:49:43,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 193. [2018-02-02 20:49:43,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-02-02 20:49:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 207 transitions. [2018-02-02 20:49:43,240 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 207 transitions. Word has length 60 [2018-02-02 20:49:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:43,240 INFO L432 AbstractCegarLoop]: Abstraction has 193 states and 207 transitions. [2018-02-02 20:49:43,240 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-02 20:49:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 207 transitions. [2018-02-02 20:49:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-02 20:49:43,240 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:43,241 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:43,241 INFO L371 AbstractCegarLoop]: === Iteration 32 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:43,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1614187732, now seen corresponding path program 2 times [2018-02-02 20:49:43,241 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:43,250 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:43,652 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:43,652 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-02 20:49:43,653 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:43,653 INFO L182 omatonBuilderFactory]: Interpolants [12933#true, 12934#false, 12935#(= 1 (select |#valid| main_~head~0.base)), 12936#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 12937#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 12938#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 12939#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 12940#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 12941#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 12942#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 12943#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= 12 (select |#length| |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 12944#(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))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 12945#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) 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) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 12946#(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))) (= 12 (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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 12947#(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))) (= 12 (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))))), 12948#(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))) (= 12 (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))))), 12949#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (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))) (= 12 (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)))))), 12950#(or (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))) (= 12 (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 (= 0 |main_#t~mem19|))), 12951#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 12952#(and (= 12 (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))), 12953#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 12954#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 20:49:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:43,653 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-02 20:49:43,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-02 20:49:43,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2018-02-02 20:49:43,654 INFO L87 Difference]: Start difference. First operand 193 states and 207 transitions. Second operand 22 states. [2018-02-02 20:49:44,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:44,618 INFO L93 Difference]: Finished difference Result 296 states and 310 transitions. [2018-02-02 20:49:44,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:49:44,618 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2018-02-02 20:49:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:44,619 INFO L225 Difference]: With dead ends: 296 [2018-02-02 20:49:44,619 INFO L226 Difference]: Without dead ends: 296 [2018-02-02 20:49:44,620 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1349, Unknown=0, NotChecked=0, Total=1560 [2018-02-02 20:49:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-02-02 20:49:44,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 194. [2018-02-02 20:49:44,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-02-02 20:49:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 208 transitions. [2018-02-02 20:49:44,622 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 208 transitions. Word has length 60 [2018-02-02 20:49:44,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:44,623 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 208 transitions. [2018-02-02 20:49:44,623 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-02 20:49:44,623 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 208 transitions. [2018-02-02 20:49:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-02 20:49:44,623 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:44,623 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, 1, 1, 1, 1] [2018-02-02 20:49:44,623 INFO L371 AbstractCegarLoop]: === Iteration 33 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:44,623 INFO L82 PathProgramCache]: Analyzing trace with hash -263081712, now seen corresponding path program 1 times [2018-02-02 20:49:44,624 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:44,633 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:44,949 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:44,949 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-02 20:49:44,949 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:44,949 INFO L182 omatonBuilderFactory]: Interpolants [13481#true, 13482#false, 13483#(= 1 (select |#valid| main_~head~0.base)), 13484#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 13485#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 13486#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 13487#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 13488#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 13489#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 13490#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 13491#(and (= 1 (select |#valid| |main_#t~malloc12.base|)) (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 13492#(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| (select (select |#memory_$Pointer$.base| main_~x~0.base) (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)))), 13493#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) 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.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 13494#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.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))))), 13495#(= 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)))), 13496#(= 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)))), 13497#(or (= 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)))) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))), 13498#(or (= 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)))) (not (= 0 |main_#t~mem19|))), 13499#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 13500#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 13501#(= 1 (select |#valid| |main_#t~mem22.base|)), 13502#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:49:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:44,950 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-02 20:49:44,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-02 20:49:44,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-02-02 20:49:44,950 INFO L87 Difference]: Start difference. First operand 194 states and 208 transitions. Second operand 22 states. [2018-02-02 20:49:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:45,735 INFO L93 Difference]: Finished difference Result 270 states and 285 transitions. [2018-02-02 20:49:45,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-02 20:49:45,735 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2018-02-02 20:49:45,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:45,736 INFO L225 Difference]: With dead ends: 270 [2018-02-02 20:49:45,736 INFO L226 Difference]: Without dead ends: 270 [2018-02-02 20:49:45,736 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=291, Invalid=1431, Unknown=0, NotChecked=0, Total=1722 [2018-02-02 20:49:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-02-02 20:49:45,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 202. [2018-02-02 20:49:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-02-02 20:49:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 217 transitions. [2018-02-02 20:49:45,739 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 217 transitions. Word has length 60 [2018-02-02 20:49:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:45,739 INFO L432 AbstractCegarLoop]: Abstraction has 202 states and 217 transitions. [2018-02-02 20:49:45,739 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-02 20:49:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 217 transitions. [2018-02-02 20:49:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-02 20:49:45,739 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:45,739 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, 1, 1, 1, 1] [2018-02-02 20:49:45,739 INFO L371 AbstractCegarLoop]: === Iteration 34 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:45,739 INFO L82 PathProgramCache]: Analyzing trace with hash -263081711, now seen corresponding path program 1 times [2018-02-02 20:49:45,740 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:45,747 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:46,120 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:46,120 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-02 20:49:46,120 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:46,120 INFO L182 omatonBuilderFactory]: Interpolants [14016#false, 14017#(= 1 (select |#valid| main_~head~0.base)), 14018#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 14019#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 14020#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 14021#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 14022#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 14023#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 14024#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 14025#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.offset|) (= 12 (select |#length| |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 14026#(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))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 14027#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) 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) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 14028#(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))) (= 12 (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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 14029#(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))) (= 12 (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))))), 14030#(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))) (= 12 (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))))), 14031#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (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))) (= 12 (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)))))), 14032#(or (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))) (= 12 (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 (= 0 |main_#t~mem19|))), 14033#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 14034#(and (= 12 (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))), 14035#(and (= 12 (select |#length| |main_#t~mem22.base|)) (= 0 |main_#t~mem22.offset|)), 14036#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12)), 14015#true] [2018-02-02 20:49:46,121 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:46,121 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-02 20:49:46,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-02 20:49:46,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2018-02-02 20:49:46,121 INFO L87 Difference]: Start difference. First operand 202 states and 217 transitions. Second operand 22 states. [2018-02-02 20:49:47,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:47,130 INFO L93 Difference]: Finished difference Result 299 states and 313 transitions. [2018-02-02 20:49:47,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:49:47,130 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2018-02-02 20:49:47,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:47,131 INFO L225 Difference]: With dead ends: 299 [2018-02-02 20:49:47,131 INFO L226 Difference]: Without dead ends: 299 [2018-02-02 20:49:47,131 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=211, Invalid=1349, Unknown=0, NotChecked=0, Total=1560 [2018-02-02 20:49:47,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-02-02 20:49:47,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 202. [2018-02-02 20:49:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-02-02 20:49:47,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 216 transitions. [2018-02-02 20:49:47,134 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 216 transitions. Word has length 60 [2018-02-02 20:49:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:47,134 INFO L432 AbstractCegarLoop]: Abstraction has 202 states and 216 transitions. [2018-02-02 20:49:47,134 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-02 20:49:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 216 transitions. [2018-02-02 20:49:47,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-02 20:49:47,134 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:47,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:47,134 INFO L371 AbstractCegarLoop]: === Iteration 35 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:47,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1475983525, now seen corresponding path program 1 times [2018-02-02 20:49:47,135 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:47,142 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:47,393 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:47,393 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-02-02 20:49:47,393 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:47,393 INFO L182 omatonBuilderFactory]: Interpolants [14592#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 14593#(= 0 |main_#t~mem27.offset|), 14574#true, 14575#false, 14576#(= 0 |main_#t~malloc0.offset|), 14577#(= 0 main_~head~0.offset), 14578#(and (= 0 main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1)), 14579#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1) (= 0 main_~x~0.offset)), 14580#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc5.base|)) (= main_~x~0.base main_~head~0.base) (= 0 main_~x~0.offset)), 14581#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (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 main_~x~0.offset)), 14582#(and (= 1 (select |#valid| main_~x~0.base)) (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|)) (= 0 main_~x~0.offset)), 14583#(and (= 12 (select |#length| |main_#t~mem9.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.offset|) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1)), 14584#(and (or (and (or (<= 1 main_~x~0.offset) (<= (+ main_~x~0.offset 1) 0)) (= (select |#length| main_~x~0.base) 12)) (= 0 (select (select |#memory_$Pointer$.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))), 14585#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (or (and (<= (+ main_~x~0.offset 1) 0) (= (select |#length| main_~x~0.base) 12)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 14586#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (or (<= (+ main_~x~0.offset 1) 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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))), 14587#(and (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))), 14588#(and (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 14589#(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))), 14590#(and (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 14591#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))] [2018-02-02 20:49:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:47,393 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-02 20:49:47,394 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-02 20:49:47,394 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-02-02 20:49:47,394 INFO L87 Difference]: Start difference. First operand 202 states and 216 transitions. Second operand 20 states. [2018-02-02 20:49:48,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:48,110 INFO L93 Difference]: Finished difference Result 292 states and 305 transitions. [2018-02-02 20:49:48,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-02 20:49:48,110 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 63 [2018-02-02 20:49:48,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:48,111 INFO L225 Difference]: With dead ends: 292 [2018-02-02 20:49:48,111 INFO L226 Difference]: Without dead ends: 292 [2018-02-02 20:49:48,112 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=348, Invalid=1544, Unknown=0, NotChecked=0, Total=1892 [2018-02-02 20:49:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-02-02 20:49:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 248. [2018-02-02 20:49:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2018-02-02 20:49:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 271 transitions. [2018-02-02 20:49:48,114 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 271 transitions. Word has length 63 [2018-02-02 20:49:48,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:48,114 INFO L432 AbstractCegarLoop]: Abstraction has 248 states and 271 transitions. [2018-02-02 20:49:48,114 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-02 20:49:48,114 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 271 transitions. [2018-02-02 20:49:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-02 20:49:48,114 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:48,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:48,114 INFO L371 AbstractCegarLoop]: === Iteration 36 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:48,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1080953251, now seen corresponding path program 1 times [2018-02-02 20:49:48,115 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:48,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:48,629 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:48,629 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-02 20:49:48,629 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:48,629 INFO L182 omatonBuilderFactory]: Interpolants [15200#(and (or (not (= main_~head~0.base (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| main_~head~0.base))), 15201#(and (= 1 (select |#valid| main_~x~0.base)) (or (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 15202#(and (= 1 (select |#valid| main_~x~0.base)) (or (= 1 (select (store |#valid| |main_#t~mem27.base| 0) main_~x~0.base)) (not (= 0 |main_#t~mem27.offset|)))), 15203#(= 1 (select |#valid| main_~x~0.base)), 15182#true, 15183#false, 15184#(= 0 |main_#t~malloc0.offset|), 15185#(= 0 main_~head~0.offset), 15186#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base)), 15187#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base)), 15188#(and (= |main_#t~mem9.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 15189#(or (<= (+ main_~x~0.offset 1) 0) (and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)) (and (not (= (+ main_~x~0.offset 8) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)) (and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (and (= 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_~x~0.base main_~head~0.base)))), 15190#(and (or (<= (+ main_~x~0.offset 1) 0) (and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.offset| 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)) (and (= 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_~x~0.base main_~head~0.base))) (and (not (= (+ main_~x~0.offset 8) main_~head~0.offset)) (not (= 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)), 15191#(and (or (<= (+ main_~x~0.offset 1) 0) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (and (= 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_~x~0.base main_~head~0.base)))) (= (select |#valid| main_~x~0.base) 1)), 15192#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (or (<= (+ main_~x~0.offset 1) 0) (and (not (= main_~head~0.base |main_#t~malloc12.base|)) (not (= 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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))) (and (not (= main_~head~0.base |main_#t~malloc12.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_#t~malloc12.base|)) main_~head~0.base) main_~head~0.offset)))))), 15193#(and (or (and (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_~x~0.base) main_~x~0.offset)))) (and (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))))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 15194#(and (or (and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))) (and (not (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))))) (not (= main_~x~0.base |main_#t~mem14.base|))), 15195#(or (and (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_~x~0.base) main_~x~0.offset)))) (and (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))))), 15196#(or (and (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (and (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 15197#(or (not (= main_~head~0.base (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)))), 15198#(and (or (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (= main_~x~0.base main_~head~0.base)), 15199#(and (or (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base main_~head~0.base))] [2018-02-02 20:49:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:48,629 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-02 20:49:48,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-02 20:49:48,630 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-02-02 20:49:48,630 INFO L87 Difference]: Start difference. First operand 248 states and 271 transitions. Second operand 22 states. [2018-02-02 20:49:49,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:49,721 INFO L93 Difference]: Finished difference Result 298 states and 309 transitions. [2018-02-02 20:49:49,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-02 20:49:49,721 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2018-02-02 20:49:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:49,722 INFO L225 Difference]: With dead ends: 298 [2018-02-02 20:49:49,722 INFO L226 Difference]: Without dead ends: 298 [2018-02-02 20:49:49,722 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=413, Invalid=1657, Unknown=0, NotChecked=0, Total=2070 [2018-02-02 20:49:49,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-02-02 20:49:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 250. [2018-02-02 20:49:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-02-02 20:49:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 273 transitions. [2018-02-02 20:49:49,726 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 273 transitions. Word has length 65 [2018-02-02 20:49:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:49,726 INFO L432 AbstractCegarLoop]: Abstraction has 250 states and 273 transitions. [2018-02-02 20:49:49,726 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-02 20:49:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 273 transitions. [2018-02-02 20:49:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-02 20:49:49,727 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:49,727 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] [2018-02-02 20:49:49,727 INFO L371 AbstractCegarLoop]: === Iteration 37 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:49,727 INFO L82 PathProgramCache]: Analyzing trace with hash -693648161, now seen corresponding path program 3 times [2018-02-02 20:49:49,728 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:49,742 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:50,191 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:50,191 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-02 20:49:50,191 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:50,192 INFO L182 omatonBuilderFactory]: Interpolants [15808#(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)) (not (= main_~x~0.base main_~head~0.base))), 15809#(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)) (not (= main_~x~0.base main_~head~0.base))), 15810#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base))), 15811#(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 (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)))), 15812#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 15813#(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)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 15814#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 15815#(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 main_~head~0.base))), 15816#(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 main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 15817#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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_#t~malloc12.base|)) main_~head~0.base) main_~head~0.offset)))), 15818#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (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)))), 15819#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 15820#(and (= 1 (select |#valid| (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)))), 15821#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 15822#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 15823#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 15824#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 15825#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 |main_#t~mem19|))), 15826#(= 1 (select |#valid| |main_#t~mem20.base|)), 15827#(= 1 (select |#valid| main_~x~0.base)), 15800#true, 15801#false, 15802#(= 1 (select |#valid| main_~head~0.base)), 15803#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 15804#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 15805#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 15806#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 15807#(and (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)))] [2018-02-02 20:49:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:50,192 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-02 20:49:50,192 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-02 20:49:50,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2018-02-02 20:49:50,192 INFO L87 Difference]: Start difference. First operand 250 states and 273 transitions. Second operand 28 states. [2018-02-02 20:49:51,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:51,314 INFO L93 Difference]: Finished difference Result 359 states and 387 transitions. [2018-02-02 20:49:51,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-02-02 20:49:51,314 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 65 [2018-02-02 20:49:51,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:51,316 INFO L225 Difference]: With dead ends: 359 [2018-02-02 20:49:51,316 INFO L226 Difference]: Without dead ends: 359 [2018-02-02 20:49:51,317 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=627, Invalid=2913, Unknown=0, NotChecked=0, Total=3540 [2018-02-02 20:49:51,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2018-02-02 20:49:51,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 287. [2018-02-02 20:49:51,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2018-02-02 20:49:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 313 transitions. [2018-02-02 20:49:51,320 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 313 transitions. Word has length 65 [2018-02-02 20:49:51,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:51,321 INFO L432 AbstractCegarLoop]: Abstraction has 287 states and 313 transitions. [2018-02-02 20:49:51,321 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-02 20:49:51,321 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 313 transitions. [2018-02-02 20:49:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-02 20:49:51,321 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:51,322 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] [2018-02-02 20:49:51,322 INFO L371 AbstractCegarLoop]: === Iteration 38 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:51,322 INFO L82 PathProgramCache]: Analyzing trace with hash -693648160, now seen corresponding path program 3 times [2018-02-02 20:49:51,322 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:51,337 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:51,928 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:51,928 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-02 20:49:51,928 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:51,929 INFO L182 omatonBuilderFactory]: Interpolants [16538#true, 16539#false, 16540#(= 1 (select |#valid| main_~head~0.base)), 16541#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 16542#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc5.base|)) (= main_~x~0.base main_~head~0.base)), 16543#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (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)), 16544#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 16545#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16546#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16547#(and (= 1 (select |#valid| main_~x~0.base)) (= 12 (select |#length| (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))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16548#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (= 12 (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~malloc5.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= 1 (select |#valid| 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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset))), 16549#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| 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_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16550#(and (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 16551#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| 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_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16552#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16553#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16554#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (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)), 16555#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 12 (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~malloc12.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_#t~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 16556#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 12 (select |#length| (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))), 16557#(and (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 16558#(and (= 12 (select |#length| (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))), 16559#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16560#(and (= 12 (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))), 16561#(and (= 12 (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))), 16562#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= 12 (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)))), 16563#(or (and (= 12 (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 (= 0 |main_#t~mem19|))), 16564#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 16565#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 20:49:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:51,929 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-02 20:49:51,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-02 20:49:51,930 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2018-02-02 20:49:51,930 INFO L87 Difference]: Start difference. First operand 287 states and 313 transitions. Second operand 28 states. [2018-02-02 20:49:53,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:53,351 INFO L93 Difference]: Finished difference Result 331 states and 353 transitions. [2018-02-02 20:49:53,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-02-02 20:49:53,351 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 65 [2018-02-02 20:49:53,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:53,352 INFO L225 Difference]: With dead ends: 331 [2018-02-02 20:49:53,352 INFO L226 Difference]: Without dead ends: 331 [2018-02-02 20:49:53,353 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=558, Invalid=2982, Unknown=0, NotChecked=0, Total=3540 [2018-02-02 20:49:53,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-02-02 20:49:53,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 301. [2018-02-02 20:49:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-02-02 20:49:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 328 transitions. [2018-02-02 20:49:53,355 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 328 transitions. Word has length 65 [2018-02-02 20:49:53,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:53,355 INFO L432 AbstractCegarLoop]: Abstraction has 301 states and 328 transitions. [2018-02-02 20:49:53,355 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-02 20:49:53,355 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 328 transitions. [2018-02-02 20:49:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-02 20:49:53,355 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:53,356 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, 1, 1, 1, 1] [2018-02-02 20:49:53,356 INFO L371 AbstractCegarLoop]: === Iteration 39 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:53,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1724049692, now seen corresponding path program 2 times [2018-02-02 20:49:53,356 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:53,365 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:53,697 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:53,697 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-02 20:49:53,697 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:53,697 INFO L182 omatonBuilderFactory]: Interpolants [17280#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (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)))), 17281#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 17282#(and (= 1 (select |#valid| (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)))), 17283#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 17284#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 17285#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 17286#(= 1 (select |#valid| |main_#t~mem22.base|)), 17287#(= 1 (select |#valid| main_~x~0.base)), 17262#true, 17263#false, 17264#(= (select |#valid| main_~head~0.base) 1), 17265#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 17266#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 17267#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 17268#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 17269#(and (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1)), 17270#(and (= 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))), 17271#(and (= 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)), 17272#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 17273#(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 (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)))), 17274#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 17275#(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)) (= (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)))), 17276#(and (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 17277#(and (= 1 (select |#valid| (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))), 17278#(and (= 1 (select |#valid| (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)), 17279#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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_#t~malloc12.base|)) main_~head~0.base) main_~head~0.offset))))] [2018-02-02 20:49:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:53,697 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:49:53,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:49:53,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:49:53,698 INFO L87 Difference]: Start difference. First operand 301 states and 328 transitions. Second operand 26 states. [2018-02-02 20:49:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:54,664 INFO L93 Difference]: Finished difference Result 383 states and 412 transitions. [2018-02-02 20:49:54,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-02 20:49:54,664 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 65 [2018-02-02 20:49:54,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:54,665 INFO L225 Difference]: With dead ends: 383 [2018-02-02 20:49:54,665 INFO L226 Difference]: Without dead ends: 383 [2018-02-02 20:49:54,666 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=557, Invalid=2413, Unknown=0, NotChecked=0, Total=2970 [2018-02-02 20:49:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-02-02 20:49:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 309. [2018-02-02 20:49:54,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-02-02 20:49:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 337 transitions. [2018-02-02 20:49:54,669 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 337 transitions. Word has length 65 [2018-02-02 20:49:54,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:54,669 INFO L432 AbstractCegarLoop]: Abstraction has 309 states and 337 transitions. [2018-02-02 20:49:54,669 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:49:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 337 transitions. [2018-02-02 20:49:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-02 20:49:54,670 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:54,670 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, 1, 1, 1, 1] [2018-02-02 20:49:54,670 INFO L371 AbstractCegarLoop]: === Iteration 40 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:54,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1724049693, now seen corresponding path program 2 times [2018-02-02 20:49:54,671 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:54,685 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:55,152 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:55,152 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-02 20:49:55,152 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:55,153 INFO L182 omatonBuilderFactory]: Interpolants [18048#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (= 12 (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~malloc5.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= (select |#valid| main_~head~0.base) 1) (= 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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset))), 18049#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 12 (select |#length| (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 18050#(and (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 18051#(and (= 12 (select |#length| (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 18052#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 18053#(and (= 12 (select |#length| (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))), 18054#(and (= 12 (select |#length| (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)), 18055#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 12 (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~malloc12.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_#t~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 18056#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 12 (select |#length| (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))), 18057#(and (= 12 (select |#length| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 18058#(and (= 12 (select |#length| (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))), 18059#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 18060#(and (= 12 (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))), 18061#(and (= 12 (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))), 18062#(and (= 12 (select |#length| |main_#t~mem22.base|)) (= 0 |main_#t~mem22.offset|)), 18063#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12)), 18038#true, 18039#false, 18040#(= (select |#valid| main_~head~0.base) 1), 18041#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 18042#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc5.base|)) (= main_~x~0.base main_~head~0.base)), 18043#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (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)), 18044#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 18045#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 18046#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (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))), 18047#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| 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 |#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))] [2018-02-02 20:49:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:55,153 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:49:55,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:49:55,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:49:55,153 INFO L87 Difference]: Start difference. First operand 309 states and 337 transitions. Second operand 26 states. [2018-02-02 20:49:56,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:56,373 INFO L93 Difference]: Finished difference Result 337 states and 358 transitions. [2018-02-02 20:49:56,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-02 20:49:56,374 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 65 [2018-02-02 20:49:56,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:56,374 INFO L225 Difference]: With dead ends: 337 [2018-02-02 20:49:56,374 INFO L226 Difference]: Without dead ends: 337 [2018-02-02 20:49:56,375 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=521, Invalid=2559, Unknown=0, NotChecked=0, Total=3080 [2018-02-02 20:49:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-02-02 20:49:56,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 309. [2018-02-02 20:49:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-02-02 20:49:56,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 335 transitions. [2018-02-02 20:49:56,377 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 335 transitions. Word has length 65 [2018-02-02 20:49:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:56,377 INFO L432 AbstractCegarLoop]: Abstraction has 309 states and 335 transitions. [2018-02-02 20:49:56,377 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:49:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 335 transitions. [2018-02-02 20:49:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-02-02 20:49:56,378 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:56,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:56,378 INFO L371 AbstractCegarLoop]: === Iteration 41 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:56,378 INFO L82 PathProgramCache]: Analyzing trace with hash 586017181, now seen corresponding path program 1 times [2018-02-02 20:49:56,378 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:56,386 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:56,791 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:56,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-02 20:49:56,791 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:56,791 INFO L182 omatonBuilderFactory]: Interpolants [18784#(and (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)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 18785#(and (not (= |main_#t~mem14.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (not (= main_~x~0.base |main_#t~mem14.base|))), 18786#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 18787#(= 0 (select (select (store |#memory_int| |main_#t~mem16.base| (store (select |#memory_int| |main_#t~mem16.base|) (+ |main_#t~mem16.offset| 8) 2)) main_~head~0.base) (+ main_~head~0.offset 8))), 18788#(= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))), 18789#(and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (= main_~x~0.base main_~head~0.base)), 18790#(or (not (= 1 (select |#valid| main_~x~0.base))) (not (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select |#valid| main_~x~0.base)))), 18791#(not (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 1)), 18792#(not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 1)), 18793#(not (= |main_#t~mem24| 1)), 18770#true, 18771#false, 18772#(= 0 |main_#t~malloc0.offset|), 18773#(= main_~head~0.offset 0), 18774#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 18775#(and (= 1 (select |#valid| main_~head~0.base)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0)), 18776#(and (= 1 (select |#valid| main_~head~0.base)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base)), 18777#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base)), 18778#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base)), 18779#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 18780#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 18781#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8) 0)) main_~head~0.base) (+ main_~head~0.offset 8)))), 18782#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8) 1)) main_~head~0.base) (+ main_~head~0.offset 8)))), 18783#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= |main_#t~malloc12.base| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))))] [2018-02-02 20:49:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:56,791 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-02 20:49:56,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-02 20:49:56,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2018-02-02 20:49:56,792 INFO L87 Difference]: Start difference. First operand 309 states and 335 transitions. Second operand 24 states. [2018-02-02 20:49:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:57,534 INFO L93 Difference]: Finished difference Result 327 states and 342 transitions. [2018-02-02 20:49:57,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-02-02 20:49:57,534 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 67 [2018-02-02 20:49:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:57,535 INFO L225 Difference]: With dead ends: 327 [2018-02-02 20:49:57,535 INFO L226 Difference]: Without dead ends: 313 [2018-02-02 20:49:57,536 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=508, Invalid=1654, Unknown=0, NotChecked=0, Total=2162 [2018-02-02 20:49:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-02-02 20:49:57,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 281. [2018-02-02 20:49:57,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-02-02 20:49:57,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 304 transitions. [2018-02-02 20:49:57,538 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 304 transitions. Word has length 67 [2018-02-02 20:49:57,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:57,538 INFO L432 AbstractCegarLoop]: Abstraction has 281 states and 304 transitions. [2018-02-02 20:49:57,538 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-02 20:49:57,538 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 304 transitions. [2018-02-02 20:49:57,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-02-02 20:49:57,538 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:57,539 INFO L351 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:49:57,539 INFO L371 AbstractCegarLoop]: === Iteration 42 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:57,539 INFO L82 PathProgramCache]: Analyzing trace with hash 45834249, now seen corresponding path program 4 times [2018-02-02 20:49:57,539 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:57,549 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:58,013 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:58,013 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-02 20:49:58,013 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:58,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:58,014 INFO L182 omatonBuilderFactory]: Interpolants [19456#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0)), 19457#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.offset|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= main_~head~0.offset 0)), 19458#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 19459#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 19460#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0)), 19461#(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)), 19462#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))), 19463#(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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem16.offset| 0) (= |main_#t~mem16.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~mem16.base| main_~head~0.base)) (= main_~head~0.offset 0)), 19464#(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_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 8)) 2) (= main_~head~0.offset 0)), 19465#(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_int| (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 8)) 2)), 19466#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (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_int| (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 8)) 2))), 19467#(or (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_int| (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 8)) 2)) (not (= 0 |main_#t~mem19|))), 19468#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 19469#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 19470#(and (= 0 |main_#t~mem20.offset|) (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)) 2)), 19471#(or (<= (+ main_~x~0.offset 1) 0) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 2)), 19472#(or (<= (+ main_~x~0.offset 1) 0) (= |main_#t~mem19| 2)), 19473#(<= (+ main_~x~0.offset 1) 0), 19448#true, 19449#false, 19450#(= 0 |main_#t~malloc0.offset|), 19451#(= main_~head~0.offset 0), 19452#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 19453#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 19454#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 19455#(and (= 1 (select |#valid| main_~x~0.base)) (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) (= main_~head~0.offset 0))] [2018-02-02 20:49:58,014 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:58,014 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:49:58,014 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:49:58,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:49:58,014 INFO L87 Difference]: Start difference. First operand 281 states and 304 transitions. Second operand 26 states. [2018-02-02 20:49:59,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:49:59,215 INFO L93 Difference]: Finished difference Result 295 states and 308 transitions. [2018-02-02 20:49:59,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:49:59,215 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2018-02-02 20:49:59,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:49:59,216 INFO L225 Difference]: With dead ends: 295 [2018-02-02 20:49:59,216 INFO L226 Difference]: Without dead ends: 290 [2018-02-02 20:49:59,217 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=403, Invalid=2249, Unknown=0, NotChecked=0, Total=2652 [2018-02-02 20:49:59,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-02-02 20:49:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 262. [2018-02-02 20:49:59,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-02-02 20:49:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 279 transitions. [2018-02-02 20:49:59,218 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 279 transitions. Word has length 69 [2018-02-02 20:49:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:49:59,218 INFO L432 AbstractCegarLoop]: Abstraction has 262 states and 279 transitions. [2018-02-02 20:49:59,219 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:49:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 279 transitions. [2018-02-02 20:49:59,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-02-02 20:49:59,219 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:49:59,219 INFO L351 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2018-02-02 20:49:59,219 INFO L371 AbstractCegarLoop]: === Iteration 43 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:49:59,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1831435194, now seen corresponding path program 2 times [2018-02-02 20:49:59,220 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:49:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:49:59,228 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:49:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:59,890 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:49:59,890 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-02 20:49:59,890 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:49:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:59,890 INFO L182 omatonBuilderFactory]: Interpolants [20096#(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)), 20097#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))), 20098#(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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem16.offset| 0) (= |main_#t~mem16.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~mem16.base| main_~head~0.base)) (= main_~head~0.offset 0)), 20099#(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_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 8)) 2) (= main_~head~0.offset 0)), 20100#(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_int| (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 8)) 2)), 20101#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (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_int| (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 8)) 2))), 20102#(or (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_int| (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 8)) 2)) (not (= 0 |main_#t~mem19|))), 20103#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 20104#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)) 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 20105#(and (= 0 |main_#t~mem20.offset|) (= (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)) 2)), 20106#(or (<= (+ main_~x~0.offset 1) 0) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 2)), 20107#(or (<= (+ main_~x~0.offset 1) 0) (and (= |main_#t~mem18| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 2))), 20108#(<= (+ main_~x~0.offset 1) 0), 20083#true, 20084#false, 20085#(= 0 |main_#t~malloc0.offset|), 20086#(= main_~head~0.offset 0), 20087#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 20088#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 20089#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 20090#(and (= 1 (select |#valid| main_~x~0.base)) (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) (= main_~head~0.offset 0)), 20091#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0)), 20092#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.offset|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= main_~head~0.offset 0)), 20093#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 20094#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 20095#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0))] [2018-02-02 20:49:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:49:59,891 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:49:59,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:49:59,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:49:59,891 INFO L87 Difference]: Start difference. First operand 262 states and 279 transitions. Second operand 26 states. [2018-02-02 20:50:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:01,051 INFO L93 Difference]: Finished difference Result 285 states and 297 transitions. [2018-02-02 20:50:01,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:50:01,051 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2018-02-02 20:50:01,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:01,052 INFO L225 Difference]: With dead ends: 285 [2018-02-02 20:50:01,052 INFO L226 Difference]: Without dead ends: 271 [2018-02-02 20:50:01,052 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=401, Invalid=2251, Unknown=0, NotChecked=0, Total=2652 [2018-02-02 20:50:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-02-02 20:50:01,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 245. [2018-02-02 20:50:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-02-02 20:50:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 259 transitions. [2018-02-02 20:50:01,055 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 259 transitions. Word has length 69 [2018-02-02 20:50:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:01,055 INFO L432 AbstractCegarLoop]: Abstraction has 245 states and 259 transitions. [2018-02-02 20:50:01,055 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:50:01,055 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 259 transitions. [2018-02-02 20:50:01,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-02-02 20:50:01,056 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:01,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:01,056 INFO L371 AbstractCegarLoop]: === Iteration 44 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:01,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1457041330, now seen corresponding path program 1 times [2018-02-02 20:50:01,057 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:01,064 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:01,519 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:01,519 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-02 20:50:01,519 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:01,519 INFO L182 omatonBuilderFactory]: Interpolants [20691#true, 20692#false, 20693#(not (= 0 |main_#t~malloc0.base|)), 20694#(not (= 0 main_~head~0.base)), 20695#(and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base))), 20696#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 20697#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 20698#(and (= 1 (select |#valid| main_~x~0.base)) (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_~head~0.offset))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 20699#(and (= 1 (select |#valid| main_~x~0.base)) (not (= 0 main_~head~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~head~0.offset)))), 20700#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base))), 20701#(and (= 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 (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 20702#(and (= 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 (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 20703#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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_#t~malloc12.base|)) main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base))), 20704#(and (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 (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 20705#(and (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 20706#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 20707#(and (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base))), 20708#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base))), 20709#(and (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (not (= 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)), 20710#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (not (= 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))), 20711#(or (not (= 0 |main_#t~mem19|)) (and (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (not (= 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))), 20712#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem20.base|) (not (= main_~head~0.base |main_#t~mem20.base|)) (not (= 0 main_~head~0.base))), 20713#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base main_~x~0.base)) (not (= 0 main_~head~0.base))), 20714#(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_~head~0.base main_~x~0.base)) (not (= 0 main_~head~0.base))), 20715#(and (= 1 (select |#valid| (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))), 20716#(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))), 20717#(and (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~head~0.base))), 20718#(and (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem25.base|)) (not (= 0 main_~head~0.base))), 20719#(and (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)) (not (= 0 main_~head~0.base))), 20720#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:50:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:01,519 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-02 20:50:01,520 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-02 20:50:01,520 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2018-02-02 20:50:01,520 INFO L87 Difference]: Start difference. First operand 245 states and 259 transitions. Second operand 30 states. [2018-02-02 20:50:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:02,885 INFO L93 Difference]: Finished difference Result 291 states and 303 transitions. [2018-02-02 20:50:02,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-02-02 20:50:02,886 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 71 [2018-02-02 20:50:02,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:02,887 INFO L225 Difference]: With dead ends: 291 [2018-02-02 20:50:02,887 INFO L226 Difference]: Without dead ends: 291 [2018-02-02 20:50:02,887 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 882 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=764, Invalid=2896, Unknown=0, NotChecked=0, Total=3660 [2018-02-02 20:50:02,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2018-02-02 20:50:02,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2018-02-02 20:50:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-02-02 20:50:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 265 transitions. [2018-02-02 20:50:02,890 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 265 transitions. Word has length 71 [2018-02-02 20:50:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:02,891 INFO L432 AbstractCegarLoop]: Abstraction has 250 states and 265 transitions. [2018-02-02 20:50:02,891 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-02 20:50:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 265 transitions. [2018-02-02 20:50:02,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-02-02 20:50:02,892 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:02,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:02,892 INFO L371 AbstractCegarLoop]: === Iteration 45 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:02,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1457041329, now seen corresponding path program 1 times [2018-02-02 20:50:02,892 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:02,903 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:03,280 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:03,280 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-02 20:50:03,280 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:03,280 INFO L182 omatonBuilderFactory]: Interpolants [21324#true, 21325#false, 21326#(= 1 (select |#valid| main_~head~0.base)), 21327#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 21328#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 21329#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 21330#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 21331#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 21332#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 21333#(and (= 1 (select |#valid| main_~head~0.base)) (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)), 21334#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 21335#(and (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))), 21336#(and (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 21337#(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))), 21338#(and (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 21339#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 21340#(and (= 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)), 21341#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= 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))), 21342#(or (not (= 0 |main_#t~mem19|)) (and (= 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))), 21343#(and (= |main_#t~mem20.base| (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))), 21344#(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_~head~0.base) main_~head~0.offset))), 21345#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 21346#(and (<= 12 (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))), 21347#(and (<= 12 (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))), 21348#(and (<= 12 (select |#length| |main_#t~mem25.base|)) (= 0 |main_#t~mem25.offset|)), 21349#(and (<= 12 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-02-02 20:50:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:03,280 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:50:03,281 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:50:03,281 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:50:03,281 INFO L87 Difference]: Start difference. First operand 250 states and 265 transitions. Second operand 26 states. [2018-02-02 20:50:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:04,397 INFO L93 Difference]: Finished difference Result 269 states and 281 transitions. [2018-02-02 20:50:04,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:50:04,398 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 71 [2018-02-02 20:50:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:04,398 INFO L225 Difference]: With dead ends: 269 [2018-02-02 20:50:04,398 INFO L226 Difference]: Without dead ends: 269 [2018-02-02 20:50:04,399 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=332, Invalid=1924, Unknown=0, NotChecked=0, Total=2256 [2018-02-02 20:50:04,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-02-02 20:50:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 252. [2018-02-02 20:50:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-02-02 20:50:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 267 transitions. [2018-02-02 20:50:04,401 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 267 transitions. Word has length 71 [2018-02-02 20:50:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:04,401 INFO L432 AbstractCegarLoop]: Abstraction has 252 states and 267 transitions. [2018-02-02 20:50:04,401 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:50:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 267 transitions. [2018-02-02 20:50:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-02-02 20:50:04,401 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:04,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:04,402 INFO L371 AbstractCegarLoop]: === Iteration 46 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:04,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1080396419, now seen corresponding path program 5 times [2018-02-02 20:50:04,402 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:04,414 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:04,890 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:04,890 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-02 20:50:04,890 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:04,891 INFO L182 omatonBuilderFactory]: Interpolants [21915#true, 21916#false, 21917#(= 1 (select |#valid| main_~head~0.base)), 21918#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 21919#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 21920#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 21921#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 21922#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 21923#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 21924#(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)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 21925#(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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base))), 21926#(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)) (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)))), 21927#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 21928#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem9.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| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|))), 21929#(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 (= 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)))), 21930#(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 (= 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 |#valid| main_~x~0.base) 1)), 21931#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.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~malloc12.base|)) (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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))), 21932#(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))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~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))))), 21933#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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 |main_#t~mem14.base|))), 21934#(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_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~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))))), 21935#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.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))))), 21936#(= 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)))), 21937#(= 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)))), 21938#(or (= 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)))) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))), 21939#(or (= 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)))) (not (= 0 |main_#t~mem19|))), 21940#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 21941#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 21942#(= 1 (select |#valid| |main_#t~mem20.base|)), 21943#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:50:04,891 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:04,891 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-02 20:50:04,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-02 20:50:04,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2018-02-02 20:50:04,891 INFO L87 Difference]: Start difference. First operand 252 states and 267 transitions. Second operand 29 states. [2018-02-02 20:50:06,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:06,453 INFO L93 Difference]: Finished difference Result 332 states and 351 transitions. [2018-02-02 20:50:06,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-02 20:50:06,453 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 74 [2018-02-02 20:50:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:06,454 INFO L225 Difference]: With dead ends: 332 [2018-02-02 20:50:06,454 INFO L226 Difference]: Without dead ends: 332 [2018-02-02 20:50:06,454 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=443, Invalid=2979, Unknown=0, NotChecked=0, Total=3422 [2018-02-02 20:50:06,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-02-02 20:50:06,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 261. [2018-02-02 20:50:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2018-02-02 20:50:06,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 278 transitions. [2018-02-02 20:50:06,456 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 278 transitions. Word has length 74 [2018-02-02 20:50:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:06,456 INFO L432 AbstractCegarLoop]: Abstraction has 261 states and 278 transitions. [2018-02-02 20:50:06,456 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-02 20:50:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 278 transitions. [2018-02-02 20:50:06,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-02-02 20:50:06,457 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:06,457 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:06,457 INFO L371 AbstractCegarLoop]: === Iteration 47 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:06,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1080396418, now seen corresponding path program 4 times [2018-02-02 20:50:06,457 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:06,473 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:07,208 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:07,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-02 20:50:07,208 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:07,208 INFO L182 omatonBuilderFactory]: Interpolants [22597#true, 22598#false, 22599#(= 1 (select |#valid| main_~head~0.base)), 22600#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 22601#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 22602#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 22603#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 22604#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 22605#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 22606#(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)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 22607#(and (= 0 |main_#t~malloc5.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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= 12 (select |#length| |main_#t~malloc5.base|))), 22608#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (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| main_~x~0.base)) (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 22609#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 22610#(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))) (= 12 (select |#length| |main_#t~mem9.base|)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem9.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| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|))), 22611#(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))) (= 12 (select |#length| main_~x~0.base)) (= 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 (= 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)))), 22612#(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))) (= 12 (select |#length| main_~x~0.base)) (= 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 (= 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 |#valid| main_~x~0.base) 1)), 22613#(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~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.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~malloc12.base|)) (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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))), 22614#(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))) (= 12 (select |#length| main_~x~0.base)) (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_~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)))), 22615#(and (= 12 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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 |main_#t~mem14.base|))), 22616#(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))) (= 12 (select |#length| main_~x~0.base)) (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)))), 22617#(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))) (= 12 (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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 22618#(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))) (= 12 (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))))), 22619#(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))) (= 12 (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))))), 22620#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (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))) (= 12 (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)))))), 22621#(or (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))) (= 12 (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 (= 0 |main_#t~mem19|))), 22622#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 22623#(and (= 12 (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))), 22624#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 22625#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 20:50:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:07,209 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-02 20:50:07,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-02 20:50:07,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2018-02-02 20:50:07,209 INFO L87 Difference]: Start difference. First operand 261 states and 278 transitions. Second operand 29 states. [2018-02-02 20:50:09,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:09,001 INFO L93 Difference]: Finished difference Result 371 states and 390 transitions. [2018-02-02 20:50:09,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-02 20:50:09,001 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 74 [2018-02-02 20:50:09,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:09,002 INFO L225 Difference]: With dead ends: 371 [2018-02-02 20:50:09,002 INFO L226 Difference]: Without dead ends: 371 [2018-02-02 20:50:09,002 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=299, Invalid=2353, Unknown=0, NotChecked=0, Total=2652 [2018-02-02 20:50:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-02-02 20:50:09,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 261. [2018-02-02 20:50:09,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2018-02-02 20:50:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 277 transitions. [2018-02-02 20:50:09,004 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 277 transitions. Word has length 74 [2018-02-02 20:50:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:09,005 INFO L432 AbstractCegarLoop]: Abstraction has 261 states and 277 transitions. [2018-02-02 20:50:09,005 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-02 20:50:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 277 transitions. [2018-02-02 20:50:09,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-02-02 20:50:09,005 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:09,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:09,005 INFO L371 AbstractCegarLoop]: === Iteration 48 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:09,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1337301434, now seen corresponding path program 3 times [2018-02-02 20:50:09,006 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:09,015 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:09,534 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:09,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-02 20:50:09,534 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:09,534 INFO L182 omatonBuilderFactory]: Interpolants [23304#true, 23305#false, 23306#(= 1 (select |#valid| main_~head~0.base)), 23307#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 23308#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 23309#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 23310#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 23311#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 23312#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 23313#(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)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 23314#(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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base))), 23315#(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)) (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)))), 23316#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 23317#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem9.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| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|))), 23318#(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 (= 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)))), 23319#(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 (= 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 |#valid| main_~x~0.base) 1)), 23320#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.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~malloc12.base|)) (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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))), 23321#(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))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~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))))), 23322#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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 |main_#t~mem14.base|))), 23323#(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_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~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))))), 23324#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.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))))), 23325#(= 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)))), 23326#(= 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)))), 23327#(or (= 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)))) (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))), 23328#(or (= 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)))) (not (= 0 |main_#t~mem19|))), 23329#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 23330#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 23331#(= 1 (select |#valid| |main_#t~mem22.base|)), 23332#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:50:09,535 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:09,535 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-02 20:50:09,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-02 20:50:09,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2018-02-02 20:50:09,535 INFO L87 Difference]: Start difference. First operand 261 states and 277 transitions. Second operand 29 states. [2018-02-02 20:50:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:11,066 INFO L93 Difference]: Finished difference Result 345 states and 365 transitions. [2018-02-02 20:50:11,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-02 20:50:11,067 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 74 [2018-02-02 20:50:11,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:11,067 INFO L225 Difference]: With dead ends: 345 [2018-02-02 20:50:11,068 INFO L226 Difference]: Without dead ends: 345 [2018-02-02 20:50:11,068 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=443, Invalid=2979, Unknown=0, NotChecked=0, Total=3422 [2018-02-02 20:50:11,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2018-02-02 20:50:11,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 269. [2018-02-02 20:50:11,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-02-02 20:50:11,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 286 transitions. [2018-02-02 20:50:11,070 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 286 transitions. Word has length 74 [2018-02-02 20:50:11,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:11,070 INFO L432 AbstractCegarLoop]: Abstraction has 269 states and 286 transitions. [2018-02-02 20:50:11,070 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-02 20:50:11,070 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 286 transitions. [2018-02-02 20:50:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-02-02 20:50:11,071 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:11,071 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:11,071 INFO L371 AbstractCegarLoop]: === Iteration 49 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:11,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1337301435, now seen corresponding path program 2 times [2018-02-02 20:50:11,071 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:11,082 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:11,736 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:11,736 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-02 20:50:11,736 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:11,737 INFO L182 omatonBuilderFactory]: Interpolants [24007#true, 24008#false, 24009#(= 1 (select |#valid| main_~head~0.base)), 24010#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 24011#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 24012#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 24013#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 24014#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 24015#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 24016#(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)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 24017#(and (= 0 |main_#t~malloc5.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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= 12 (select |#length| |main_#t~malloc5.base|))), 24018#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (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| main_~x~0.base)) (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 24019#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 24020#(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))) (= 12 (select |#length| |main_#t~mem9.base|)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem9.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| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|))), 24021#(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))) (= 12 (select |#length| main_~x~0.base)) (= 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 (= 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)))), 24022#(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))) (= 12 (select |#length| main_~x~0.base)) (= 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 (= 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 |#valid| main_~x~0.base) 1)), 24023#(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~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc12.base|)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.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~malloc12.base|)) (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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))), 24024#(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))) (= 12 (select |#length| main_~x~0.base)) (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_~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)))), 24025#(and (= 12 (select |#length| main_~x~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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 |main_#t~mem14.base|))), 24026#(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))) (= 12 (select |#length| main_~x~0.base)) (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)))), 24027#(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))) (= 12 (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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 24028#(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))) (= 12 (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))))), 24029#(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))) (= 12 (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))))), 24030#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (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))) (= 12 (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)))))), 24031#(or (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))) (= 12 (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 (= 0 |main_#t~mem19|))), 24032#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 24033#(and (= 12 (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))), 24034#(and (= 12 (select |#length| |main_#t~mem22.base|)) (= 0 |main_#t~mem22.offset|)), 24035#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 20:50:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:11,737 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-02 20:50:11,737 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-02 20:50:11,737 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2018-02-02 20:50:11,738 INFO L87 Difference]: Start difference. First operand 269 states and 286 transitions. Second operand 29 states. [2018-02-02 20:50:13,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:13,473 INFO L93 Difference]: Finished difference Result 374 states and 393 transitions. [2018-02-02 20:50:13,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-02 20:50:13,474 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 74 [2018-02-02 20:50:13,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:13,475 INFO L225 Difference]: With dead ends: 374 [2018-02-02 20:50:13,475 INFO L226 Difference]: Without dead ends: 374 [2018-02-02 20:50:13,475 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=299, Invalid=2353, Unknown=0, NotChecked=0, Total=2652 [2018-02-02 20:50:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-02-02 20:50:13,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 269. [2018-02-02 20:50:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-02-02 20:50:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 285 transitions. [2018-02-02 20:50:13,477 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 285 transitions. Word has length 74 [2018-02-02 20:50:13,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:13,477 INFO L432 AbstractCegarLoop]: Abstraction has 269 states and 285 transitions. [2018-02-02 20:50:13,477 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-02 20:50:13,477 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 285 transitions. [2018-02-02 20:50:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-02-02 20:50:13,478 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:13,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:13,478 INFO L371 AbstractCegarLoop]: === Iteration 50 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:13,478 INFO L82 PathProgramCache]: Analyzing trace with hash 697950160, now seen corresponding path program 1 times [2018-02-02 20:50:13,478 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:13,485 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:13,748 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:13,748 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-02 20:50:13,748 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:13,749 INFO L182 omatonBuilderFactory]: Interpolants [24736#(and (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))), 24737#(and (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 24738#(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))), 24739#(and (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 24740#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 24741#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 24742#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base))), 24743#(or (not (= 0 |main_#t~mem19|)) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base))), 24744#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 24745#(= 0 |main_#t~mem25.offset|), 24746#(= 0 main_~x~0.offset), 24747#(= main_~head~0.offset 0), 24725#true, 24726#false, 24727#(= 1 (select |#valid| main_~head~0.base)), 24728#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 24729#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 24730#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 24731#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 24732#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 24733#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 24734#(and (= 1 (select |#valid| main_~head~0.base)) (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)), 24735#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))] [2018-02-02 20:50:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:13,749 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-02 20:50:13,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-02 20:50:13,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2018-02-02 20:50:13,750 INFO L87 Difference]: Start difference. First operand 269 states and 285 transitions. Second operand 23 states. [2018-02-02 20:50:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:14,463 INFO L93 Difference]: Finished difference Result 291 states and 302 transitions. [2018-02-02 20:50:14,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:50:14,463 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 75 [2018-02-02 20:50:14,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:14,464 INFO L225 Difference]: With dead ends: 291 [2018-02-02 20:50:14,464 INFO L226 Difference]: Without dead ends: 291 [2018-02-02 20:50:14,464 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=276, Invalid=1284, Unknown=0, NotChecked=0, Total=1560 [2018-02-02 20:50:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2018-02-02 20:50:14,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 265. [2018-02-02 20:50:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-02-02 20:50:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 280 transitions. [2018-02-02 20:50:14,466 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 280 transitions. Word has length 75 [2018-02-02 20:50:14,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:14,466 INFO L432 AbstractCegarLoop]: Abstraction has 265 states and 280 transitions. [2018-02-02 20:50:14,466 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-02 20:50:14,466 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 280 transitions. [2018-02-02 20:50:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-02 20:50:14,467 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:14,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:14,467 INFO L371 AbstractCegarLoop]: === Iteration 51 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:14,467 INFO L82 PathProgramCache]: Analyzing trace with hash 715210706, now seen corresponding path program 2 times [2018-02-02 20:50:14,468 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:14,480 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:15,387 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:15,388 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-02-02 20:50:15,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:15,388 INFO L182 omatonBuilderFactory]: Interpolants [25344#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= 0 (select |#valid| 0)) (= main_~x~0.base main_~head~0.base)), 25345#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= 0 (select |#valid| 0)) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 25346#(and (= 1 (select |#valid| main_~x~0.base)) (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 |#valid| 0)) (= main_~x~0.base main_~head~0.base)), 25347#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= 0 (select |#valid| 0)) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 25348#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 0 (select |#valid| 0))), 25349#(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_~head~0.base)) (= 0 (select |#valid| 0)) (not (= main_~x~0.base main_~head~0.base))), 25350#(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_~head~0.base)) (= 0 (select |#valid| 0)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 25351#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 (select |#valid| 0)) (not (= 0 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_#t~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 25352#(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))) (= 0 (select |#valid| 0)) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 25353#(and (= 0 (select |#valid| 0)) (not (= main_~head~0.base |main_#t~mem14.base|)) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base |main_#t~mem14.base|)) (= |main_#t~mem14.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))), 25354#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select |#valid| 0)) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 25355#(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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select |#valid| 0)) (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= 0 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)) (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))))), 25356#(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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 0 (select |#valid| 0)) (not (= 0 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)) (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))))), 25357#(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_~head~0.offset)))) (= main_~x~0.offset main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.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_~head~0.offset)))) (= 0 (select |#valid| 0)) (not (= main_~head~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_~head~0.offset)))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 25358#(and (= |main_#t~mem18| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 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_~head~0.offset)))) (= main_~x~0.offset main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.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_~head~0.offset)))) (= 0 (select |#valid| 0)) (not (= main_~head~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_~head~0.offset)))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 25359#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (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_~head~0.offset)))) (= main_~x~0.offset main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.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_~head~0.offset)))) (= 0 (select |#valid| 0)) (not (= main_~head~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_~head~0.offset)))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base))), 25360#(or (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_~head~0.offset)))) (= main_~x~0.offset main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.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_~head~0.offset)))) (= 0 (select |#valid| 0)) (not (= main_~head~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_~head~0.offset)))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)) (not (= 0 |main_#t~mem19|))), 25361#(and (not (= 1 (select |#valid| 0))) (= 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_~head~0.offset)))) (= main_~x~0.offset main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.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_~head~0.offset)))) (not (= main_~head~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_~head~0.offset)))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 25362#(and (not (= 1 (select |#valid| 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (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~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 25363#(and (not (= 1 (select |#valid| 0))) (not (= main_~head~0.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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= 0 main_~head~0.base))), 25364#(and (not (= 1 (select |#valid| 0))) (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 (= 0 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)) (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))))), 25365#(and (not (= 1 (select |#valid| 0))) (= 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)))) (not (= 0 main_~x~0.base)) (not (= 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)))) (not (= (select (select |#memory_$Pointer$.base| 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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 25366#(and (not (= 1 (select |#valid| 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)) (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) (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 (= 0 main_~head~0.base))), 25367#(and (not (= 1 (select |#valid| 0))) (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))) (not (= |main_#t~mem25.base| (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))) (not (= 0 main_~head~0.base))), 25368#(and (or (not (= 1 (select |#valid| 0))) (not (= 0 main_~x~0.base))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~head~0.base))), 25369#(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 (= 1 (select |#valid| main_~x~0.base))) (not (= 0 main_~x~0.base)))), 25370#(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))), 25371#(and (not (= 0 main_~x~0.base)) (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base)), 25372#(and (= 1 (select (store |#valid| main_~head~0.base 0) |main_#t~mem25.base|)) (not (= 0 main_~head~0.base))), 25373#(and (= 1 (select (store |#valid| main_~head~0.base 0) main_~x~0.base)) (not (= 0 main_~head~0.base))), 25374#(= 1 (select |#valid| main_~x~0.base)), 25338#true, 25339#false, 25340#(= 0 (select |#valid| 0)), 25341#(and (not (= 0 |main_#t~malloc0.base|)) (= 0 (select |#valid| 0))), 25342#(and (= 0 (select |#valid| 0)) (not (= 0 main_~head~0.base))), 25343#(and (= 1 (select |#valid| main_~head~0.base)) (= 0 (select |#valid| 0)))] [2018-02-02 20:50:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:15,388 INFO L409 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-02-02 20:50:15,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-02-02 20:50:15,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1176, Unknown=0, NotChecked=0, Total=1332 [2018-02-02 20:50:15,389 INFO L87 Difference]: Start difference. First operand 265 states and 280 transitions. Second operand 37 states. [2018-02-02 20:50:17,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:17,245 INFO L93 Difference]: Finished difference Result 294 states and 309 transitions. [2018-02-02 20:50:17,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-02-02 20:50:17,245 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 77 [2018-02-02 20:50:17,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:17,246 INFO L225 Difference]: With dead ends: 294 [2018-02-02 20:50:17,246 INFO L226 Difference]: Without dead ends: 294 [2018-02-02 20:50:17,247 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1212 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=809, Invalid=4161, Unknown=0, NotChecked=0, Total=4970 [2018-02-02 20:50:17,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-02-02 20:50:17,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 273. [2018-02-02 20:50:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2018-02-02 20:50:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 290 transitions. [2018-02-02 20:50:17,249 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 290 transitions. Word has length 77 [2018-02-02 20:50:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:17,249 INFO L432 AbstractCegarLoop]: Abstraction has 273 states and 290 transitions. [2018-02-02 20:50:17,249 INFO L433 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-02-02 20:50:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 290 transitions. [2018-02-02 20:50:17,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-02 20:50:17,249 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:17,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:17,250 INFO L371 AbstractCegarLoop]: === Iteration 52 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:17,250 INFO L82 PathProgramCache]: Analyzing trace with hash 715210707, now seen corresponding path program 2 times [2018-02-02 20:50:17,250 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:17,260 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:50:17,434 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:17,434 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-02-02 20:50:17,434 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:17,434 INFO L182 omatonBuilderFactory]: Interpolants [26016#(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)))), 26017#(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 (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 12) (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))))), 26018#(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)) 12) (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)))) (<= 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))), 26019#(and (<= (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem25.base|) |main_#t~mem25.offset|) 12) (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))) (<= 0 (+ (select (select |#memory_$Pointer$.offset| |main_#t~mem25.base|) |main_#t~mem25.offset|) 8))), 26020#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 12) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 26021#(and (<= (+ |main_#t~mem25.offset| 12) (select |#length| |main_#t~mem25.base|)) (<= 0 (+ |main_#t~mem25.offset| 8))), 26022#(and (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base)) (<= 0 (+ main_~x~0.offset 8))), 26010#true, 26011#false, 26012#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 26013#(and (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 26014#(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))), 26015#(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~mem22.base|) (= |main_#t~mem22.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))))] [2018-02-02 20:50:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:50:17,435 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-02 20:50:17,435 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-02 20:50:17,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-02-02 20:50:17,435 INFO L87 Difference]: Start difference. First operand 273 states and 290 transitions. Second operand 13 states. [2018-02-02 20:50:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:17,898 INFO L93 Difference]: Finished difference Result 357 states and 372 transitions. [2018-02-02 20:50:17,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-02 20:50:17,898 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2018-02-02 20:50:17,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:17,899 INFO L225 Difference]: With dead ends: 357 [2018-02-02 20:50:17,899 INFO L226 Difference]: Without dead ends: 357 [2018-02-02 20:50:17,899 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2018-02-02 20:50:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-02-02 20:50:17,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 299. [2018-02-02 20:50:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-02-02 20:50:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 325 transitions. [2018-02-02 20:50:17,901 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 325 transitions. Word has length 77 [2018-02-02 20:50:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:17,901 INFO L432 AbstractCegarLoop]: Abstraction has 299 states and 325 transitions. [2018-02-02 20:50:17,901 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-02 20:50:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 325 transitions. [2018-02-02 20:50:17,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-02 20:50:17,902 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:17,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:17,902 INFO L371 AbstractCegarLoop]: === Iteration 53 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:17,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1401333361, now seen corresponding path program 2 times [2018-02-02 20:50:17,902 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:17,910 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-02-02 20:50:18,162 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:18,162 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-02 20:50:18,162 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:18,163 INFO L182 omatonBuilderFactory]: Interpolants [26720#(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))), 26721#(and (not (= |main_#t~mem16.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 26722#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 26723#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 26724#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 26725#(= 0 |main_#t~mem27.offset|), 26703#true, 26704#false, 26705#(= (select |#valid| main_~head~0.base) 1), 26706#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 26707#(and (= 0 |main_#t~malloc5.offset|) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 26708#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 26709#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 26710#(and (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 26711#(and (= (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))), 26712#(and (= (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)), 26713#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= (select |#valid| main_~head~0.base) 1) (= 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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset))), 26714#(and (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_~head~0.base) main_~head~0.offset))), 26715#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 26716#(and (= (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_~head~0.base) main_~head~0.offset))), 26717#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 26718#(and (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))), 26719#(and (= 0 (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|)))] [2018-02-02 20:50:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-02-02 20:50:18,163 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-02 20:50:18,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-02 20:50:18,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2018-02-02 20:50:18,163 INFO L87 Difference]: Start difference. First operand 299 states and 325 transitions. Second operand 23 states. [2018-02-02 20:50:18,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:18,780 INFO L93 Difference]: Finished difference Result 333 states and 357 transitions. [2018-02-02 20:50:18,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:50:18,780 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 77 [2018-02-02 20:50:18,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:18,781 INFO L225 Difference]: With dead ends: 333 [2018-02-02 20:50:18,781 INFO L226 Difference]: Without dead ends: 333 [2018-02-02 20:50:18,782 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=322, Invalid=1400, Unknown=0, NotChecked=0, Total=1722 [2018-02-02 20:50:18,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-02-02 20:50:18,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 305. [2018-02-02 20:50:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2018-02-02 20:50:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 331 transitions. [2018-02-02 20:50:18,784 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 331 transitions. Word has length 77 [2018-02-02 20:50:18,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:18,784 INFO L432 AbstractCegarLoop]: Abstraction has 305 states and 331 transitions. [2018-02-02 20:50:18,784 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-02 20:50:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 331 transitions. [2018-02-02 20:50:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-02-02 20:50:18,784 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:18,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:18,784 INFO L371 AbstractCegarLoop]: === Iteration 54 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:18,785 INFO L82 PathProgramCache]: Analyzing trace with hash -725016223, now seen corresponding path program 1 times [2018-02-02 20:50:18,785 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:18,791 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:19,122 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:19,122 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-02 20:50:19,122 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:19,122 INFO L182 omatonBuilderFactory]: Interpolants [27424#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 27425#(= 0 |main_#t~mem27.offset|), 27402#true, 27403#false, 27404#(= 1 (select |#valid| main_~head~0.base)), 27405#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 27406#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 27407#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 27408#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 27409#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 27410#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 27411#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 27412#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 27413#(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)))), 27414#(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) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 27415#(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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 27416#(= 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))), 27417#(and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 27418#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base))), 27419#(or (not (= 0 |main_#t~mem19|)) (and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base))), 27420#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 27421#(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) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 27422#(= 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))), 27423#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem25.base|) |main_#t~mem25.offset|))] [2018-02-02 20:50:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:19,122 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-02 20:50:19,123 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-02 20:50:19,123 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2018-02-02 20:50:19,123 INFO L87 Difference]: Start difference. First operand 305 states and 331 transitions. Second operand 24 states. [2018-02-02 20:50:19,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:19,924 INFO L93 Difference]: Finished difference Result 313 states and 335 transitions. [2018-02-02 20:50:19,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-02 20:50:19,925 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 78 [2018-02-02 20:50:19,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:19,925 INFO L225 Difference]: With dead ends: 313 [2018-02-02 20:50:19,925 INFO L226 Difference]: Without dead ends: 313 [2018-02-02 20:50:19,926 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=251, Invalid=1555, Unknown=0, NotChecked=0, Total=1806 [2018-02-02 20:50:19,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-02-02 20:50:19,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 299. [2018-02-02 20:50:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-02-02 20:50:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 323 transitions. [2018-02-02 20:50:19,927 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 323 transitions. Word has length 78 [2018-02-02 20:50:19,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:19,928 INFO L432 AbstractCegarLoop]: Abstraction has 299 states and 323 transitions. [2018-02-02 20:50:19,928 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-02 20:50:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 323 transitions. [2018-02-02 20:50:19,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-02-02 20:50:19,928 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:19,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:19,929 INFO L371 AbstractCegarLoop]: === Iteration 55 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:19,929 INFO L82 PathProgramCache]: Analyzing trace with hash -725016222, now seen corresponding path program 1 times [2018-02-02 20:50:19,929 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:19,940 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:20,453 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:20,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-02 20:50:20,453 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:20,454 INFO L182 omatonBuilderFactory]: Interpolants [28096#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 main_~head~0.base))), 28097#(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 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 28098#(and (not (= main_~head~0.base |main_#t~mem22.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~mem22.base|) (not (= 0 main_~head~0.base))), 28099#(and (not (= main_~head~0.base main_~x~0.base)) (not (= 0 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)))), 28100#(and (not (= 0 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)) (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))))), 28101#(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)))) (not (= 0 main_~x~0.base)) (not (= 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))))), 28102#(and (= 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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (not (= 0 main_~head~0.base))), 28103#(and (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))) (not (= 0 main_~head~0.base))), 28104#(and (= 1 (select (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~head~0.base))), 28105#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 28106#(= (select |#valid| |main_#t~mem27.base|) 1), 28076#true, 28077#false, 28078#(not (= 0 |main_#t~malloc0.base|)), 28079#(not (= 0 main_~head~0.base)), 28080#(and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base))), 28081#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 28082#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 28083#(and (= 1 (select |#valid| main_~x~0.base)) (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) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 28084#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 28085#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.offset|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (not (= 0 main_~head~0.base))), 28086#(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_~head~0.base)) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 28087#(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_~head~0.base)) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 28088#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (not (= 0 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_#t~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 28089#(and (not (= main_~head~0.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)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 28090#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))))), 28091#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= 0 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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 28092#(and (not (= 0 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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 28093#(and (not (= main_~head~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 main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 28094#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (not (= main_~head~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 main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base))), 28095#(or (and (not (= main_~head~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 main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)) (not (= 0 |main_#t~mem19|)))] [2018-02-02 20:50:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:20,454 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-02 20:50:20,454 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-02 20:50:20,454 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2018-02-02 20:50:20,454 INFO L87 Difference]: Start difference. First operand 299 states and 323 transitions. Second operand 31 states. [2018-02-02 20:50:21,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:21,811 INFO L93 Difference]: Finished difference Result 333 states and 355 transitions. [2018-02-02 20:50:21,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-02 20:50:21,811 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 78 [2018-02-02 20:50:21,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:21,812 INFO L225 Difference]: With dead ends: 333 [2018-02-02 20:50:21,812 INFO L226 Difference]: Without dead ends: 333 [2018-02-02 20:50:21,813 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=492, Invalid=3048, Unknown=0, NotChecked=0, Total=3540 [2018-02-02 20:50:21,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-02-02 20:50:21,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 299. [2018-02-02 20:50:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-02-02 20:50:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 323 transitions. [2018-02-02 20:50:21,815 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 323 transitions. Word has length 78 [2018-02-02 20:50:21,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:21,815 INFO L432 AbstractCegarLoop]: Abstraction has 299 states and 323 transitions. [2018-02-02 20:50:21,815 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-02 20:50:21,815 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 323 transitions. [2018-02-02 20:50:21,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-02 20:50:21,816 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:21,816 INFO L351 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:21,816 INFO L371 AbstractCegarLoop]: === Iteration 56 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:21,816 INFO L82 PathProgramCache]: Analyzing trace with hash 122726516, now seen corresponding path program 1 times [2018-02-02 20:50:21,817 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:21,824 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:22,146 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:22,146 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-02 20:50:22,147 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:22,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:22,147 INFO L182 omatonBuilderFactory]: Interpolants [28800#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 28801#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 28802#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 28803#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 28804#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 28805#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 28806#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 28807#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 28808#(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)))), 28809#(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) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 28810#(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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 28811#(= 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))), 28812#(and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 28813#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base))), 28814#(or (not (= 0 |main_#t~mem19|)) (and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base))), 28815#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 28816#(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) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 28817#(= 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))), 28818#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem25.base|) |main_#t~mem25.offset|)), 28819#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 28820#(= 0 |main_#t~mem25.offset|), 28821#(= main_~x~0.offset 0), 28822#(and (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 28797#true, 28798#false, 28799#(= 1 (select |#valid| main_~head~0.base))] [2018-02-02 20:50:22,147 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:22,147 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:50:22,147 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:50:22,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:50:22,147 INFO L87 Difference]: Start difference. First operand 299 states and 323 transitions. Second operand 26 states. [2018-02-02 20:50:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:23,076 INFO L93 Difference]: Finished difference Result 329 states and 351 transitions. [2018-02-02 20:50:23,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:50:23,077 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 79 [2018-02-02 20:50:23,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:23,077 INFO L225 Difference]: With dead ends: 329 [2018-02-02 20:50:23,077 INFO L226 Difference]: Without dead ends: 329 [2018-02-02 20:50:23,078 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=260, Invalid=1810, Unknown=0, NotChecked=0, Total=2070 [2018-02-02 20:50:23,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2018-02-02 20:50:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 307. [2018-02-02 20:50:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-02-02 20:50:23,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 334 transitions. [2018-02-02 20:50:23,080 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 334 transitions. Word has length 79 [2018-02-02 20:50:23,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:23,080 INFO L432 AbstractCegarLoop]: Abstraction has 307 states and 334 transitions. [2018-02-02 20:50:23,080 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:50:23,080 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 334 transitions. [2018-02-02 20:50:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-02 20:50:23,080 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:23,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:23,080 INFO L371 AbstractCegarLoop]: === Iteration 57 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:23,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1938364429, now seen corresponding path program 2 times [2018-02-02 20:50:23,081 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:23,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-02-02 20:50:23,466 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:23,466 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-02 20:50:23,466 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:23,467 INFO L182 omatonBuilderFactory]: Interpolants [29504#(and (= 1 (select |#valid| main_~x~0.base)) (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) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 29505#(and (not (= 0 (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 29506#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) 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)), 29507#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 29508#(and (= 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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 29509#(and (= 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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 29510#(and (not (= 0 (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~malloc5.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc5.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_#t~malloc5.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= 1 (select |#valid| main_~head~0.base))), 29511#(and (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_~head~0.base) main_~head~0.offset))) (not (= 0 (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)))), 29512#(and (not (= 0 (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 29513#(and (= 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 (= 0 (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)))), 29514#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= 0 (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~malloc12.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc12.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_#t~malloc12.base|)) main_~head~0.base) main_~head~0.offset)))), 29515#(and (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 (= 0 (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)))), 29516#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (not (= 0 (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 29517#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (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)))), 29518#(and (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 29519#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 29520#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 29521#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 29522#(and (= 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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 29523#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 29524#(= 1 (select (store |#valid| |main_#t~mem27.base| 0) main_~x~0.base)), 29525#(= 1 (select |#valid| main_~x~0.base)), 29499#true, 29500#false, 29501#(= (select |#valid| main_~head~0.base) 1), 29502#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 29503#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 |main_#t~malloc5.base|)) (= main_~x~0.base main_~head~0.base))] [2018-02-02 20:50:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-02-02 20:50:23,467 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-02-02 20:50:23,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-02-02 20:50:23,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-02-02 20:50:23,468 INFO L87 Difference]: Start difference. First operand 307 states and 334 transitions. Second operand 27 states. [2018-02-02 20:50:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:24,284 INFO L93 Difference]: Finished difference Result 342 states and 368 transitions. [2018-02-02 20:50:24,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:50:24,285 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2018-02-02 20:50:24,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:24,285 INFO L225 Difference]: With dead ends: 342 [2018-02-02 20:50:24,285 INFO L226 Difference]: Without dead ends: 342 [2018-02-02 20:50:24,286 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=409, Invalid=1571, Unknown=0, NotChecked=0, Total=1980 [2018-02-02 20:50:24,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-02-02 20:50:24,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 315. [2018-02-02 20:50:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-02-02 20:50:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 342 transitions. [2018-02-02 20:50:24,288 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 342 transitions. Word has length 79 [2018-02-02 20:50:24,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:24,288 INFO L432 AbstractCegarLoop]: Abstraction has 315 states and 342 transitions. [2018-02-02 20:50:24,288 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-02-02 20:50:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 342 transitions. [2018-02-02 20:50:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-02 20:50:24,288 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:24,288 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:24,288 INFO L371 AbstractCegarLoop]: === Iteration 58 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:24,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1551059339, now seen corresponding path program 6 times [2018-02-02 20:50:24,289 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:24,299 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-02 20:50:24,836 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:24,836 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-02-02 20:50:24,836 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:24,836 INFO L182 omatonBuilderFactory]: Interpolants [30219#true, 30220#false, 30221#(= 1 (select |#valid| main_~head~0.base)), 30222#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 30223#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 30224#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 30225#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 30226#(and (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 30227#(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)) (not (= main_~x~0.base main_~head~0.base))), 30228#(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)) (not (= main_~x~0.base main_~head~0.base))), 30229#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base))), 30230#(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 (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)))), 30231#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 30232#(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)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 30233#(and (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 30234#(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 main_~head~0.base))), 30235#(and (= 1 (select |#valid| main_~x~0.base)) (= 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 main_~head~0.base))), 30236#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= 1 (select |#valid| main_~head~0.base)) (or (= |main_#t~malloc5.base| (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~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset))))), 30237#(and (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))) (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))))), 30238#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (or (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset) (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~mem7.base|))), 30239#(and (= 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))) (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))))), 30240#(and (or (= |main_#t~mem9.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)))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 30241#(and (or (= 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_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 30242#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.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_#t~malloc12.base|)) main_~head~0.base) main_~head~0.offset)))), 30243#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (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)))), 30244#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 30245#(and (= 1 (select |#valid| (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)))), 30246#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 30247#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 30248#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 30249#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 30250#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 |main_#t~mem19|))), 30251#(= 1 (select |#valid| |main_#t~mem20.base|)), 30252#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:50:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-02 20:50:24,836 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-02 20:50:24,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-02 20:50:24,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=984, Unknown=0, NotChecked=0, Total=1122 [2018-02-02 20:50:24,837 INFO L87 Difference]: Start difference. First operand 315 states and 342 transitions. Second operand 34 states. [2018-02-02 20:50:26,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:26,145 INFO L93 Difference]: Finished difference Result 316 states and 341 transitions. [2018-02-02 20:50:26,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-02-02 20:50:26,145 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 79 [2018-02-02 20:50:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:26,146 INFO L225 Difference]: With dead ends: 316 [2018-02-02 20:50:26,146 INFO L226 Difference]: Without dead ends: 316 [2018-02-02 20:50:26,147 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=752, Invalid=3804, Unknown=0, NotChecked=0, Total=4556 [2018-02-02 20:50:26,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-02-02 20:50:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 315. [2018-02-02 20:50:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-02-02 20:50:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 341 transitions. [2018-02-02 20:50:26,149 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 341 transitions. Word has length 79 [2018-02-02 20:50:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:26,149 INFO L432 AbstractCegarLoop]: Abstraction has 315 states and 341 transitions. [2018-02-02 20:50:26,149 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-02 20:50:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 341 transitions. [2018-02-02 20:50:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-02 20:50:26,149 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:26,150 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, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:26,150 INFO L371 AbstractCegarLoop]: === Iteration 59 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:26,150 INFO L82 PathProgramCache]: Analyzing trace with hash 866638514, now seen corresponding path program 3 times [2018-02-02 20:50:26,150 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:26,161 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:26,703 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-02 20:50:26,703 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:26,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-02 20:50:26,703 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:26,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:26,703 INFO L182 omatonBuilderFactory]: Interpolants [30976#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (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)))), 30977#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)))), 30978#(and (= 1 (select |#valid| (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)))), 30979#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 30980#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 30981#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 30982#(= 1 (select |#valid| |main_#t~mem22.base|)), 30983#(= 1 (select |#valid| main_~x~0.base)), 30952#true, 30953#false, 30954#(= (select |#valid| main_~head~0.base) 1), 30955#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 30956#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 30957#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 30958#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 30959#(and (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1)), 30960#(and (= 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))), 30961#(and (= 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)), 30962#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 30963#(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 (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)))), 30964#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 30965#(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)) (= (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)))), 30966#(and (not (= main_~head~0.base |main_#t~mem9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 30967#(and (= 1 (select |#valid| (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))), 30968#(and (= 1 (select |#valid| (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)), 30969#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= (select |#valid| main_~head~0.base) 1) (or (= |main_#t~malloc5.base| (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~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset))))), 30970#(and (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))) (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))))), 30971#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (or (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset) (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base |main_#t~mem7.base|))), 30972#(and (= (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))) (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))))), 30973#(and (or (= |main_#t~mem9.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)))) (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1)), 30974#(and (or (= 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_~head~0.base) main_~head~0.offset)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 30975#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.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_#t~malloc12.base|)) main_~head~0.base) main_~head~0.offset))))] [2018-02-02 20:50:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-02 20:50:26,704 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-02 20:50:26,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-02 20:50:26,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2018-02-02 20:50:26,704 INFO L87 Difference]: Start difference. First operand 315 states and 341 transitions. Second operand 32 states. [2018-02-02 20:50:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:27,914 INFO L93 Difference]: Finished difference Result 316 states and 340 transitions. [2018-02-02 20:50:27,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-02 20:50:27,915 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 79 [2018-02-02 20:50:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:27,915 INFO L225 Difference]: With dead ends: 316 [2018-02-02 20:50:27,915 INFO L226 Difference]: Without dead ends: 316 [2018-02-02 20:50:27,916 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=684, Invalid=3222, Unknown=0, NotChecked=0, Total=3906 [2018-02-02 20:50:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-02-02 20:50:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 307. [2018-02-02 20:50:27,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-02-02 20:50:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 332 transitions. [2018-02-02 20:50:27,918 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 332 transitions. Word has length 79 [2018-02-02 20:50:27,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:27,918 INFO L432 AbstractCegarLoop]: Abstraction has 307 states and 332 transitions. [2018-02-02 20:50:27,918 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-02 20:50:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 332 transitions. [2018-02-02 20:50:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-02-02 20:50:27,918 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:27,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:27,918 INFO L371 AbstractCegarLoop]: === Iteration 60 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:27,919 INFO L82 PathProgramCache]: Analyzing trace with hash -955881757, now seen corresponding path program 1 times [2018-02-02 20:50:27,919 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:27,927 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:28,262 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:28,263 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-02 20:50:28,263 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:28,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:28,263 INFO L182 omatonBuilderFactory]: Interpolants [31680#(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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (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)))), 31681#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|)) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))))), 31682#(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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 31683#(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)))), 31684#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (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_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))))), 31685#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (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_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))))), 31686#(or (not (= 0 |main_#t~mem19|)) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (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_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))))), 31687#(and (= |main_#t~mem20.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_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 31688#(not (= (select (select |#memory_$Pointer$.base| 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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 31689#(not (= |main_#t~mem25.base| (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))), 31690#(not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 31691#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 31692#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base |main_#t~mem27.base|))), 31693#(= 1 (select |#valid| main_~x~0.base)), 31669#true, 31670#false, 31671#(= 1 (select |#valid| main_~head~0.base)), 31672#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 31673#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 31674#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 31675#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 31676#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.offset|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 31677#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 31678#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 31679#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))] [2018-02-02 20:50:28,263 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:28,263 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-02 20:50:28,263 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-02 20:50:28,263 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2018-02-02 20:50:28,263 INFO L87 Difference]: Start difference. First operand 307 states and 332 transitions. Second operand 25 states. [2018-02-02 20:50:29,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:29,110 INFO L93 Difference]: Finished difference Result 313 states and 336 transitions. [2018-02-02 20:50:29,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-02 20:50:29,110 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 80 [2018-02-02 20:50:29,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:29,111 INFO L225 Difference]: With dead ends: 313 [2018-02-02 20:50:29,111 INFO L226 Difference]: Without dead ends: 313 [2018-02-02 20:50:29,111 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=342, Invalid=1820, Unknown=0, NotChecked=0, Total=2162 [2018-02-02 20:50:29,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-02-02 20:50:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 301. [2018-02-02 20:50:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-02-02 20:50:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 326 transitions. [2018-02-02 20:50:29,113 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 326 transitions. Word has length 80 [2018-02-02 20:50:29,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:29,113 INFO L432 AbstractCegarLoop]: Abstraction has 301 states and 326 transitions. [2018-02-02 20:50:29,113 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-02 20:50:29,113 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 326 transitions. [2018-02-02 20:50:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-02-02 20:50:29,113 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:29,113 INFO L351 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:29,113 INFO L371 AbstractCegarLoop]: === Iteration 61 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:29,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1976069460, now seen corresponding path program 2 times [2018-02-02 20:50:29,114 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:29,121 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:29,443 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:29,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-02 20:50:29,443 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:29,444 INFO L182 omatonBuilderFactory]: Interpolants [32352#true, 32353#false, 32354#(= 1 (select |#valid| main_~head~0.base)), 32355#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 32356#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 32357#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 32358#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 32359#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 32360#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 32361#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 32362#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 32363#(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)))), 32364#(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) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= main_~x~0.base |main_#t~mem14.base|))), 32365#(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_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.base| main_~head~0.base))), 32366#(= 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))), 32367#(and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 32368#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base))), 32369#(or (not (= 0 |main_#t~mem19|)) (and (= main_~x~0.offset main_~head~0.offset) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base))), 32370#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 32371#(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) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 32372#(= 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))), 32373#(= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem25.base|) |main_#t~mem25.offset|)), 32374#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 32375#(= 0 |main_#t~mem25.offset|), 32376#(= 0 main_~x~0.offset), 32377#(= main_~head~0.offset 0)] [2018-02-02 20:50:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:29,444 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:50:29,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:50:29,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:50:29,444 INFO L87 Difference]: Start difference. First operand 301 states and 326 transitions. Second operand 26 states. [2018-02-02 20:50:30,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:30,386 INFO L93 Difference]: Finished difference Result 321 states and 340 transitions. [2018-02-02 20:50:30,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-02 20:50:30,386 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 81 [2018-02-02 20:50:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:30,387 INFO L225 Difference]: With dead ends: 321 [2018-02-02 20:50:30,387 INFO L226 Difference]: Without dead ends: 321 [2018-02-02 20:50:30,387 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=262, Invalid=1900, Unknown=0, NotChecked=0, Total=2162 [2018-02-02 20:50:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-02-02 20:50:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 300. [2018-02-02 20:50:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-02-02 20:50:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 325 transitions. [2018-02-02 20:50:30,389 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 325 transitions. Word has length 81 [2018-02-02 20:50:30,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:30,389 INFO L432 AbstractCegarLoop]: Abstraction has 300 states and 325 transitions. [2018-02-02 20:50:30,389 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:50:30,390 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 325 transitions. [2018-02-02 20:50:30,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-02-02 20:50:30,390 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:30,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:30,390 INFO L371 AbstractCegarLoop]: === Iteration 62 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:30,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1247595955, now seen corresponding path program 2 times [2018-02-02 20:50:30,391 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:30,400 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-02-02 20:50:30,915 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:30,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-02 20:50:30,915 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:30,916 INFO L182 omatonBuilderFactory]: Interpolants [33041#true, 33042#false, 33043#(= 0 |main_#t~malloc0.offset|), 33044#(= main_~head~0.offset 0), 33045#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 33046#(and (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0)), 33047#(and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 33048#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base)), 33049#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base)), 33050#(and (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 33051#(and (not (= main_~head~0.base |main_#t~mem9.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 33052#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select (store |#memory_int| main_~x~0.base (store (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8) 0)) main_~head~0.base) (+ main_~head~0.offset 8)))), 33053#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (= (select |#valid| main_~x~0.base) 1)), 33054#(and (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 33055#(and (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_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 33056#(and (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 33057#(and (= (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_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 33058#(and (not (= main_~x~0.base |main_#t~malloc12.base|)) (not (= main_~head~0.base |main_#t~malloc12.base|)) (not (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) (not (= main_~x~0.base main_~head~0.base))), 33059#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33060#(and (not (= |main_#t~mem14.base| main_~head~0.base)) (not (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|))), 33061#(and (not (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33062#(not (= 1 (select (select (store |#memory_int| |main_#t~mem16.base| (store (select |#memory_int| |main_#t~mem16.base|) (+ |main_#t~mem16.offset| 8) 2)) main_~head~0.base) (+ main_~head~0.offset 8)))), 33063#(not (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 33064#(and (not (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~head~0.offset 8)))) (= main_~x~0.base main_~head~0.base)), 33065#(not (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))), 33066#(not (= 1 |main_#t~mem24|))] [2018-02-02 20:50:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-02-02 20:50:30,916 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:50:30,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:50:30,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:50:30,916 INFO L87 Difference]: Start difference. First operand 300 states and 325 transitions. Second operand 26 states. [2018-02-02 20:50:31,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:31,614 INFO L93 Difference]: Finished difference Result 318 states and 339 transitions. [2018-02-02 20:50:31,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-02 20:50:31,614 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 81 [2018-02-02 20:50:31,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:31,615 INFO L225 Difference]: With dead ends: 318 [2018-02-02 20:50:31,615 INFO L226 Difference]: Without dead ends: 304 [2018-02-02 20:50:31,615 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=567, Invalid=1983, Unknown=0, NotChecked=0, Total=2550 [2018-02-02 20:50:31,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-02-02 20:50:31,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 280. [2018-02-02 20:50:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2018-02-02 20:50:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 300 transitions. [2018-02-02 20:50:31,617 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 300 transitions. Word has length 81 [2018-02-02 20:50:31,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:31,617 INFO L432 AbstractCegarLoop]: Abstraction has 280 states and 300 transitions. [2018-02-02 20:50:31,617 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:50:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 300 transitions. [2018-02-02 20:50:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-02-02 20:50:31,617 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:31,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:31,617 INFO L371 AbstractCegarLoop]: === Iteration 63 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:31,617 INFO L82 PathProgramCache]: Analyzing trace with hash 520638627, now seen corresponding path program 1 times [2018-02-02 20:50:31,618 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:31,627 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:33,150 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:33,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-02 20:50:33,150 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:33,151 INFO L182 omatonBuilderFactory]: Interpolants [33728#(and (not (= 0 |main_#t~malloc12.base|)) (not (= 0 (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~malloc12.base|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc12.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_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.base|)) (= (store (store (store |#valid| main_~head~0.base 0) (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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) 0) |main_#t~malloc12.base| 0) |old(#valid)|) (not (= 0 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_#t~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))), 33729#(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_~head~0.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.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_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (store (store (store |#valid| main_~head~0.base 0) (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_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 33730#(and (= (store (store (store |#valid| main_~head~0.base 0) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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)|) (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (not (= 0 main_~head~0.base)) (not (= 0 (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~mem14.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)))) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))), 33731#(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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem16.base| (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem16.base| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (store (store (store |#valid| main_~head~0.base 0) (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)) 0) |old(#valid)|) (not (= 0 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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 33732#(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)) (select (select |#memory_$Pointer$.offset| 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)) (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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (store (store (store |#valid| main_~head~0.base 0) (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)) 0) |old(#valid)|) (not (= 0 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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 33733#(and (= main_~x~0.offset main_~head~0.offset) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~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| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (= (store (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0) (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_~head~0.offset)) 0) |old(#valid)|) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= 0 (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_~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_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))))), 33734#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= main_~x~0.offset main_~head~0.offset) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~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| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (= (store (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0) (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_~head~0.offset)) 0) |old(#valid)|) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= 0 (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_~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_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))))), 33735#(or (and (= main_~x~0.offset main_~head~0.offset) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~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| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (= (store (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0) (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_~head~0.offset)) 0) |old(#valid)|) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= 0 (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_~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_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))))) (not (= 0 |main_#t~mem19|))), 33736#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= (store (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) |old(#valid)|) (not (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= |main_#t~mem20.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 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 33737#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |old(#valid)| (store (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) 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)) (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) (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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 33738#(and (not (= 0 (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 (= 0 (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)) (= (store (store (store |#valid| main_~x~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) (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) |old(#valid)|) (not (= 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)))) (not (= (select (select |#memory_$Pointer$.base| 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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 33739#(and (not (= 0 (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 (= 0 (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_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= |old(#valid)| (store (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) (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)) (not (= (select (select |#memory_$Pointer$.base| 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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33740#(and (not (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))) (not (= 0 |main_#t~mem25.base|)) (= (store (store (store |#valid| main_~head~0.base 0) |main_#t~mem25.base| 0) (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|) 0) |old(#valid)|) (not (= main_~head~0.base |main_#t~mem25.base|)) (not (= |main_#t~mem25.base| (select (select |#memory_$Pointer$.base| |main_#t~mem25.base|) |main_#t~mem25.offset|))) (not (= 0 main_~head~0.base))), 33741#(and (= (store (store (store |#valid| main_~head~0.base 0) main_~x~0.base 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))) (not (= main_~head~0.base main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~x~0.base)) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33742#(and (not (= 0 (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)) (= (store (store |#valid| main_~x~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)), 33743#(and (= |old(#valid)| (store (store |#valid| |main_#t~mem27.base| 0) main_~x~0.base 0)) (not (= 0 main_~x~0.base)) (not (= main_~x~0.base |main_#t~mem27.base|)) (not (= 0 |main_#t~mem27.base|))), 33744#(and (not (= 0 main_~x~0.base)) (= (store |#valid| main_~x~0.base 0) |old(#valid)|)), 33715#true, 33716#false, 33717#(= |#valid| |old(#valid)|), 33718#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (not (= 0 |main_#t~malloc0.base|))), 33719#(and (not (= 0 main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|)), 33720#(and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|)), 33721#(and (= 1 (select |#valid| main_~x~0.base)) (= 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)), 33722#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 |main_#t~malloc5.base|)) (not (= 0 main_~head~0.base)) (= (store (store |#valid| main_~head~0.base 0) |main_#t~malloc5.base| 0) |old(#valid)|) (= main_~x~0.base main_~head~0.base)), 33723#(and (= 1 (select |#valid| main_~x~0.base)) (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) (not (= 0 (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) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)), 33724#(and (not (= 0 (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|)) (= |old(#valid)| (store (store |#valid| main_~head~0.base 0) (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset) 0))), 33725#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|)), 33726#(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_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|)), 33727#(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_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|) (= (select |#valid| main_~x~0.base) 1))] [2018-02-02 20:50:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:33,151 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-02 20:50:33,151 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-02 20:50:33,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2018-02-02 20:50:33,151 INFO L87 Difference]: Start difference. First operand 280 states and 300 transitions. Second operand 30 states. [2018-02-02 20:50:34,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:34,842 INFO L93 Difference]: Finished difference Result 282 states and 301 transitions. [2018-02-02 20:50:34,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-02 20:50:34,843 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 82 [2018-02-02 20:50:34,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:34,843 INFO L225 Difference]: With dead ends: 282 [2018-02-02 20:50:34,843 INFO L226 Difference]: Without dead ends: 272 [2018-02-02 20:50:34,843 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 11 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2018-02-02 20:50:34,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-02-02 20:50:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2018-02-02 20:50:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-02-02 20:50:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 291 transitions. [2018-02-02 20:50:34,845 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 291 transitions. Word has length 82 [2018-02-02 20:50:34,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:34,845 INFO L432 AbstractCegarLoop]: Abstraction has 272 states and 291 transitions. [2018-02-02 20:50:34,845 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-02 20:50:34,845 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 291 transitions. [2018-02-02 20:50:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-02-02 20:50:34,846 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:34,846 INFO L351 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:34,846 INFO L371 AbstractCegarLoop]: === Iteration 64 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:34,846 INFO L82 PathProgramCache]: Analyzing trace with hash 627211350, now seen corresponding path program 3 times [2018-02-02 20:50:34,846 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:34,859 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-02-02 20:50:35,067 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:35,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-02-02 20:50:35,068 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:35,068 INFO L182 omatonBuilderFactory]: Interpolants [34337#true, 34338#false, 34339#(= 0 |main_#t~malloc0.offset|), 34340#(= main_~head~0.offset 0), 34341#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 34342#(and (= |main_#t~mem20.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~mem20.offset|) (= main_~head~0.offset 0)), 34343#(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))) (= main_~head~0.offset 0) (or (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~x~0.offset) (= main_~x~0.offset 0))), 34344#(and (or (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 8)) |main_#t~mem18|)) (not (= main_~head~0.offset main_~x~0.offset))) (= main_~head~0.offset 0) (or (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~x~0.offset) (= main_~x~0.offset 0))), 34345#(and (or (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 8)))) (not (= main_~head~0.offset main_~x~0.offset))) (= main_~head~0.offset 0) (or (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~x~0.offset) (= main_~x~0.offset 0))), 34346#(and (= main_~head~0.offset 0) (or (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)))), 34347#(or (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 34348#(or (= 1 (select (select |#memory_int| |main_#t~mem25.base|) (+ 0 8))) (not (= |main_#t~mem25.offset| 0))), 34349#(or (not (= main_~x~0.offset 0)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))), 34350#(or (not (= main_~x~0.offset 0)) (and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= |main_#t~mem24| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))), 34351#(or (<= (+ main_~x~0.offset 1) 0) (not (= main_~head~0.offset 0))), 34352#(not (= main_~head~0.offset 0))] [2018-02-02 20:50:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-02-02 20:50:35,068 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-02 20:50:35,068 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-02 20:50:35,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:50:35,069 INFO L87 Difference]: Start difference. First operand 272 states and 291 transitions. Second operand 16 states. [2018-02-02 20:50:35,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:35,411 INFO L93 Difference]: Finished difference Result 286 states and 292 transitions. [2018-02-02 20:50:35,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-02 20:50:35,411 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 83 [2018-02-02 20:50:35,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:35,412 INFO L225 Difference]: With dead ends: 286 [2018-02-02 20:50:35,412 INFO L226 Difference]: Without dead ends: 239 [2018-02-02 20:50:35,412 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2018-02-02 20:50:35,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-02-02 20:50:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 212. [2018-02-02 20:50:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-02-02 20:50:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 224 transitions. [2018-02-02 20:50:35,414 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 224 transitions. Word has length 83 [2018-02-02 20:50:35,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:35,414 INFO L432 AbstractCegarLoop]: Abstraction has 212 states and 224 transitions. [2018-02-02 20:50:35,414 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-02 20:50:35,414 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 224 transitions. [2018-02-02 20:50:35,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-02-02 20:50:35,414 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:35,414 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:50:35,414 INFO L371 AbstractCegarLoop]: === Iteration 65 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:35,414 INFO L82 PathProgramCache]: Analyzing trace with hash 167876255, now seen corresponding path program 7 times [2018-02-02 20:50:35,415 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:35,428 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:36,073 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:36,073 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-02 20:50:36,073 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:36,073 INFO L182 omatonBuilderFactory]: Interpolants [34881#true, 34882#false, 34883#(= 1 (select |#valid| main_~head~0.base)), 34884#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 34885#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 34886#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 34887#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 34888#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 34889#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 34890#(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)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 34891#(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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base))), 34892#(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)) (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)))), 34893#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 34894#(and (= |main_#t~mem9.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| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.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~mem9.base|))), 34895#(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))) (= 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 (= 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)))), 34896#(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))) (= 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 (= 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 |#valid| main_~x~0.base) 1)), 34897#(and (= 1 (select |#valid| |main_#t~malloc12.base|)) (not (= main_~x~0.base |main_#t~malloc12.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~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.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~malloc12.base|)) (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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))), 34898#(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))) (= 1 (select |#valid| (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)) (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_~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)))), 34899#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) 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.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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 |main_#t~mem14.base|))), 34900#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.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~mem16.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)))))), 34901#(= 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))))), 34902#(= 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))))), 34903#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 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)))))), 34904#(or (= 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))))) (not (= 0 |main_#t~mem19|))), 34905#(= 1 (select |#valid| (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|)))), 34906#(= 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)))), 34907#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 34908#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 34909#(= 1 (select |#valid| |main_#t~mem20.base|)), 34910#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:50:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:36,074 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-02 20:50:36,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-02 20:50:36,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2018-02-02 20:50:36,074 INFO L87 Difference]: Start difference. First operand 212 states and 224 transitions. Second operand 30 states. [2018-02-02 20:50:37,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:37,487 INFO L93 Difference]: Finished difference Result 267 states and 280 transitions. [2018-02-02 20:50:37,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-02 20:50:37,487 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 83 [2018-02-02 20:50:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:37,488 INFO L225 Difference]: With dead ends: 267 [2018-02-02 20:50:37,488 INFO L226 Difference]: Without dead ends: 267 [2018-02-02 20:50:37,488 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=417, Invalid=2889, Unknown=0, NotChecked=0, Total=3306 [2018-02-02 20:50:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-02-02 20:50:37,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 220. [2018-02-02 20:50:37,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-02-02 20:50:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 233 transitions. [2018-02-02 20:50:37,490 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 233 transitions. Word has length 83 [2018-02-02 20:50:37,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:37,490 INFO L432 AbstractCegarLoop]: Abstraction has 220 states and 233 transitions. [2018-02-02 20:50:37,490 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-02 20:50:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 233 transitions. [2018-02-02 20:50:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-02-02 20:50:37,490 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:37,490 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:50:37,490 INFO L371 AbstractCegarLoop]: === Iteration 66 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:37,490 INFO L82 PathProgramCache]: Analyzing trace with hash 167876256, now seen corresponding path program 5 times [2018-02-02 20:50:37,491 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:37,501 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:38,206 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:38,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-02 20:50:38,206 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:38,207 INFO L182 omatonBuilderFactory]: Interpolants [35456#(= 1 (select |#valid| main_~head~0.base)), 35457#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 35458#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 35459#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 35460#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 35461#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem9.offset|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 35462#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 35463#(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)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 35464#(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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base))), 35465#(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)) (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)))), 35466#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 35467#(and (= |main_#t~mem9.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| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.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~mem9.base|))), 35468#(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))) (= 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 (= 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)))), 35469#(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))) (= 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 (= 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 |#valid| main_~x~0.base) 1)), 35470#(and (not (= main_~x~0.base |main_#t~malloc12.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~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc12.base|)) (= 0 |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.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~malloc12.base|)) (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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| |main_#t~malloc12.base|))), 35471#(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))) (= 12 (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)) (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_~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))))), 35472#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) 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.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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 |main_#t~mem14.base|))), 35473#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.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~mem16.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)))) (= 12 (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)))))), 35474#(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)))) (= 12 (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)))))), 35475#(and (= 12 (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))))), 35476#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (and (= 12 (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)))))), 35477#(or (and (= 12 (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))))) (not (= 0 |main_#t~mem19|))), 35478#(and (= 12 (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|)))) (= 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|)))), 35479#(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))) (= 12 (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))))), 35480#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 35481#(and (= 12 (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))), 35482#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 35483#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12)), 35454#true, 35455#false] [2018-02-02 20:50:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:38,207 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-02 20:50:38,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-02 20:50:38,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2018-02-02 20:50:38,207 INFO L87 Difference]: Start difference. First operand 220 states and 233 transitions. Second operand 30 states. [2018-02-02 20:50:39,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:50:39,775 INFO L93 Difference]: Finished difference Result 303 states and 320 transitions. [2018-02-02 20:50:39,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-02 20:50:39,775 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 83 [2018-02-02 20:50:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:50:39,776 INFO L225 Difference]: With dead ends: 303 [2018-02-02 20:50:39,776 INFO L226 Difference]: Without dead ends: 303 [2018-02-02 20:50:39,776 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=260, Invalid=2392, Unknown=0, NotChecked=0, Total=2652 [2018-02-02 20:50:39,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-02-02 20:50:39,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 221. [2018-02-02 20:50:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-02 20:50:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 234 transitions. [2018-02-02 20:50:39,778 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 234 transitions. Word has length 83 [2018-02-02 20:50:39,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:50:39,778 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 234 transitions. [2018-02-02 20:50:39,778 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-02 20:50:39,778 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 234 transitions. [2018-02-02 20:50:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-02-02 20:50:39,778 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:50:39,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:50:39,778 INFO L371 AbstractCegarLoop]: === Iteration 67 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 20:50:39,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1709393188, now seen corresponding path program 4 times [2018-02-02 20:50:39,779 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:50:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:50:39,788 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:50:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:40,388 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:50:40,388 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-02 20:50:40,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:50:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:40,388 INFO L182 omatonBuilderFactory]: Interpolants [36052#true, 36053#false, 36054#(= 1 (select |#valid| main_~head~0.base)), 36055#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 36056#(and (not (= main_~x~0.base |main_#t~malloc5.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 36057#(and (= 1 (select |#valid| main_~x~0.base)) (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)), 36058#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~mem7.base|))), 36059#(and (= |main_#t~mem9.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~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.base|))), 36060#(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_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 36061#(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)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 36062#(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~malloc5.offset|)) main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc5.base|)) (not (= main_~x~0.base |main_#t~malloc5.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~malloc5.base|)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base))), 36063#(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)) (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)))), 36064#(and (= main_~x~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem7.base| (store (select |#memory_$Pointer$.base| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.base)) main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem7.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (+ |main_#t~mem7.offset| 4) main_~x~0.offset)) main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base |main_#t~mem7.base|))), 36065#(and (= |main_#t~mem9.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| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem9.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem9.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~mem9.base|))), 36066#(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))) (= 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 (= 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)))), 36067#(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))) (= 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 (= 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 |#valid| main_~x~0.base) 1)), 36068#(and (= 1 (select |#valid| |main_#t~malloc12.base|)) (not (= main_~x~0.base |main_#t~malloc12.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~malloc12.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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc12.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~malloc12.base|)) main_~head~0.base) main_~head~0.offset) |main_#t~malloc12.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~malloc12.base|)) (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~malloc12.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~malloc12.offset|)) main_~head~0.base) main_~head~0.offset)))), 36069#(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))) (= 1 (select |#valid| (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)) (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_~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)))), 36070#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.offset)) 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.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.base)) main_~head~0.base) main_~head~0.offset)) (select (select (store |#memory_$Pointer$.offset| |main_#t~mem14.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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))) (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem14.base| (store (select |#memory_$Pointer$.base| |main_#t~mem14.base|) (+ |main_#t~mem14.offset| 4) main_~x~0.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 |main_#t~mem14.base|))), 36071#(and (not (= |main_#t~mem16.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem16.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~mem16.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)))))), 36072#(= 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))))), 36073#(= 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))))), 36074#(or (not (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 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)))))), 36075#(or (= 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))))) (not (= 0 |main_#t~mem19|))), 36076#(= 1 (select |#valid| (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|)))), 36077#(= 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)))), 36078#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 36079#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 36080#(= 1 (select |#valid| |main_#t~mem22.base|)), 36081#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 20:50:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:50:40,389 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-02 20:50:40,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-02 20:50:40,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2018-02-02 20:50:40,389 INFO L87 Difference]: Start difference. First operand 221 states and 234 transitions. Second operand 30 states. Received shutdown request... [2018-02-02 20:50:40,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-02-02 20:50:40,974 WARN L491 AbstractCegarLoop]: Verification canceled [2018-02-02 20:50:40,978 WARN L185 ceAbstractionStarter]: Timeout [2018-02-02 20:50:40,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 08:50:40 BoogieIcfgContainer [2018-02-02 20:50:40,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 20:50:40,979 INFO L168 Benchmark]: Toolchain (without parser) took 77179.73 ms. Allocated memory was 400.0 MB in the beginning and 1.3 GB in the end (delta: 941.1 MB). Free memory was 356.9 MB in the beginning and 1.2 GB in the end (delta: -887.0 MB). Peak memory consumption was 54.1 MB. Max. memory is 5.3 GB. [2018-02-02 20:50:40,980 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 400.0 MB. Free memory is still 363.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 20:50:40,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.75 ms. Allocated memory is still 400.0 MB. Free memory was 356.9 MB in the beginning and 345.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-02 20:50:40,980 INFO L168 Benchmark]: Boogie Preprocessor took 30.65 ms. Allocated memory is still 400.0 MB. Free memory was 345.0 MB in the beginning and 343.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-02-02 20:50:40,980 INFO L168 Benchmark]: RCFGBuilder took 443.63 ms. Allocated memory is still 400.0 MB. Free memory was 343.7 MB in the beginning and 308.2 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. [2018-02-02 20:50:40,981 INFO L168 Benchmark]: TraceAbstraction took 76537.18 ms. Allocated memory was 400.0 MB in the beginning and 1.3 GB in the end (delta: 941.1 MB). Free memory was 308.2 MB in the beginning and 1.2 GB in the end (delta: -935.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 5.3 GB. [2018-02-02 20:50:40,981 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 400.0 MB. Free memory is still 363.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 165.75 ms. Allocated memory is still 400.0 MB. Free memory was 356.9 MB in the beginning and 345.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.65 ms. Allocated memory is still 400.0 MB. Free memory was 345.0 MB in the beginning and 343.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 443.63 ms. Allocated memory is still 400.0 MB. Free memory was 343.7 MB in the beginning and 308.2 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 76537.18 ms. Allocated memory was 400.0 MB in the beginning and 1.3 GB in the end (delta: 941.1 MB). Free memory was 308.2 MB in the beginning and 1.2 GB in the end (delta: -935.7 MB). Peak memory consumption was 5.4 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 free always succeeds (line 1037). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1013). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1011). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1012). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1026). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 994). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1036). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1019). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 995). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1007). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1037). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1004). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1024). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1010). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1033). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1021). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1005). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1013). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1034). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1005). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1033). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1037). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1025). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1025). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1019). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1022). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1012). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1030). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 990). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1037). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1026). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1010). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1013). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 995). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1038). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1034). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1011). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1012). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1022). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1013). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 994). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1005). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1038). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1004). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1012). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1005). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1024). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1036). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1007). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1030). Cancelled while BasicCegarLoop was constructing difference of abstraction (221states) and interpolant automaton (currently 19 states, 30 states before enhancement), while ReachableStatesComputation was computing reachable states (45 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 131 locations, 55 error locations. TIMEOUT Result, 76.5s OverallTime, 67 OverallIterations, 4 TraceHistogramMax, 52.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4518 SDtfs, 26860 SDslu, 44359 SDs, 0 SdLazy, 58727 SolverSat, 5231 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2660 GetRequests, 233 SyntacticMatches, 62 SemanticMatches, 2365 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23346 ImplicationChecksByTransitivity, 41.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 83/832 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 66 MinimizatonAttempts, 3011 StatesRemovedByMinimization, 64 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 22.3s InterpolantComputationTime, 3759 NumberOfCodeBlocks, 3759 NumberOfCodeBlocksAsserted, 67 NumberOfCheckSat, 3692 ConstructedInterpolants, 0 QuantifiedInterpolants, 5077955 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 67 InterpolantComputations, 19 PerfectInterpolantSequences, 83/832 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/dll-token_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_20-50-40-986.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-token_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_20-50-40-986.csv Completed graceful shutdown