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/list-ext-properties/simple-ext_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 20:20:40,902 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 20:20:40,903 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 20:20:40,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 20:20:40,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 20:20:40,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 20:20:40,917 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 20:20:40,918 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 20:20:40,920 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 20:20:40,921 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 20:20:40,922 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 20:20:40,922 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 20:20:40,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 20:20:40,924 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 20:20:40,924 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 20:20:40,926 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 20:20:40,928 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 20:20:40,929 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 20:20:40,930 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 20:20:40,931 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 20:20:40,932 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 20:20:40,936 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 20:20:40,937 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 20:20:40,937 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 20:20:40,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 20:20:40,947 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 20:20:40,948 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 20:20:40,948 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 20:20:40,949 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 20:20:40,949 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 20:20:40,949 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 20:20:40,949 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 20:20:40,949 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 20:20:40,950 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 20:20:40,950 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 20:20:40,950 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 20:20:40,950 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 20:20:40,950 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 20:20:40,950 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 20:20:40,950 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 20:20:40,951 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 20:20:40,951 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 20:20:40,951 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 20:20:40,951 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 20:20:40,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 20:20:40,951 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 20:20:40,952 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 20:20:40,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 20:20:40,992 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 20:20:40,995 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 20:20:40,997 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 20:20:40,997 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 20:20:40,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext_1_true-valid-memsafety.i [2018-02-02 20:20:41,139 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 20:20:41,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 20:20:41,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 20:20:41,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 20:20:41,146 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 20:20:41,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ece180a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41, skipping insertion in model container [2018-02-02 20:20:41,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,163 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:20:41,191 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:20:41,285 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:20:41,298 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:20:41,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41 WrapperNode [2018-02-02 20:20:41,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 20:20:41,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 20:20:41,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 20:20:41,306 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 20:20:41,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (1/1) ... [2018-02-02 20:20:41,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 20:20:41,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 20:20:41,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 20:20:41,329 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 20:20:41,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (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 20:20:41,371 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 20:20:41,372 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 20:20:41,372 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-02-02 20:20:41,372 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 20:20:41,372 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 20:20:41,373 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 20:20:41,373 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 20:20:41,373 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 20:20:41,373 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-02-02 20:20:41,373 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 20:20:41,373 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 20:20:41,373 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 20:20:41,530 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 20:20:41,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:20:41 BoogieIcfgContainer [2018-02-02 20:20:41,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 20:20:41,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 20:20:41,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 20:20:41,533 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 20:20:41,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 08:20:41" (1/3) ... [2018-02-02 20:20:41,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ac6658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:20:41, skipping insertion in model container [2018-02-02 20:20:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:20:41" (2/3) ... [2018-02-02 20:20:41,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ac6658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:20:41, skipping insertion in model container [2018-02-02 20:20:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:20:41" (3/3) ... [2018-02-02 20:20:41,536 INFO L107 eAbstractionObserver]: Analyzing ICFG simple-ext_1_true-valid-memsafety.i [2018-02-02 20:20:41,543 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 20:20:41,547 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-02-02 20:20:41,574 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 20:20:41,574 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 20:20:41,574 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 20:20:41,574 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 20:20:41,574 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 20:20:41,575 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 20:20:41,575 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 20:20:41,575 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 20:20:41,576 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 20:20:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-02-02 20:20:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-02 20:20:41,597 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:41,598 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:41,598 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:41,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1616503521, now seen corresponding path program 1 times [2018-02-02 20:20:41,641 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:41,673 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:41,697 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:20:41,697 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 20:20:41,698 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:41,699 INFO 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 20:20:41,699 INFO L182 omatonBuilderFactory]: Interpolants [68#true, 69#false] [2018-02-02 20:20:41,699 INFO 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 20:20:41,700 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-02 20:20:41,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-02 20:20:41,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 20:20:41,709 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-02-02 20:20:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:41,723 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2018-02-02 20:20:41,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-02 20:20:41,788 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-02-02 20:20:41,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:41,796 INFO L225 Difference]: With dead ends: 65 [2018-02-02 20:20:41,796 INFO L226 Difference]: Without dead ends: 57 [2018-02-02 20:20:41,798 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 20:20:41,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-02-02 20:20:41,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-02-02 20:20:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-02-02 20:20:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2018-02-02 20:20:41,824 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 11 [2018-02-02 20:20:41,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:41,824 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2018-02-02 20:20:41,824 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-02 20:20:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2018-02-02 20:20:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 20:20:41,825 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:41,825 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:41,825 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:41,825 INFO L82 PathProgramCache]: Analyzing trace with hash 2050647052, now seen corresponding path program 1 times [2018-02-02 20:20:41,826 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:41,840 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:41,891 INFO 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 20:20:41,891 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:20:41,892 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:20:41,892 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:41,892 INFO 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 20:20:41,892 INFO L182 omatonBuilderFactory]: Interpolants [192#true, 193#false, 194#(= 1 (select |#valid| |main_#t~malloc0.base|)), 195#(= 1 (select |#valid| main_~a~0.base)), 196#(= 1 (select |#valid| main_~p~0.base))] [2018-02-02 20:20:41,893 INFO 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 20:20:41,894 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:20:41,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:20:41,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:20:41,895 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 5 states. [2018-02-02 20:20:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:42,055 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2018-02-02 20:20:42,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 20:20:42,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-02 20:20:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:42,056 INFO L225 Difference]: With dead ends: 75 [2018-02-02 20:20:42,056 INFO L226 Difference]: Without dead ends: 75 [2018-02-02 20:20:42,057 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 20:20:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-02-02 20:20:42,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2018-02-02 20:20:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-02 20:20:42,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2018-02-02 20:20:42,062 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 14 [2018-02-02 20:20:42,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:42,063 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2018-02-02 20:20:42,063 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:20:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2018-02-02 20:20:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 20:20:42,063 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:42,064 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:42,064 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2050647053, now seen corresponding path program 1 times [2018-02-02 20:20:42,065 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:42,081 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:42,144 INFO 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 20:20:42,145 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:20:42,145 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:20:42,145 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:42,145 INFO 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 20:20:42,145 INFO L182 omatonBuilderFactory]: Interpolants [340#true, 341#false, 342#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 343#(and (= 8 (select |#length| main_~a~0.base)) (= 0 main_~a~0.offset)), 344#(and (= (select |#length| main_~p~0.base) 8) (= main_~p~0.offset 0))] [2018-02-02 20:20:42,146 INFO 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 20:20:42,146 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:20:42,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:20:42,146 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:20:42,146 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand 5 states. [2018-02-02 20:20:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:42,264 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2018-02-02 20:20:42,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 20:20:42,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-02 20:20:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:42,265 INFO L225 Difference]: With dead ends: 82 [2018-02-02 20:20:42,265 INFO L226 Difference]: Without dead ends: 82 [2018-02-02 20:20:42,266 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 20:20:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-02-02 20:20:42,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 74. [2018-02-02 20:20:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-02-02 20:20:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2018-02-02 20:20:42,269 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 14 [2018-02-02 20:20:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:42,269 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2018-02-02 20:20:42,269 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:20:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2018-02-02 20:20:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-02 20:20:42,269 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:42,270 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] [2018-02-02 20:20:42,270 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:42,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1493222104, now seen corresponding path program 1 times [2018-02-02 20:20:42,270 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:42,278 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:42,306 INFO 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 20:20:42,307 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:20:42,307 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 20:20:42,307 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:42,307 INFO L182 omatonBuilderFactory]: Interpolants [505#true, 506#false, 507#(not (= 0 |main_#t~malloc0.base|)), 508#(not (= 0 main_~a~0.base)), 509#(not (= 0 main_~p~0.base))] [2018-02-02 20:20:42,308 INFO 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 20:20:42,308 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:20:42,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:20:42,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:20:42,308 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 5 states. [2018-02-02 20:20:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:42,365 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2018-02-02 20:20:42,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 20:20:42,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-02-02 20:20:42,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:42,366 INFO L225 Difference]: With dead ends: 78 [2018-02-02 20:20:42,366 INFO L226 Difference]: Without dead ends: 78 [2018-02-02 20:20:42,366 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-02 20:20:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-02-02 20:20:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2018-02-02 20:20:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-02-02 20:20:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-02-02 20:20:42,370 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 23 [2018-02-02 20:20:42,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:42,370 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-02-02 20:20:42,370 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:20:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-02-02 20:20:42,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 20:20:42,371 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:42,371 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] [2018-02-02 20:20:42,371 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:42,371 INFO L82 PathProgramCache]: Analyzing trace with hash -458760131, now seen corresponding path program 1 times [2018-02-02 20:20:42,372 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:42,389 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:42,522 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:42,522 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-02-02 20:20:42,523 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:42,523 INFO 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 20:20:42,523 INFO L182 omatonBuilderFactory]: Interpolants [672#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 673#(and (= 0 |main_#t~mem11.offset|) (= 0 |main_#t~mem11.base|)), 674#(and (= main_~p~0.base 0) (= main_~p~0.offset 0)), 666#true, 667#false, 668#(= 0 |main_#t~malloc0.offset|), 669#(= 0 main_~a~0.offset), 670#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 671#(and (= 0 (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))))] [2018-02-02 20:20:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:42,524 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 20:20:42,524 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 20:20:42,524 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-02 20:20:42,524 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 9 states. [2018-02-02 20:20:42,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:42,767 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2018-02-02 20:20:42,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 20:20:42,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-02-02 20:20:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:42,768 INFO L225 Difference]: With dead ends: 105 [2018-02-02 20:20:42,768 INFO L226 Difference]: Without dead ends: 105 [2018-02-02 20:20:42,769 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:20:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-02-02 20:20:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2018-02-02 20:20:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-02-02 20:20:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2018-02-02 20:20:42,772 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 25 [2018-02-02 20:20:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:42,772 INFO L432 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2018-02-02 20:20:42,772 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 20:20:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2018-02-02 20:20:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 20:20:42,773 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:42,773 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] [2018-02-02 20:20:42,773 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:42,773 INFO L82 PathProgramCache]: Analyzing trace with hash -290149679, now seen corresponding path program 1 times [2018-02-02 20:20:42,773 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:42,784 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:42,823 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:20:42,823 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 20:20:42,824 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:42,824 INFO 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 20:20:42,824 INFO L182 omatonBuilderFactory]: Interpolants [880#(= 1 (select |#valid| main_~t~0.base)), 881#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))), 882#(= 1 (select |#valid| |main_#t~mem6.base|)), 883#(= 1 (select |#valid| main_~p~0.base)), 877#true, 878#false, 879#(= 1 (select |#valid| |main_#t~malloc4.base|))] [2018-02-02 20:20:42,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:42,824 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 20:20:42,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 20:20:42,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-02 20:20:42,824 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 7 states. [2018-02-02 20:20:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:42,976 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-02-02 20:20:42,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 20:20:42,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-02-02 20:20:42,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:42,977 INFO L225 Difference]: With dead ends: 87 [2018-02-02 20:20:42,977 INFO L226 Difference]: Without dead ends: 87 [2018-02-02 20:20:42,977 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-02-02 20:20:42,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-02-02 20:20:42,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2018-02-02 20:20:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-02-02 20:20:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2018-02-02 20:20:42,982 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 25 [2018-02-02 20:20:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:42,982 INFO L432 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2018-02-02 20:20:42,983 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 20:20:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2018-02-02 20:20:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 20:20:42,983 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:42,983 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] [2018-02-02 20:20:42,984 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:42,984 INFO L82 PathProgramCache]: Analyzing trace with hash -290149678, now seen corresponding path program 1 times [2018-02-02 20:20:42,984 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:42,998 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:43,072 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:20:43,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 20:20:43,072 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:43,072 INFO 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 20:20:43,073 INFO L182 omatonBuilderFactory]: Interpolants [1063#true, 1064#false, 1065#(and (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 1066#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset)), 1067#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 1068#(and (= 0 |main_#t~mem6.offset|) (= 8 (select |#length| |main_#t~mem6.base|))), 1069#(and (= (select |#length| main_~p~0.base) 8) (= main_~p~0.offset 0))] [2018-02-02 20:20:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:43,073 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 20:20:43,073 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 20:20:43,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-02 20:20:43,074 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand 7 states. [2018-02-02 20:20:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:43,237 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2018-02-02 20:20:43,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 20:20:43,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-02-02 20:20:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:43,238 INFO L225 Difference]: With dead ends: 95 [2018-02-02 20:20:43,238 INFO L226 Difference]: Without dead ends: 95 [2018-02-02 20:20:43,238 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-02-02 20:20:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-02-02 20:20:43,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 70. [2018-02-02 20:20:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-02-02 20:20:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2018-02-02 20:20:43,242 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 25 [2018-02-02 20:20:43,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:43,242 INFO L432 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2018-02-02 20:20:43,243 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 20:20:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2018-02-02 20:20:43,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-02-02 20:20:43,243 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:43,244 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] [2018-02-02 20:20:43,244 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:43,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1498253566, now seen corresponding path program 1 times [2018-02-02 20:20:43,244 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:43,260 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:20:43,405 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:43,405 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-02-02 20:20:43,405 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:43,405 INFO 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 20:20:43,405 INFO L182 omatonBuilderFactory]: Interpolants [1248#true, 1249#false, 1250#(= 0 |main_#t~malloc0.offset|), 1251#(= 0 main_~a~0.offset), 1252#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 1253#(and (= 0 (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 1254#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 1255#(and (= 0 |main_#t~mem13.offset|) (= 0 |main_#t~mem13.base|) (= main_~p~0.offset 0)), 1256#(and (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= 0 main_~t~0.base)), 1257#(and (= 0 main_~t~0.offset) (= 0 main_~t~0.base)), 1258#(and (= main_~p~0.base 0) (= main_~p~0.offset 0))] [2018-02-02 20:20:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:20:43,406 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-02 20:20:43,406 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-02 20:20:43,406 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-02-02 20:20:43,406 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand 11 states. [2018-02-02 20:20:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:43,618 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2018-02-02 20:20:43,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-02 20:20:43,618 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2018-02-02 20:20:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:43,619 INFO L225 Difference]: With dead ends: 91 [2018-02-02 20:20:43,619 INFO L226 Difference]: Without dead ends: 91 [2018-02-02 20:20:43,619 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-02-02 20:20:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-02-02 20:20:43,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 79. [2018-02-02 20:20:43,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-02-02 20:20:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-02-02 20:20:43,623 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 34 [2018-02-02 20:20:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:43,624 INFO L432 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-02-02 20:20:43,624 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-02 20:20:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-02-02 20:20:43,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-02-02 20:20:43,625 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:43,625 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:43,625 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:43,625 INFO L82 PathProgramCache]: Analyzing trace with hash -798781214, now seen corresponding path program 1 times [2018-02-02 20:20:43,626 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:43,635 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:20:43,743 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:43,743 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-02-02 20:20:43,743 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:43,744 INFO L182 omatonBuilderFactory]: Interpolants [1447#true, 1448#false, 1449#(= |#valid| |old(#valid)|), 1450#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (not (= 0 |main_#t~malloc0.base|))), 1451#(and (= (store |#valid| main_~a~0.base 0) |old(#valid)|) (not (= 0 main_~a~0.base))), 1452#(and (= (store |#valid| main_~p~0.base 0) |old(#valid)|) (not (= 0 main_~p~0.base)))] [2018-02-02 20:20:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:20:43,744 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 20:20:43,744 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 20:20:43,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 20:20:43,744 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2018-02-02 20:20:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:43,836 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2018-02-02 20:20:43,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 20:20:43,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-02-02 20:20:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:43,837 INFO L225 Difference]: With dead ends: 83 [2018-02-02 20:20:43,837 INFO L226 Difference]: Without dead ends: 61 [2018-02-02 20:20:43,837 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-02-02 20:20:43,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-02-02 20:20:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2018-02-02 20:20:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-02-02 20:20:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2018-02-02 20:20:43,839 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 35 [2018-02-02 20:20:43,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:43,839 INFO L432 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2018-02-02 20:20:43,839 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 20:20:43,839 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2018-02-02 20:20:43,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-02-02 20:20:43,840 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:43,840 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] [2018-02-02 20:20:43,840 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:43,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1054481496, now seen corresponding path program 1 times [2018-02-02 20:20:43,841 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:43,853 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:44,039 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:44,039 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-02 20:20:44,039 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:44,039 INFO 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 20:20:44,040 INFO L182 omatonBuilderFactory]: Interpolants [1603#true, 1604#false, 1605#(= 0 |main_#t~malloc0.offset|), 1606#(= 0 main_~a~0.offset), 1607#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 1608#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 1609#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| |main_#t~malloc4.base|)) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base)), 1610#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= 1 (select |#valid| main_~t~0.base))), 1611#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 1612#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~a~0.base |main_#t~mem6.base|))), 1613#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 1614#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 1615#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))))), 1616#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0)), 1617#(= 1 (select |#valid| |main_#t~mem11.base|)), 1618#(= 1 (select |#valid| main_~p~0.base))] [2018-02-02 20:20:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:44,040 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-02 20:20:44,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-02 20:20:44,041 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:20:44,041 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 16 states. [2018-02-02 20:20:44,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:44,428 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2018-02-02 20:20:44,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-02-02 20:20:44,428 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 36 [2018-02-02 20:20:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:44,429 INFO L225 Difference]: With dead ends: 114 [2018-02-02 20:20:44,429 INFO L226 Difference]: Without dead ends: 114 [2018-02-02 20:20:44,430 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2018-02-02 20:20:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-02-02 20:20:44,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 82. [2018-02-02 20:20:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-02-02 20:20:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2018-02-02 20:20:44,433 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 36 [2018-02-02 20:20:44,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:44,433 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2018-02-02 20:20:44,433 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-02 20:20:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2018-02-02 20:20:44,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-02-02 20:20:44,434 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:44,434 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] [2018-02-02 20:20:44,434 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:44,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1054481497, now seen corresponding path program 1 times [2018-02-02 20:20:44,436 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:44,457 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:44,692 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:44,692 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-02 20:20:44,692 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:44,692 INFO 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 20:20:44,692 INFO L182 omatonBuilderFactory]: Interpolants [1856#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 1857#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 1858#(and (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 1859#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 1860#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 1861#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| |main_#t~mem11.base|))), 1862#(and (= (select |#length| main_~p~0.base) 8) (= main_~p~0.offset 0)), 1847#true, 1848#false, 1849#(= 0 |main_#t~malloc0.offset|), 1850#(= 0 main_~a~0.offset), 1851#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 1852#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 1853#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 1854#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 1855#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base main_~a~0.base))] [2018-02-02 20:20:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:44,693 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-02 20:20:44,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-02 20:20:44,693 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:20:44,693 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 16 states. [2018-02-02 20:20:45,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:45,134 INFO L93 Difference]: Finished difference Result 129 states and 139 transitions. [2018-02-02 20:20:45,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-02 20:20:45,135 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 36 [2018-02-02 20:20:45,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:45,135 INFO L225 Difference]: With dead ends: 129 [2018-02-02 20:20:45,136 INFO L226 Difference]: Without dead ends: 129 [2018-02-02 20:20:45,136 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2018-02-02 20:20:45,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-02-02 20:20:45,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 81. [2018-02-02 20:20:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-02-02 20:20:45,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2018-02-02 20:20:45,140 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 36 [2018-02-02 20:20:45,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:45,140 INFO L432 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2018-02-02 20:20:45,140 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-02 20:20:45,140 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2018-02-02 20:20:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-02-02 20:20:45,141 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:45,141 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:20:45,142 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:45,142 INFO L82 PathProgramCache]: Analyzing trace with hash -529462586, now seen corresponding path program 2 times [2018-02-02 20:20:45,142 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:45,158 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:45,498 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:45,532 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-02-02 20:20:45,532 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:45,533 INFO 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 20:20:45,533 INFO L182 omatonBuilderFactory]: Interpolants [2112#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 2113#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 2114#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))), 2115#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 2116#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 2117#(and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (= 8 (select |#length| |main_#t~mem11.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 2118#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= (+ main_~p~0.offset 1) 0)), 2119#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))), 2120#(and (= 0 |main_#t~mem11.offset|) (= 0 |main_#t~mem11.base|)), 2121#(and (= main_~p~0.base 0) (= main_~p~0.offset 0)), 2103#true, 2104#false, 2105#(= 0 |main_#t~malloc0.offset|), 2106#(= 0 main_~a~0.offset), 2107#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 2108#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 2109#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 2110#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 2111#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base main_~a~0.base))] [2018-02-02 20:20:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:45,533 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-02 20:20:45,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-02 20:20:45,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2018-02-02 20:20:45,533 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 19 states. [2018-02-02 20:20:46,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:46,087 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2018-02-02 20:20:46,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-02 20:20:46,088 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 42 [2018-02-02 20:20:46,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:46,088 INFO L225 Difference]: With dead ends: 116 [2018-02-02 20:20:46,088 INFO L226 Difference]: Without dead ends: 116 [2018-02-02 20:20:46,089 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=255, Invalid=1227, Unknown=0, NotChecked=0, Total=1482 [2018-02-02 20:20:46,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-02-02 20:20:46,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 87. [2018-02-02 20:20:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-02-02 20:20:46,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2018-02-02 20:20:46,092 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 42 [2018-02-02 20:20:46,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:46,093 INFO L432 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2018-02-02 20:20:46,093 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-02 20:20:46,093 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2018-02-02 20:20:46,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-02-02 20:20:46,094 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:46,094 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] [2018-02-02 20:20:46,094 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:46,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1369291587, now seen corresponding path program 1 times [2018-02-02 20:20:46,095 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:46,108 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:46,276 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:46,276 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-02-02 20:20:46,276 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:46,276 INFO 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 20:20:46,276 INFO L182 omatonBuilderFactory]: Interpolants [2368#(= 0 main_~a~0.offset), 2369#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 2370#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 2371#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= |main_#t~malloc4.base| 0)) (= main_~p~0.base main_~a~0.base)), 2372#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (not (= main_~t~0.base 0))), 2373#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0))), 2374#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 2375#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 2376#(and (= 0 main_~a~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)) 0))), 2377#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0))), 2378#(not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0)), 2379#(not (= |main_#t~mem11.base| 0)), 2380#(not (= main_~p~0.base 0)), 2365#true, 2366#false, 2367#(= 0 |main_#t~malloc0.offset|)] [2018-02-02 20:20:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:46,276 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-02 20:20:46,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-02 20:20:46,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-02-02 20:20:46,277 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand 16 states. [2018-02-02 20:20:46,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:46,600 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2018-02-02 20:20:46,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-02 20:20:46,601 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2018-02-02 20:20:46,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:46,601 INFO L225 Difference]: With dead ends: 121 [2018-02-02 20:20:46,602 INFO L226 Difference]: Without dead ends: 121 [2018-02-02 20:20:46,602 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=817, Unknown=0, NotChecked=0, Total=1056 [2018-02-02 20:20:46,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-02-02 20:20:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 87. [2018-02-02 20:20:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-02-02 20:20:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2018-02-02 20:20:46,605 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 45 [2018-02-02 20:20:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:46,606 INFO L432 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2018-02-02 20:20:46,606 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-02 20:20:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2018-02-02 20:20:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-02 20:20:46,607 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:46,607 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:46,607 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:46,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1676071261, now seen corresponding path program 3 times [2018-02-02 20:20:46,608 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:46,623 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:46,903 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 20:20:46,903 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:46,903 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-02 20:20:46,904 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:46,904 INFO 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 20:20:46,904 INFO L182 omatonBuilderFactory]: Interpolants [2624#false, 2625#(= 0 |main_#t~malloc0.offset|), 2626#(= 0 main_~a~0.offset), 2627#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 2628#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 2629#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base)), 2630#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 2631#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 2632#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 2633#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 2634#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 2635#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 2636#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))))), 2637#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~a~0.base |main_#t~mem6.base|))), 2638#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 2639#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 2640#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))))), 2641#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0)), 2642#(= 1 (select |#valid| |main_#t~mem11.base|)), 2643#(= 1 (select |#valid| main_~p~0.base)), 2623#true] [2018-02-02 20:20:46,904 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 20:20:46,904 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-02 20:20:46,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-02 20:20:46,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2018-02-02 20:20:46,905 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 21 states. [2018-02-02 20:20:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:47,591 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2018-02-02 20:20:47,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:20:47,591 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 47 [2018-02-02 20:20:47,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:47,592 INFO L225 Difference]: With dead ends: 142 [2018-02-02 20:20:47,592 INFO L226 Difference]: Without dead ends: 142 [2018-02-02 20:20:47,592 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=365, Invalid=1441, Unknown=0, NotChecked=0, Total=1806 [2018-02-02 20:20:47,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-02-02 20:20:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 110. [2018-02-02 20:20:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-02-02 20:20:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2018-02-02 20:20:47,594 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 47 [2018-02-02 20:20:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:47,594 INFO L432 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2018-02-02 20:20:47,595 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-02 20:20:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2018-02-02 20:20:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-02 20:20:47,595 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:47,595 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:47,595 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:47,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1676071262, now seen corresponding path program 2 times [2018-02-02 20:20:47,596 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:47,605 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:47,965 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 20:20:47,965 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:47,965 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-02 20:20:47,966 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:47,966 INFO 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 20:20:47,966 INFO L182 omatonBuilderFactory]: Interpolants [2944#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 2945#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 2946#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 2947#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 2948#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 2949#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 2950#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 2951#(and (<= 0 main_~p~0.offset) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 2952#(and (<= 0 main_~p~0.offset) (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 2953#(and (<= 0 main_~p~0.offset) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 2954#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (<= 8 (select |#length| main_~p~0.base))), 2955#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 2956#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 2957#(and (= 0 main_~a~0.offset) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))), 2958#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 2959#(and (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 2960#(and (<= 8 (select |#length| |main_#t~mem11.base|)) (= 0 |main_#t~mem11.offset|)), 2961#(and (= main_~p~0.offset 0) (<= 8 (select |#length| main_~p~0.base))), 2940#true, 2941#false, 2942#(= 0 |main_#t~malloc0.offset|), 2943#(= 0 main_~a~0.offset)] [2018-02-02 20:20:47,966 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 20:20:47,966 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-02 20:20:47,966 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-02 20:20:47,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2018-02-02 20:20:47,966 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand 22 states. [2018-02-02 20:20:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:48,863 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2018-02-02 20:20:48,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-02 20:20:48,863 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 47 [2018-02-02 20:20:48,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:48,864 INFO L225 Difference]: With dead ends: 157 [2018-02-02 20:20:48,864 INFO L226 Difference]: Without dead ends: 157 [2018-02-02 20:20:48,864 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=416, Invalid=2034, Unknown=0, NotChecked=0, Total=2450 [2018-02-02 20:20:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-02-02 20:20:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 109. [2018-02-02 20:20:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-02-02 20:20:48,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2018-02-02 20:20:48,866 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 47 [2018-02-02 20:20:48,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:48,866 INFO L432 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2018-02-02 20:20:48,866 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-02 20:20:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2018-02-02 20:20:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-02 20:20:48,868 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:48,868 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] [2018-02-02 20:20:48,868 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:48,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1468082325, now seen corresponding path program 2 times [2018-02-02 20:20:48,868 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:48,880 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:49,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:49,137 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:49,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:20:49,137 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:49,137 INFO 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 20:20:49,137 INFO L182 omatonBuilderFactory]: Interpolants [3296#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base))), 3297#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 3298#(and (= main_~p~0.offset 0) (not (= 0 main_~p~0.base)) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 3299#(and (= main_~p~0.offset 0) (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) |main_#t~mem13.base|))), 3300#(and (= main_~p~0.offset 0) (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) main_~t~0.base))), 3301#(= 1 (select |#valid| main_~t~0.base)), 3302#(= (select |#valid| main_~p~0.base) 1), 3284#true, 3285#false, 3286#(and (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 3287#(and (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base))), 3288#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 3289#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 3290#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| |main_#t~malloc4.base|)) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base)), 3291#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base) (= 1 (select |#valid| main_~t~0.base))), 3292#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 3293#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 3294#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 3295#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))))] [2018-02-02 20:20:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:49,137 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-02 20:20:49,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-02 20:20:49,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-02-02 20:20:49,138 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 19 states. [2018-02-02 20:20:49,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:49,631 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2018-02-02 20:20:49,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-02 20:20:49,631 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2018-02-02 20:20:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:49,632 INFO L225 Difference]: With dead ends: 132 [2018-02-02 20:20:49,632 INFO L226 Difference]: Without dead ends: 132 [2018-02-02 20:20:49,632 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=1074, Unknown=0, NotChecked=0, Total=1406 [2018-02-02 20:20:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-02-02 20:20:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 119. [2018-02-02 20:20:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-02-02 20:20:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2018-02-02 20:20:49,634 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 51 [2018-02-02 20:20:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:49,634 INFO L432 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2018-02-02 20:20:49,634 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-02 20:20:49,634 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2018-02-02 20:20:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-02 20:20:49,635 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:49,635 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] [2018-02-02 20:20:49,635 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1468082326, now seen corresponding path program 1 times [2018-02-02 20:20:49,636 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:49,645 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:49,860 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:49,860 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-02 20:20:49,860 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:49,860 INFO 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 20:20:49,861 INFO L182 omatonBuilderFactory]: Interpolants [3592#true, 3593#false, 3594#(= 0 |main_#t~malloc0.offset|), 3595#(= 0 main_~a~0.offset), 3596#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 3597#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 3598#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 3599#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 3600#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base main_~a~0.base)), 3601#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 3602#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 3603#(and (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 3604#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 3605#(and (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= main_~p~0.base main_~a~0.base) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))))), 3606#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 3607#(and (= 8 (select |#length| |main_#t~mem13.base|)) (= 0 |main_#t~mem13.offset|) (= main_~p~0.offset 0)), 3608#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0)), 3609#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset)), 3610#(and (= (select |#length| main_~p~0.base) 8) (= main_~p~0.offset 0))] [2018-02-02 20:20:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:49,861 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-02 20:20:49,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-02 20:20:49,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2018-02-02 20:20:49,861 INFO L87 Difference]: Start difference. First operand 119 states and 130 transitions. Second operand 19 states. [2018-02-02 20:20:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:50,402 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions. [2018-02-02 20:20:50,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-02 20:20:50,402 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2018-02-02 20:20:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:50,403 INFO L225 Difference]: With dead ends: 143 [2018-02-02 20:20:50,403 INFO L226 Difference]: Without dead ends: 143 [2018-02-02 20:20:50,404 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=1110, Unknown=0, NotChecked=0, Total=1406 [2018-02-02 20:20:50,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-02-02 20:20:50,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 118. [2018-02-02 20:20:50,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-02-02 20:20:50,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2018-02-02 20:20:50,405 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 51 [2018-02-02 20:20:50,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:50,406 INFO L432 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2018-02-02 20:20:50,406 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-02 20:20:50,406 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2018-02-02 20:20:50,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-02-02 20:20:50,406 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:50,406 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] [2018-02-02 20:20:50,406 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:50,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1734089685, now seen corresponding path program 1 times [2018-02-02 20:20:50,407 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:50,415 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-02-02 20:20:50,537 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:50,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-02 20:20:50,571 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:50,571 INFO L182 omatonBuilderFactory]: Interpolants [3910#true, 3911#false, 3912#(= 0 |main_#t~malloc0.offset|), 3913#(= 0 main_~a~0.offset), 3914#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 3915#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 3916#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= |main_#t~malloc4.base| 0)) (= main_~p~0.base main_~a~0.base)), 3917#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (not (= main_~t~0.base 0))), 3918#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0))), 3919#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 3920#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 3921#(and (= 0 main_~a~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)) 0))), 3922#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0))), 3923#(not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0)), 3924#(not (= |main_#t~mem13.base| 0)), 3925#(not (= main_~t~0.base 0)), 3926#(not (= main_~p~0.base 0))] [2018-02-02 20:20:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-02-02 20:20:50,572 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-02 20:20:50,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-02 20:20:50,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-02-02 20:20:50,572 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand 17 states. [2018-02-02 20:20:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:51,018 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2018-02-02 20:20:51,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-02 20:20:51,018 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 52 [2018-02-02 20:20:51,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:51,019 INFO L225 Difference]: With dead ends: 140 [2018-02-02 20:20:51,019 INFO L226 Difference]: Without dead ends: 140 [2018-02-02 20:20:51,020 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2018-02-02 20:20:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-02-02 20:20:51,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 116. [2018-02-02 20:20:51,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-02-02 20:20:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 125 transitions. [2018-02-02 20:20:51,022 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 125 transitions. Word has length 52 [2018-02-02 20:20:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:51,022 INFO L432 AbstractCegarLoop]: Abstraction has 116 states and 125 transitions. [2018-02-02 20:20:51,022 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-02 20:20:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 125 transitions. [2018-02-02 20:20:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-02 20:20:51,023 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:51,023 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:20:51,023 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:51,023 INFO L82 PathProgramCache]: Analyzing trace with hash -589223925, now seen corresponding path program 4 times [2018-02-02 20:20:51,024 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:51,040 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:51,742 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:51,742 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-02 20:20:51,742 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:51,742 INFO 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 20:20:51,743 INFO L182 omatonBuilderFactory]: Interpolants [4224#false, 4225#(= 0 |main_#t~malloc0.offset|), 4226#(= 0 main_~a~0.offset), 4227#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 4228#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 4229#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| |main_#t~malloc4.base|)) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 4230#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= 1 (select |#valid| main_~t~0.base))), 4231#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 4232#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 1 (select |#valid| |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 4233#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (or (<= (+ main_~p~0.offset 1) 0) (= main_~p~0.offset 0)) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 4234#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 4235#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 1 (select |#valid| |main_#t~malloc4.base|)) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 4236#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base)) (= 1 (select |#valid| main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 4237#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 4238#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 4239#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 4240#(and (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 4241#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 4242#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 4243#(and (= 0 |main_#t~mem11.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 8 (select |#length| |main_#t~mem11.base|))), 4244#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0)), 4245#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (and (= (select |#length| main_~p~0.base) 8) (or (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)))), 4246#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 4247#(= 1 (select |#valid| |main_#t~mem11.base|)), 4248#(= 1 (select |#valid| main_~p~0.base)), 4223#true] [2018-02-02 20:20:51,743 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:51,743 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-02 20:20:51,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-02 20:20:51,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2018-02-02 20:20:51,744 INFO L87 Difference]: Start difference. First operand 116 states and 125 transitions. Second operand 26 states. [2018-02-02 20:20:52,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:52,818 INFO L93 Difference]: Finished difference Result 161 states and 174 transitions. [2018-02-02 20:20:52,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-02 20:20:52,818 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 53 [2018-02-02 20:20:52,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:52,818 INFO L225 Difference]: With dead ends: 161 [2018-02-02 20:20:52,818 INFO L226 Difference]: Without dead ends: 161 [2018-02-02 20:20:52,819 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=413, Invalid=2137, Unknown=0, NotChecked=0, Total=2550 [2018-02-02 20:20:52,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-02-02 20:20:52,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 123. [2018-02-02 20:20:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-02-02 20:20:52,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 134 transitions. [2018-02-02 20:20:52,821 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 134 transitions. Word has length 53 [2018-02-02 20:20:52,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:52,821 INFO L432 AbstractCegarLoop]: Abstraction has 123 states and 134 transitions. [2018-02-02 20:20:52,822 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-02 20:20:52,822 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 134 transitions. [2018-02-02 20:20:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-02 20:20:52,822 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:52,822 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:20:52,822 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:52,823 INFO L82 PathProgramCache]: Analyzing trace with hash -589223924, now seen corresponding path program 3 times [2018-02-02 20:20:52,823 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:52,836 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:53,377 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:53,377 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-02 20:20:53,377 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:53,378 INFO L182 omatonBuilderFactory]: Interpolants [4583#true, 4584#false, 4585#(= 0 |main_#t~malloc0.offset|), 4586#(= 0 main_~a~0.offset), 4587#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 4588#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 4589#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 4590#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 4591#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 4592#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 4593#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 4594#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 4595#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 4596#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 8 (select |#length| main_~p~0.base))), 4597#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 4598#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 4599#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 4600#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 4601#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 4602#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 8 (select |#length| |main_#t~mem11.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 4603#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (<= (+ main_~p~0.offset 1) 0) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))), 4604#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))), 4605#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| |main_#t~mem11.base|))), 4606#(and (= main_~p~0.offset 0) (= 8 (select |#length| main_~p~0.base)))] [2018-02-02 20:20:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:53,378 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-02 20:20:53,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-02 20:20:53,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2018-02-02 20:20:53,379 INFO L87 Difference]: Start difference. First operand 123 states and 134 transitions. Second operand 24 states. [2018-02-02 20:20:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:54,435 INFO L93 Difference]: Finished difference Result 176 states and 189 transitions. [2018-02-02 20:20:54,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-02-02 20:20:54,435 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 53 [2018-02-02 20:20:54,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:54,436 INFO L225 Difference]: With dead ends: 176 [2018-02-02 20:20:54,436 INFO L226 Difference]: Without dead ends: 176 [2018-02-02 20:20:54,436 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=329, Invalid=1833, Unknown=0, NotChecked=0, Total=2162 [2018-02-02 20:20:54,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-02-02 20:20:54,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 122. [2018-02-02 20:20:54,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-02-02 20:20:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2018-02-02 20:20:54,438 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 53 [2018-02-02 20:20:54,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:54,438 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2018-02-02 20:20:54,438 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-02 20:20:54,438 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2018-02-02 20:20:54,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-02-02 20:20:54,439 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:54,439 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:54,439 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:54,439 INFO L82 PathProgramCache]: Analyzing trace with hash -864298018, now seen corresponding path program 3 times [2018-02-02 20:20:54,439 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:54,447 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:54,651 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:54,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-02 20:20:54,651 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:54,651 INFO 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 20:20:54,652 INFO L182 omatonBuilderFactory]: Interpolants [4960#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 4961#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 4962#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 4963#(and (= 0 main_~a~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base main_~t~0.base))), 4964#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0))), 4965#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 4966#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 4967#(and (= 0 main_~a~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)) 0))), 4968#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0))), 4969#(and (= main_~p~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0))), 4970#(not (= |main_#t~mem11.base| 0)), 4971#(not (= main_~p~0.base 0)), 4951#true, 4952#false, 4953#(= 0 |main_#t~malloc0.offset|), 4954#(= 0 main_~a~0.offset), 4955#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 4956#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 4957#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= |main_#t~malloc4.base| 0)) (= main_~p~0.base main_~a~0.base)), 4958#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (not (= main_~t~0.base 0))), 4959#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0)))] [2018-02-02 20:20:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:54,652 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-02 20:20:54,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-02 20:20:54,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2018-02-02 20:20:54,652 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand 21 states. [2018-02-02 20:20:55,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:55,082 INFO L93 Difference]: Finished difference Result 141 states and 150 transitions. [2018-02-02 20:20:55,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-02 20:20:55,082 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 56 [2018-02-02 20:20:55,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:55,083 INFO L225 Difference]: With dead ends: 141 [2018-02-02 20:20:55,083 INFO L226 Difference]: Without dead ends: 141 [2018-02-02 20:20:55,083 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=301, Invalid=1181, Unknown=0, NotChecked=0, Total=1482 [2018-02-02 20:20:55,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-02-02 20:20:55,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 128. [2018-02-02 20:20:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-02-02 20:20:55,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 137 transitions. [2018-02-02 20:20:55,085 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 137 transitions. Word has length 56 [2018-02-02 20:20:55,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:55,085 INFO L432 AbstractCegarLoop]: Abstraction has 128 states and 137 transitions. [2018-02-02 20:20:55,085 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-02 20:20:55,085 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 137 transitions. [2018-02-02 20:20:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-02-02 20:20:55,085 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:55,086 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 20:20:55,086 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:55,086 INFO L82 PathProgramCache]: Analyzing trace with hash 771432777, now seen corresponding path program 4 times [2018-02-02 20:20:55,086 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:55,093 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:55,408 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:55,408 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-02 20:20:55,408 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:55,408 INFO 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 20:20:55,408 INFO L182 omatonBuilderFactory]: Interpolants [5280#(= 0 main_~a~0.offset), 5281#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 5282#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 5283#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 5284#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 5285#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base main_~a~0.base)), 5286#(and (= 0 main_~a~0.offset) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 5287#(and (or (and (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))) (<= (+ main_~p~0.offset 1) 0)) (= 0 main_~a~0.offset)), 5288#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))), 5289#(and (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 5290#(and (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.base main_~a~0.base)), 5291#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 5292#(and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem13.base|) (+ 0 4)))), 5293#(and (= 0 (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~t~0.base) (+ 0 4)))), 5294#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 5295#(or (and (= 0 |main_#t~mem13.offset|) (= 0 |main_#t~mem13.base|)) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 5296#(or (and (= 0 main_~t~0.offset) (= 0 main_~t~0.base)) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 5297#(and (= 0 main_~t~0.offset) (= 0 main_~t~0.base)), 5298#(and (= main_~p~0.base 0) (= main_~p~0.offset 0)), 5277#true, 5278#false, 5279#(= 0 |main_#t~malloc0.offset|)] [2018-02-02 20:20:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:55,409 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-02 20:20:55,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-02 20:20:55,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2018-02-02 20:20:55,409 INFO L87 Difference]: Start difference. First operand 128 states and 137 transitions. Second operand 22 states. [2018-02-02 20:20:56,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:56,076 INFO L93 Difference]: Finished difference Result 140 states and 148 transitions. [2018-02-02 20:20:56,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-02 20:20:56,076 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-02-02 20:20:56,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:56,077 INFO L225 Difference]: With dead ends: 140 [2018-02-02 20:20:56,077 INFO L226 Difference]: Without dead ends: 140 [2018-02-02 20:20:56,078 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=309, Invalid=1761, Unknown=0, NotChecked=0, Total=2070 [2018-02-02 20:20:56,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-02-02 20:20:56,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2018-02-02 20:20:56,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-02-02 20:20:56,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 145 transitions. [2018-02-02 20:20:56,080 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 145 transitions. Word has length 57 [2018-02-02 20:20:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:56,080 INFO L432 AbstractCegarLoop]: Abstraction has 136 states and 145 transitions. [2018-02-02 20:20:56,080 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-02 20:20:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 145 transitions. [2018-02-02 20:20:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-02 20:20:56,080 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:56,080 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] [2018-02-02 20:20:56,080 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:56,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1855389193, now seen corresponding path program 2 times [2018-02-02 20:20:56,081 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:56,089 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:56,532 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:56,532 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-02 20:20:56,532 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:56,532 INFO L182 omatonBuilderFactory]: Interpolants [5632#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= |old(#valid)| (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0)) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 5633#(and (= (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 5634#(and (= (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 5635#(and (= (store (store |#valid| main_~a~0.base 0) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) 4) 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 5636#(and (= (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base))), 5637#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base) (= (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) 4) 0) |old(#valid)|)), 5638#(and (= |old(#valid)| (store (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= 0 main_~p~0.base))), 5639#(and (= (store (store |#valid| main_~p~0.base 0) |main_#t~mem13.base| 0) |old(#valid)|) (not (= main_~p~0.base |main_#t~mem13.base|)) (not (= main_~p~0.base 0))), 5640#(and (= |old(#valid)| (store (store |#valid| main_~p~0.base 0) main_~t~0.base 0)) (not (= main_~p~0.base 0)) (not (= main_~p~0.base main_~t~0.base))), 5641#(= |old(#valid)| (store |#valid| main_~t~0.base 0)), 5642#(= (store |#valid| main_~p~0.base 0) |old(#valid)|), 5643#(and (= (store |#valid| main_~p~0.base 0) |old(#valid)|) (or (not (= main_~p~0.offset 0)) (not (= main_~p~0.base 0)))), 5623#true, 5624#false, 5625#(= |#valid| |old(#valid)|), 5626#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 5627#(and (= (store |#valid| main_~a~0.base 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base))), 5628#(and (= (store |#valid| main_~a~0.base 0) |old(#valid)|) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 5629#(and (= (store |#valid| main_~a~0.base 0) |old(#valid)|) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 5630#(and (= (store (store |#valid| main_~a~0.base 0) |main_#t~malloc4.base| 0) |old(#valid)|) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base)), 5631#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~t~0.base)) (= (store (store |#valid| main_~a~0.base 0) main_~t~0.base 0) |old(#valid)|) (= main_~p~0.base main_~a~0.base))] [2018-02-02 20:20:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:20:56,533 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-02 20:20:56,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-02 20:20:56,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-02-02 20:20:56,533 INFO L87 Difference]: Start difference. First operand 136 states and 145 transitions. Second operand 21 states. [2018-02-02 20:20:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:57,059 INFO L93 Difference]: Finished difference Result 138 states and 146 transitions. [2018-02-02 20:20:57,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-02 20:20:57,060 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 58 [2018-02-02 20:20:57,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:57,060 INFO L225 Difference]: With dead ends: 138 [2018-02-02 20:20:57,060 INFO L226 Difference]: Without dead ends: 104 [2018-02-02 20:20:57,060 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2018-02-02 20:20:57,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-02-02 20:20:57,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-02-02 20:20:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-02-02 20:20:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2018-02-02 20:20:57,062 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 58 [2018-02-02 20:20:57,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:57,062 INFO L432 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2018-02-02 20:20:57,062 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-02 20:20:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2018-02-02 20:20:57,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-02 20:20:57,063 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:57,063 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:57,063 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:57,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1614858440, now seen corresponding path program 5 times [2018-02-02 20:20:57,064 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:57,082 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:57,782 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:57,782 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-02 20:20:57,782 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:57,783 INFO 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 20:20:57,783 INFO L182 omatonBuilderFactory]: Interpolants [5916#true, 5917#false, 5918#(= |main_#t~malloc0.offset| 0), 5919#(= main_~a~0.offset 0), 5920#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 5921#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 5922#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 5923#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 5924#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 5925#(and (= (select |#valid| main_~a~0.base) 1) (= main_~a~0.offset 0) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 5926#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 5927#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 5928#(and (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~a~0.base main_~t~0.base))), 5929#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~a~0.offset 0) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 5930#(and (<= 1 main_~i~0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= main_~a~0.base |main_#t~mem6.base|))), 5931#(and (<= 2 main_~i~0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~a~0.base))), 5932#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base)) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~malloc4.offset|)) (not (= main_~a~0.base |main_#t~malloc4.base|)))), 5933#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (or (and (<= 2 main_~i~0) (= main_~a~0.offset main_~t~0.offset)) (not (= main_~a~0.base main_~t~0.base)))), 5934#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (or (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (and (<= 2 main_~i~0) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))))), 5935#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~mem6.offset|)) (not (= main_~a~0.base |main_#t~mem6.base|)))), 5936#(and (= 0 main_~a~0.offset) (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))))), 5937#(and (or (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))) (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset))) (= 0 main_~a~0.offset)), 5938#(and (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))))) (= 0 main_~a~0.offset)), 5939#(and (or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))) (= main_~p~0.offset 0)), 5940#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= |main_#t~mem10| main_~i~0))) (= main_~p~0.offset 0)), 5941#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0)), 5942#(= 1 (select |#valid| |main_#t~mem11.base|)), 5943#(= 1 (select |#valid| main_~p~0.base))] [2018-02-02 20:20:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:57,783 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-02 20:20:57,783 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-02 20:20:57,783 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2018-02-02 20:20:57,784 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 28 states. [2018-02-02 20:20:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:20:58,876 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2018-02-02 20:20:58,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:20:58,877 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 58 [2018-02-02 20:20:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:20:58,877 INFO L225 Difference]: With dead ends: 150 [2018-02-02 20:20:58,877 INFO L226 Difference]: Without dead ends: 150 [2018-02-02 20:20:58,878 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=465, Invalid=2397, Unknown=0, NotChecked=0, Total=2862 [2018-02-02 20:20:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-02-02 20:20:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 127. [2018-02-02 20:20:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-02-02 20:20:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2018-02-02 20:20:58,879 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 58 [2018-02-02 20:20:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:20:58,880 INFO L432 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2018-02-02 20:20:58,880 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-02 20:20:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2018-02-02 20:20:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-02-02 20:20:58,880 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:20:58,880 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:20:58,880 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:20:58,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1614858439, now seen corresponding path program 4 times [2018-02-02 20:20:58,881 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:20:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:20:58,895 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:20:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:59,572 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:20:59,572 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-02 20:20:59,572 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:20:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:59,572 INFO L182 omatonBuilderFactory]: Interpolants [6273#true, 6274#false, 6275#(= |main_#t~malloc0.offset| 0), 6276#(= main_~a~0.offset 0), 6277#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 6278#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 6279#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|)) (= main_~i~0 0)), 6280#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 6281#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 6282#(and (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 6283#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 6284#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 6285#(and (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 6286#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 6287#(and (<= 1 main_~i~0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~a~0.base |main_#t~mem6.base|))), 6288#(and (<= 2 main_~i~0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~a~0.base))), 6289#(and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~malloc4.offset|) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 6290#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= main_~a~0.offset main_~t~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))))), 6291#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 6292#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset |main_#t~mem6.offset|)), 6293#(and (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)))) (= 0 main_~a~0.offset)), 6294#(and (= 0 main_~a~0.offset) (or (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset)) (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))))), 6295#(and (= 0 main_~a~0.offset) (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))))), 6296#(and (= main_~p~0.offset 0) (or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))))), 6297#(and (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= |main_#t~mem10| main_~i~0))) (= main_~p~0.offset 0)), 6298#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 6299#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| |main_#t~mem11.base|))), 6300#(and (= (select |#length| main_~p~0.base) 8) (= main_~p~0.offset 0))] [2018-02-02 20:20:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:20:59,572 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-02 20:20:59,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-02 20:20:59,573 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2018-02-02 20:20:59,573 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand 28 states. [2018-02-02 20:21:00,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:00,817 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2018-02-02 20:21:00,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-02 20:21:00,854 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 58 [2018-02-02 20:21:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:00,854 INFO L225 Difference]: With dead ends: 164 [2018-02-02 20:21:00,855 INFO L226 Difference]: Without dead ends: 164 [2018-02-02 20:21:00,855 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2018-02-02 20:21:00,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-02-02 20:21:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 126. [2018-02-02 20:21:00,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-02-02 20:21:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2018-02-02 20:21:00,857 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 58 [2018-02-02 20:21:00,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:00,857 INFO L432 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2018-02-02 20:21:00,857 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-02 20:21:00,857 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2018-02-02 20:21:00,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-02-02 20:21:00,857 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:00,857 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:00,857 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:00,858 INFO L82 PathProgramCache]: Analyzing trace with hash 2126464057, now seen corresponding path program 6 times [2018-02-02 20:21:00,858 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:00,872 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:01,638 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:01,638 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:01,638 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-02 20:21:01,638 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:01,639 INFO 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 20:21:01,639 INFO L182 omatonBuilderFactory]: Interpolants [6656#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base)) (= 0 |main_#t~malloc4.offset|)), 6657#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 6658#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 6659#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (not (= main_~a~0.base |main_#t~mem6.base|))), 6660#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base)) (or (and (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (<= (+ main_~p~0.offset 1) 0))), 6661#(and (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 6662#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 6663#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 6664#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| |main_#t~mem11.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 6665#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (+ main_~p~0.offset 1) 0)), 6666#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))), 6667#(and (= 0 |main_#t~mem11.offset|) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 6668#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= (+ main_~p~0.offset 1) 0)), 6669#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 6670#(and (= 0 |main_#t~mem11.offset|) (= 0 |main_#t~mem11.base|)), 6671#(and (= main_~p~0.base 0) (= main_~p~0.offset 0)), 6645#true, 6646#false, 6647#(= 0 |main_#t~malloc0.offset|), 6648#(= 0 main_~a~0.offset), 6649#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 6650#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 6651#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 6652#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 6653#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 6654#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 6655#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base)))] [2018-02-02 20:21:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:01,639 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-02-02 20:21:01,639 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-02-02 20:21:01,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2018-02-02 20:21:01,640 INFO L87 Difference]: Start difference. First operand 126 states and 136 transitions. Second operand 27 states. [2018-02-02 20:21:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:03,036 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2018-02-02 20:21:03,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:21:03,036 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 59 [2018-02-02 20:21:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:03,037 INFO L225 Difference]: With dead ends: 153 [2018-02-02 20:21:03,037 INFO L226 Difference]: Without dead ends: 153 [2018-02-02 20:21:03,037 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=338, Invalid=2418, Unknown=0, NotChecked=0, Total=2756 [2018-02-02 20:21:03,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-02-02 20:21:03,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 132. [2018-02-02 20:21:03,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-02-02 20:21:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 142 transitions. [2018-02-02 20:21:03,039 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 142 transitions. Word has length 59 [2018-02-02 20:21:03,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:03,039 INFO L432 AbstractCegarLoop]: Abstraction has 132 states and 142 transitions. [2018-02-02 20:21:03,039 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-02-02 20:21:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 142 transitions. [2018-02-02 20:21:03,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-02-02 20:21:03,039 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:03,039 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:03,039 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:03,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2102581008, now seen corresponding path program 5 times [2018-02-02 20:21:03,040 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:03,052 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:21:03,488 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:03,488 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-02 20:21:03,489 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:03,489 INFO 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 20:21:03,489 INFO L182 omatonBuilderFactory]: Interpolants [7009#true, 7010#false, 7011#(and (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 7012#(and (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base))), 7013#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 7014#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 7015#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base)), 7016#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 7017#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 7018#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base |main_#t~mem6.base|))), 7019#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 7020#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 7021#(and (not (= main_~a~0.base main_~p~0.base)) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base main_~t~0.base))), 7022#(and (not (= main_~a~0.base main_~p~0.base)) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 7023#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base |main_#t~mem6.base|))), 7024#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 7025#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 7026#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base))), 7027#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 7028#(and (= main_~p~0.offset 0) (not (= 0 main_~p~0.base)) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 7029#(and (= main_~p~0.offset 0) (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) |main_#t~mem13.base|))), 7030#(and (= main_~p~0.offset 0) (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) main_~t~0.base))), 7031#(= 1 (select |#valid| main_~t~0.base)), 7032#(= (select |#valid| main_~p~0.base) 1)] [2018-02-02 20:21:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:21:03,489 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-02 20:21:03,490 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-02 20:21:03,490 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2018-02-02 20:21:03,490 INFO L87 Difference]: Start difference. First operand 132 states and 142 transitions. Second operand 24 states. [2018-02-02 20:21:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:04,389 INFO L93 Difference]: Finished difference Result 151 states and 161 transitions. [2018-02-02 20:21:04,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:21:04,389 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 62 [2018-02-02 20:21:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:04,390 INFO L225 Difference]: With dead ends: 151 [2018-02-02 20:21:04,390 INFO L226 Difference]: Without dead ends: 151 [2018-02-02 20:21:04,390 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=369, Invalid=1701, Unknown=0, NotChecked=0, Total=2070 [2018-02-02 20:21:04,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-02-02 20:21:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 142. [2018-02-02 20:21:04,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-02-02 20:21:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 154 transitions. [2018-02-02 20:21:04,392 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 154 transitions. Word has length 62 [2018-02-02 20:21:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:04,392 INFO L432 AbstractCegarLoop]: Abstraction has 142 states and 154 transitions. [2018-02-02 20:21:04,392 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-02 20:21:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 154 transitions. [2018-02-02 20:21:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-02-02 20:21:04,393 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:04,393 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:04,393 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:04,393 INFO L82 PathProgramCache]: Analyzing trace with hash -2102581007, now seen corresponding path program 2 times [2018-02-02 20:21:04,393 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:04,401 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:21:04,872 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:04,872 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-02 20:21:04,873 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:04,873 INFO 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 20:21:04,873 INFO L182 omatonBuilderFactory]: Interpolants [7392#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset)), 7393#(and (= (select |#length| main_~p~0.base) 8) (= main_~p~0.offset 0)), 7370#true, 7371#false, 7372#(= 0 |main_#t~malloc0.offset|), 7373#(= 0 main_~a~0.offset), 7374#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 7375#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 7376#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 7377#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 7378#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 7379#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 7380#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 7381#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 7382#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 7383#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 7384#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 7385#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 7386#(and (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 7387#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 7388#(and (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= main_~p~0.base main_~a~0.base) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))))), 7389#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 7390#(and (= 8 (select |#length| |main_#t~mem13.base|)) (= 0 |main_#t~mem13.offset|) (= main_~p~0.offset 0)), 7391#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0))] [2018-02-02 20:21:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-02 20:21:04,874 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-02 20:21:04,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-02 20:21:04,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2018-02-02 20:21:04,874 INFO L87 Difference]: Start difference. First operand 142 states and 154 transitions. Second operand 24 states. [2018-02-02 20:21:05,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:05,771 INFO L93 Difference]: Finished difference Result 162 states and 172 transitions. [2018-02-02 20:21:05,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:21:05,771 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 62 [2018-02-02 20:21:05,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:05,772 INFO L225 Difference]: With dead ends: 162 [2018-02-02 20:21:05,772 INFO L226 Difference]: Without dead ends: 162 [2018-02-02 20:21:05,773 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1696, Unknown=0, NotChecked=0, Total=2070 [2018-02-02 20:21:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-02-02 20:21:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 141. [2018-02-02 20:21:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-02-02 20:21:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2018-02-02 20:21:05,776 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 62 [2018-02-02 20:21:05,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:05,776 INFO L432 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2018-02-02 20:21:05,776 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-02 20:21:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2018-02-02 20:21:05,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-02 20:21:05,776 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:05,776 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-02-02 20:21:05,776 INFO L371 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:05,777 INFO L82 PathProgramCache]: Analyzing trace with hash -755503312, now seen corresponding path program 3 times [2018-02-02 20:21:05,777 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:05,789 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-02-02 20:21:06,057 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:06,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-02 20:21:06,057 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:06,058 INFO L182 omatonBuilderFactory]: Interpolants [7744#(= 0 main_~a~0.offset), 7745#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 7746#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 7747#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= |main_#t~malloc4.base| 0)) (= main_~p~0.base main_~a~0.base)), 7748#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (not (= main_~t~0.base 0))), 7749#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0))), 7750#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 7751#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 7752#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 7753#(and (= 0 main_~a~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base main_~t~0.base))), 7754#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0))), 7755#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 7756#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0)) (not (= main_~p~0.base main_~a~0.base))), 7757#(and (= 0 main_~a~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)) 0))), 7758#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) 0))), 7759#(and (= main_~p~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0))), 7760#(and (not (= |main_#t~mem13.base| 0)) (= main_~p~0.offset 0)), 7761#(and (= main_~p~0.offset 0) (not (= main_~t~0.base 0))), 7762#(not (= main_~t~0.base 0)), 7763#(not (= main_~p~0.base 0)), 7741#true, 7742#false, 7743#(= 0 |main_#t~malloc0.offset|)] [2018-02-02 20:21:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-02-02 20:21:06,058 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-02 20:21:06,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-02 20:21:06,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2018-02-02 20:21:06,058 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand 23 states. [2018-02-02 20:21:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:06,618 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2018-02-02 20:21:06,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-02-02 20:21:06,619 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2018-02-02 20:21:06,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:06,619 INFO L225 Difference]: With dead ends: 154 [2018-02-02 20:21:06,619 INFO L226 Difference]: Without dead ends: 154 [2018-02-02 20:21:06,620 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=1681, Unknown=0, NotChecked=0, Total=2070 [2018-02-02 20:21:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-02-02 20:21:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 147. [2018-02-02 20:21:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-02-02 20:21:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2018-02-02 20:21:06,622 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 63 [2018-02-02 20:21:06,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:06,622 INFO L432 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2018-02-02 20:21:06,622 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-02 20:21:06,622 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2018-02-02 20:21:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-02-02 20:21:06,622 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:06,622 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:06,623 INFO L371 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:06,623 INFO L82 PathProgramCache]: Analyzing trace with hash -317817434, now seen corresponding path program 7 times [2018-02-02 20:21:06,623 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:06,632 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:07,575 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:07,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-02 20:21:07,575 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:07,575 INFO 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 20:21:07,576 INFO L182 omatonBuilderFactory]: Interpolants [8128#(and (= 0 main_~a~0.offset) (or (and (<= 2 main_~i~0) (= main_~a~0.offset main_~t~0.offset)) (not (= main_~a~0.base main_~t~0.base))) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base))), 8129#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (or (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (and (<= 2 main_~i~0) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))))), 8130#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~mem6.offset|)) (not (= main_~a~0.base |main_#t~mem6.base|)))), 8131#(and (= 0 main_~a~0.offset) (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))))), 8132#(and (= 0 main_~a~0.offset) (or (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))))) (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset)))), 8133#(and (or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0))) (= 0 main_~a~0.offset)), 8134#(and (or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))) (= main_~p~0.offset 0)), 8135#(and (or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= |main_#t~mem10| main_~i~0))) (= main_~p~0.offset 0)), 8136#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 8137#(and (= 0 |main_#t~mem11.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))))), 8138#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0)), 8139#(= 1 (select |#valid| |main_#t~mem11.base|)), 8140#(= 1 (select |#valid| main_~p~0.base)), 8111#true, 8112#false, 8113#(= |main_#t~malloc0.offset| 0), 8114#(= main_~a~0.offset 0), 8115#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 8116#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 8117#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= main_~i~0 0)), 8118#(and (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 8119#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 8120#(and (= (select |#valid| main_~a~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 8121#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 8122#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 8123#(and (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 8124#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 8125#(and (<= 1 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 8126#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~a~0.base))), 8127#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~malloc4.offset|)) (not (= main_~a~0.base |main_#t~malloc4.base|))))] [2018-02-02 20:21:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:07,576 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-02 20:21:07,576 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-02 20:21:07,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2018-02-02 20:21:07,576 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 30 states. [2018-02-02 20:21:09,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:09,398 INFO L93 Difference]: Finished difference Result 176 states and 188 transitions. [2018-02-02 20:21:09,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-02 20:21:09,398 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 64 [2018-02-02 20:21:09,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:09,399 INFO L225 Difference]: With dead ends: 176 [2018-02-02 20:21:09,399 INFO L226 Difference]: Without dead ends: 176 [2018-02-02 20:21:09,400 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=524, Invalid=3258, Unknown=0, NotChecked=0, Total=3782 [2018-02-02 20:21:09,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-02-02 20:21:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 151. [2018-02-02 20:21:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-02-02 20:21:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 163 transitions. [2018-02-02 20:21:09,402 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 163 transitions. Word has length 64 [2018-02-02 20:21:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:09,402 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 163 transitions. [2018-02-02 20:21:09,402 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-02 20:21:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 163 transitions. [2018-02-02 20:21:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-02-02 20:21:09,402 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:09,402 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:09,402 INFO L371 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:09,403 INFO L82 PathProgramCache]: Analyzing trace with hash -317817433, now seen corresponding path program 5 times [2018-02-02 20:21:09,403 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:09,422 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:10,534 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:10,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-02 20:21:10,534 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:10,534 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 20:21:10,535 INFO L182 omatonBuilderFactory]: Interpolants [8532#true, 8533#false, 8534#(= |main_#t~malloc0.offset| 0), 8535#(= main_~a~0.offset 0), 8536#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 8537#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 8538#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|)) (= main_~i~0 0)), 8539#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 8540#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 8541#(and (= 1 (select |#valid| main_~a~0.base)) (= main_~a~0.offset 0) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 8542#(and (<= 1 main_~i~0) (= 1 (select |#valid| main_~a~0.base)) (= main_~a~0.offset 0) (or (<= (+ main_~p~0.offset 1) 0) (= main_~p~0.offset 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 8543#(and (<= 1 main_~i~0) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 8544#(and (= (select |#length| main_~p~0.base) 8) (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 8545#(and (= 8 (select |#length| main_~t~0.base)) (= (select |#length| main_~p~0.base) 8) (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| main_~a~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 8546#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#length| main_~p~0.base) 8) (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 8547#(and (<= 1 main_~i~0) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| main_~a~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 8 (select |#length| |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 8548#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| main_~a~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 8549#(and (<= 2 main_~i~0) (not (= main_~a~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= main_~a~0.offset |main_#t~malloc4.offset|) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 8550#(and (<= 2 main_~i~0) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~a~0.offset main_~t~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (<= (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) 8) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 8551#(and (<= 2 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 8552#(and (<= 2 main_~i~0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= main_~a~0.offset |main_#t~mem6.offset|) (not (= main_~a~0.base |main_#t~mem6.base|))), 8553#(and (= 0 main_~a~0.offset) (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))))), 8554#(and (or (and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) 8)) (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset))) (= 0 main_~a~0.offset)), 8555#(and (= 0 main_~a~0.offset) (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))))), 8556#(and (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0))) (= main_~p~0.offset 0)), 8557#(and (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (not (= |main_#t~mem10| main_~i~0))) (= main_~p~0.offset 0)), 8558#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 8559#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4))) (<= (select |#length| |main_#t~mem11.base|) 8)), 8560#(and (or (not (= main_~p~0.offset 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))) (or (<= main_~p~0.offset 0) (<= (select |#length| main_~p~0.base) 8))), 8561#(and (<= 0 main_~p~0.offset) (or (not (= main_~p~0.offset 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))) (or (<= main_~p~0.offset 0) (<= (select |#length| main_~p~0.base) 8))), 8562#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| |main_#t~mem11.base|))), 8563#(and (= main_~p~0.offset 0) (= 8 (select |#length| main_~p~0.base)))] [2018-02-02 20:21:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:10,535 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-02 20:21:10,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-02 20:21:10,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=879, Unknown=0, NotChecked=0, Total=992 [2018-02-02 20:21:10,535 INFO L87 Difference]: Start difference. First operand 151 states and 163 transitions. Second operand 32 states. [2018-02-02 20:21:12,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:12,129 INFO L93 Difference]: Finished difference Result 193 states and 205 transitions. [2018-02-02 20:21:12,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-02 20:21:12,129 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 64 [2018-02-02 20:21:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:12,130 INFO L225 Difference]: With dead ends: 193 [2018-02-02 20:21:12,130 INFO L226 Difference]: Without dead ends: 193 [2018-02-02 20:21:12,131 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=428, Invalid=2878, Unknown=0, NotChecked=0, Total=3306 [2018-02-02 20:21:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-02-02 20:21:12,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 153. [2018-02-02 20:21:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-02-02 20:21:12,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 164 transitions. [2018-02-02 20:21:12,132 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 164 transitions. Word has length 64 [2018-02-02 20:21:12,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:12,133 INFO L432 AbstractCegarLoop]: Abstraction has 153 states and 164 transitions. [2018-02-02 20:21:12,133 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-02 20:21:12,133 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 164 transitions. [2018-02-02 20:21:12,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-02-02 20:21:12,133 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:12,133 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:12,133 INFO L371 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:12,133 INFO L82 PathProgramCache]: Analyzing trace with hash 368980324, now seen corresponding path program 6 times [2018-02-02 20:21:12,134 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:12,143 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:12,922 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:12,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-02 20:21:12,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:12,922 INFO 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 20:21:12,923 INFO L182 omatonBuilderFactory]: Interpolants [8962#true, 8963#false, 8964#(and (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 8965#(and (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base))), 8966#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 8967#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 8968#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 8969#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 8970#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 8971#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (not (= 0 main_~a~0.base)) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 8972#(and (or (and (= main_~p~0.offset 0) (not (= 0 main_~a~0.base))) (<= (+ main_~p~0.offset 1) 0)) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 8973#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 8974#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 1 (select |#valid| |main_#t~malloc4.base|)) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base main_~a~0.base)) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) main_~p~0.base)), 8975#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~t~0.base)) (= 1 (select |#valid| main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 8976#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 8977#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 8978#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 8979#(and (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))))), 8980#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base))), 8981#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.base main_~a~0.base) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))), 8982#(and (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))))), 8983#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 8984#(and (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (not (= 0 main_~p~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))), 8985#(and (= main_~p~0.offset 0) (not (= main_~p~0.base 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)))) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4))))), 8986#(and (= main_~t~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)))) (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))), 8987#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)))) (not (= main_~t~0.base (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))), 8988#(or (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 8989#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))))), 8990#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) |main_#t~mem13.base|)))), 8991#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) main_~t~0.base)))), 8992#(= 1 (select |#valid| main_~t~0.base)), 8993#(= (select |#valid| main_~p~0.base) 1)] [2018-02-02 20:21:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:12,923 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-02 20:21:12,923 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-02 20:21:12,923 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=883, Unknown=0, NotChecked=0, Total=992 [2018-02-02 20:21:12,923 INFO L87 Difference]: Start difference. First operand 153 states and 164 transitions. Second operand 32 states. [2018-02-02 20:21:14,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:14,384 INFO L93 Difference]: Finished difference Result 165 states and 176 transitions. [2018-02-02 20:21:14,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-02 20:21:14,384 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 68 [2018-02-02 20:21:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:14,385 INFO L225 Difference]: With dead ends: 165 [2018-02-02 20:21:14,385 INFO L226 Difference]: Without dead ends: 165 [2018-02-02 20:21:14,386 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1152 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=613, Invalid=3943, Unknown=0, NotChecked=0, Total=4556 [2018-02-02 20:21:14,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-02-02 20:21:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 157. [2018-02-02 20:21:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-02 20:21:14,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 170 transitions. [2018-02-02 20:21:14,387 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 170 transitions. Word has length 68 [2018-02-02 20:21:14,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:14,387 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 170 transitions. [2018-02-02 20:21:14,387 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-02 20:21:14,388 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 170 transitions. [2018-02-02 20:21:14,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-02-02 20:21:14,388 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:14,388 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:14,388 INFO L371 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:14,388 INFO L82 PathProgramCache]: Analyzing trace with hash 368980325, now seen corresponding path program 3 times [2018-02-02 20:21:14,389 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:14,402 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:15,173 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:15,174 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-02 20:21:15,174 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:15,174 INFO 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 20:21:15,174 INFO L182 omatonBuilderFactory]: Interpolants [9408#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 9409#(and (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))))), 9410#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 9411#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem13.base|) (+ 0 4)))), 9412#(and (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~t~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))), 9413#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~t~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))), 9414#(or (<= (+ main_~p~0.offset 1) 0) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= 1 main_~p~0.offset)), 9415#(or (and (= 8 (select |#length| |main_#t~mem13.base|)) (= 0 |main_#t~mem13.offset|)) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 9416#(or (<= (+ main_~p~0.offset 1) 0) (and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset)) (<= 1 main_~p~0.offset)), 9417#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset)), 9418#(and (= main_~p~0.offset 0) (= 8 (select |#length| main_~p~0.base))), 9388#true, 9389#false, 9390#(= 0 |main_#t~malloc0.offset|), 9391#(= 0 main_~a~0.offset), 9392#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 9393#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 9394#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 9395#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 9396#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 9397#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 9398#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (or (<= (+ main_~p~0.offset 1) 0) (= main_~p~0.offset 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 9399#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 9400#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 9401#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 9402#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))))), 9403#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 9404#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 9405#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))), 9406#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 9407#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))] [2018-02-02 20:21:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:15,174 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-02 20:21:15,174 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-02 20:21:15,175 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2018-02-02 20:21:15,175 INFO L87 Difference]: Start difference. First operand 157 states and 170 transitions. Second operand 31 states. [2018-02-02 20:21:16,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:16,443 INFO L93 Difference]: Finished difference Result 176 states and 187 transitions. [2018-02-02 20:21:16,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-02 20:21:16,443 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 68 [2018-02-02 20:21:16,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:16,444 INFO L225 Difference]: With dead ends: 176 [2018-02-02 20:21:16,444 INFO L226 Difference]: Without dead ends: 176 [2018-02-02 20:21:16,445 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=491, Invalid=3415, Unknown=0, NotChecked=0, Total=3906 [2018-02-02 20:21:16,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-02-02 20:21:16,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2018-02-02 20:21:16,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-02-02 20:21:16,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 171 transitions. [2018-02-02 20:21:16,447 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 171 transitions. Word has length 68 [2018-02-02 20:21:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:16,448 INFO L432 AbstractCegarLoop]: Abstraction has 159 states and 171 transitions. [2018-02-02 20:21:16,448 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-02 20:21:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 171 transitions. [2018-02-02 20:21:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-02-02 20:21:16,448 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:16,448 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:16,448 INFO L371 AbstractCegarLoop]: === Iteration 34 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:16,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1446513348, now seen corresponding path program 4 times [2018-02-02 20:21:16,449 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:16,458 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:21:17,044 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:17,044 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-02 20:21:17,045 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:17,045 INFO 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 20:21:17,045 INFO L182 omatonBuilderFactory]: Interpolants [9818#true, 9819#false, 9820#(= 0 |main_#t~malloc0.offset|), 9821#(= 0 main_~a~0.offset), 9822#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 9823#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 9824#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 9825#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 9826#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 9827#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 9828#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (or (<= (+ main_~p~0.offset 1) 0) (= main_~p~0.offset 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 9829#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 9830#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= |main_#t~malloc4.base| 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 9831#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= main_~t~0.base 0)) (not (= main_~a~0.base main_~t~0.base))), 9832#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)) 0))), 9833#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 9834#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 9835#(and (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)) 0)) (= 0 main_~a~0.offset)), 9836#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 9837#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)) 0)) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 9838#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)) 0)) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 9839#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)) 0)) (= main_~p~0.offset 0)), 9840#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)) 0)) (= main_~p~0.offset 0)), 9841#(and (not (= (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)) 0)) (= main_~p~0.offset 0)), 9842#(not (= (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)) 0)), 9843#(or (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0))), 9844#(or (not (= |main_#t~mem13.base| 0)) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 9845#(or (<= (+ main_~p~0.offset 1) 0) (not (= main_~t~0.base 0)) (<= 1 main_~p~0.offset)), 9846#(not (= main_~t~0.base 0)), 9847#(not (= main_~p~0.base 0))] [2018-02-02 20:21:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:21:17,045 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-02 20:21:17,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-02 20:21:17,046 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2018-02-02 20:21:17,046 INFO L87 Difference]: Start difference. First operand 159 states and 171 transitions. Second operand 30 states. [2018-02-02 20:21:18,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:18,061 INFO L93 Difference]: Finished difference Result 173 states and 184 transitions. [2018-02-02 20:21:18,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-02 20:21:18,061 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 69 [2018-02-02 20:21:18,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:18,062 INFO L225 Difference]: With dead ends: 173 [2018-02-02 20:21:18,062 INFO L226 Difference]: Without dead ends: 173 [2018-02-02 20:21:18,062 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=552, Invalid=3480, Unknown=0, NotChecked=0, Total=4032 [2018-02-02 20:21:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-02-02 20:21:18,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 159. [2018-02-02 20:21:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-02-02 20:21:18,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 170 transitions. [2018-02-02 20:21:18,064 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 170 transitions. Word has length 69 [2018-02-02 20:21:18,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:18,064 INFO L432 AbstractCegarLoop]: Abstraction has 159 states and 170 transitions. [2018-02-02 20:21:18,064 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-02 20:21:18,064 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 170 transitions. [2018-02-02 20:21:18,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-02-02 20:21:18,065 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:18,065 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:18,065 INFO L371 AbstractCegarLoop]: === Iteration 35 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:18,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1205982595, now seen corresponding path program 8 times [2018-02-02 20:21:18,065 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:18,076 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:18,615 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:18,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-02 20:21:18,615 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:18,615 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 20:21:18,616 INFO L182 omatonBuilderFactory]: Interpolants [10248#true, 10249#false, 10250#(= 0 |main_#t~malloc0.offset|), 10251#(= 0 main_~a~0.offset), 10252#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 10253#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 10254#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base)), 10255#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 10256#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 10257#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 10258#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 10259#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 10260#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 10261#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1)), 10262#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 10263#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~p~0.base main_~a~0.base))), 10264#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 10265#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (not (= main_~a~0.base main_~t~0.base))), 10266#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))))), 10267#(and (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~a~0.base |main_#t~mem6.base|))), 10268#(and (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 10269#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 10270#(and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= main_~a~0.base main_~t~0.base))), 10271#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))))), 10272#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~a~0.base |main_#t~mem6.base|))), 10273#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 10274#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 10275#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))))), 10276#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0)), 10277#(= 1 (select |#valid| |main_#t~mem11.base|)), 10278#(= 1 (select |#valid| main_~p~0.base))] [2018-02-02 20:21:18,616 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:18,616 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-02 20:21:18,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-02 20:21:18,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2018-02-02 20:21:18,616 INFO L87 Difference]: Start difference. First operand 159 states and 170 transitions. Second operand 31 states. [2018-02-02 20:21:19,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:19,307 INFO L93 Difference]: Finished difference Result 161 states and 172 transitions. [2018-02-02 20:21:19,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:21:19,308 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 69 [2018-02-02 20:21:19,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:19,308 INFO L225 Difference]: With dead ends: 161 [2018-02-02 20:21:19,308 INFO L226 Difference]: Without dead ends: 161 [2018-02-02 20:21:19,309 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=471, Invalid=2285, Unknown=0, NotChecked=0, Total=2756 [2018-02-02 20:21:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-02-02 20:21:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2018-02-02 20:21:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-02-02 20:21:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 172 transitions. [2018-02-02 20:21:19,310 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 172 transitions. Word has length 69 [2018-02-02 20:21:19,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:19,310 INFO L432 AbstractCegarLoop]: Abstraction has 160 states and 172 transitions. [2018-02-02 20:21:19,310 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-02 20:21:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 172 transitions. [2018-02-02 20:21:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-02-02 20:21:19,311 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:19,311 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:19,311 INFO L371 AbstractCegarLoop]: === Iteration 36 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:19,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1205982594, now seen corresponding path program 6 times [2018-02-02 20:21:19,311 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:19,323 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:19,948 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:19,948 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-02 20:21:19,948 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:19,949 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 20:21:19,949 INFO L182 omatonBuilderFactory]: Interpolants [10644#true, 10645#false, 10646#(= 0 |main_#t~malloc0.offset|), 10647#(= 0 main_~a~0.offset), 10648#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 10649#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 10650#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 10651#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base)), 10652#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 10653#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 10654#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 10655#(and (<= 0 main_~p~0.offset) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 10656#(and (<= 0 main_~p~0.offset) (= (select |#length| main_~p~0.base) 8) (not (= main_~a~0.base |main_#t~malloc4.base|)) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 10657#(and (<= 0 main_~p~0.offset) (= (select |#length| main_~p~0.base) 8) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 10658#(and (= (select |#length| main_~p~0.base) 8) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1)), 10659#(and (= (select |#valid| main_~a~0.base) 1) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 10660#(and (= (select |#valid| main_~a~0.base) 1) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~p~0.base main_~a~0.base))), 10661#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 10662#(and (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 10663#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 10664#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 10665#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 10666#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 10667#(and (= 0 main_~a~0.offset) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 10668#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 10669#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|))), 10670#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 10671#(and (= 0 main_~a~0.offset) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)))), 10672#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 10673#(and (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 10674#(and (<= 8 (select |#length| |main_#t~mem11.base|)) (= 0 |main_#t~mem11.offset|)), 10675#(and (= main_~p~0.offset 0) (<= 8 (select |#length| main_~p~0.base)))] [2018-02-02 20:21:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:19,949 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-02 20:21:19,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-02 20:21:19,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=841, Unknown=0, NotChecked=0, Total=992 [2018-02-02 20:21:19,949 INFO L87 Difference]: Start difference. First operand 160 states and 172 transitions. Second operand 32 states. [2018-02-02 20:21:20,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:20,925 INFO L93 Difference]: Finished difference Result 163 states and 174 transitions. [2018-02-02 20:21:20,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-02 20:21:20,925 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 69 [2018-02-02 20:21:20,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:20,925 INFO L225 Difference]: With dead ends: 163 [2018-02-02 20:21:20,925 INFO L226 Difference]: Without dead ends: 163 [2018-02-02 20:21:20,926 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=504, Invalid=2358, Unknown=0, NotChecked=0, Total=2862 [2018-02-02 20:21:20,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-02-02 20:21:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 159. [2018-02-02 20:21:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-02-02 20:21:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 170 transitions. [2018-02-02 20:21:20,927 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 170 transitions. Word has length 69 [2018-02-02 20:21:20,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:20,927 INFO L432 AbstractCegarLoop]: Abstraction has 159 states and 170 transitions. [2018-02-02 20:21:20,927 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-02 20:21:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 170 transitions. [2018-02-02 20:21:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-02-02 20:21:20,928 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:20,928 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:20,928 INFO L371 AbstractCegarLoop]: === Iteration 37 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:20,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1916713364, now seen corresponding path program 9 times [2018-02-02 20:21:20,928 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:20,942 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:22,364 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:22,364 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:22,364 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-02-02 20:21:22,364 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:22,364 INFO 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 20:21:22,365 INFO L182 omatonBuilderFactory]: Interpolants [11072#(and (<= 0 main_~p~0.offset) (or (not (= main_~p~0.offset 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))))) (or (<= main_~p~0.offset 0) (<= (select |#length| main_~p~0.base) 8))), 11073#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 8 (select |#length| |main_#t~mem11.base|))), 11074#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= (+ main_~p~0.offset 1) 0) (and (<= 1 main_~p~0.offset) (= 8 (select |#length| main_~p~0.base)))), 11075#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (and (<= 1 main_~p~0.offset) (= 8 (select |#length| main_~p~0.base)))), 11076#(= 1 (select |#valid| |main_#t~mem11.base|)), 11077#(= 1 (select |#valid| main_~p~0.base)), 11042#true, 11043#false, 11044#(= |main_#t~malloc0.offset| 0), 11045#(= main_~a~0.offset 0), 11046#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11047#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11048#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|)) (= main_~i~0 0)), 11049#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 11050#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11051#(and (= 1 (select |#valid| main_~a~0.base)) (= main_~a~0.offset 0) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 11052#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (or (<= (+ main_~p~0.offset 1) 0) (and (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 11053#(and (<= 1 main_~i~0) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 11054#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (<= (select |#length| main_~p~0.base) 8) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 11055#(and (= 8 (select |#length| main_~t~0.base)) (<= 1 main_~i~0) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (<= (select |#length| main_~p~0.base) 8) (not (= main_~a~0.base main_~t~0.base)) (= (select |#valid| main_~t~0.base) 1)), 11056#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (<= (select |#length| main_~p~0.base) 8)), 11057#(and (<= 1 main_~i~0) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| main_~a~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 11058#(and (<= 2 main_~i~0) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= main_~a~0.offset 0) (or (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= (select |#valid| main_~p~0.base) 1) (= 8 (select |#length| main_~p~0.base))) (<= (+ main_~p~0.offset 1) 0)) (not (= main_~p~0.base main_~a~0.base))), 11059#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 11060#(and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~malloc4.offset|) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| |main_#t~malloc4.base|)) (= main_~p~0.offset 0) (= 8 (select |#length| main_~p~0.base)) (not (= main_~p~0.base main_~a~0.base)) (not (= main_~a~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (not (= main_~p~0.base |main_#t~malloc4.base|))), 11061#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~a~0.offset main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (= 8 (select |#length| main_~p~0.base)) (<= (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 11062#(and (<= 2 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 8 (select |#length| main_~p~0.base))), 11063#(and (<= 2 main_~i~0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= main_~a~0.offset |main_#t~mem6.offset|) (not (= main_~a~0.base |main_#t~mem6.base|))), 11064#(and (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8) (not (= main_~p~0.base main_~a~0.base)))) (= 0 main_~a~0.offset)), 11065#(and (= 0 main_~a~0.offset) (or (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset)) (and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (<= (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) 8) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))))))), 11066#(and (= 0 main_~a~0.offset) (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 8)))), 11067#(and (= main_~p~0.offset 0) (or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 8)))), 11068#(and (= main_~p~0.offset 0) (or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 8)) (not (= |main_#t~mem10| main_~i~0)))), 11069#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 8)), 11070#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (<= (select |#length| |main_#t~mem11.base|) 8)), 11071#(and (or (not (= main_~p~0.offset 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))))) (or (<= main_~p~0.offset 0) (<= (select |#length| main_~p~0.base) 8)))] [2018-02-02 20:21:22,365 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:22,365 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-02-02 20:21:22,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-02-02 20:21:22,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1147, Unknown=0, NotChecked=0, Total=1260 [2018-02-02 20:21:22,366 INFO L87 Difference]: Start difference. First operand 159 states and 170 transitions. Second operand 36 states. [2018-02-02 20:21:24,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:24,720 INFO L93 Difference]: Finished difference Result 191 states and 204 transitions. [2018-02-02 20:21:24,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-02 20:21:24,720 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 70 [2018-02-02 20:21:24,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:24,721 INFO L225 Difference]: With dead ends: 191 [2018-02-02 20:21:24,721 INFO L226 Difference]: Without dead ends: 191 [2018-02-02 20:21:24,721 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=581, Invalid=4531, Unknown=0, NotChecked=0, Total=5112 [2018-02-02 20:21:24,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-02-02 20:21:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 166. [2018-02-02 20:21:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-02-02 20:21:24,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 179 transitions. [2018-02-02 20:21:24,724 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 179 transitions. Word has length 70 [2018-02-02 20:21:24,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:24,724 INFO L432 AbstractCegarLoop]: Abstraction has 166 states and 179 transitions. [2018-02-02 20:21:24,724 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-02-02 20:21:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 179 transitions. [2018-02-02 20:21:24,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-02-02 20:21:24,725 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:24,725 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:24,725 INFO L371 AbstractCegarLoop]: === Iteration 38 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:24,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1916713365, now seen corresponding path program 7 times [2018-02-02 20:21:24,726 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:24,741 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:26,190 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:26,190 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-02-02 20:21:26,190 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:26,190 INFO L182 omatonBuilderFactory]: Interpolants [11520#(and (= 8 (select |#length| main_~t~0.base)) (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base)) (= (select |#valid| main_~t~0.base) 1)), 11521#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 11522#(and (<= 1 main_~i~0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 11523#(or (<= (+ main_~p~0.offset 1) 0) (and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base)))), 11524#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 11525#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 11526#(and (= 8 (select |#length| main_~t~0.base)) (<= 2 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~a~0.offset main_~t~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| main_~p~0.base))), 11527#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 8 (select |#length| main_~p~0.base))), 11528#(and (<= 2 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= main_~a~0.offset |main_#t~mem6.offset|) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))))), 11529#(or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))))), 11530#(or (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))) (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset))), 11531#(or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))))), 11532#(or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))))), 11533#(or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (not (= |main_#t~mem10| main_~i~0))), 11534#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))), 11535#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| |main_#t~mem11.base|))), 11536#(and (= (select |#length| main_~p~0.base) 8) (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset))), 11537#(and (= (select |#length| main_~p~0.base) 8) (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= 1 main_~p~0.offset))), 11538#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 8 (select |#length| |main_#t~mem11.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 11539#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (<= (+ main_~p~0.offset 1) 0) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))), 11540#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))), 11541#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| |main_#t~mem11.base|))), 11542#(and (= (select |#length| main_~p~0.base) 8) (= main_~p~0.offset 0)), 11507#true, 11508#false, 11509#(= |main_#t~malloc0.offset| 0), 11510#(= main_~a~0.offset 0), 11511#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11512#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11513#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|)) (= main_~i~0 0)), 11514#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 11515#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11516#(and (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 11517#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (or (<= (+ main_~p~0.offset 1) 0) (= main_~p~0.offset 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 11518#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 11519#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|)))] [2018-02-02 20:21:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:26,191 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-02-02 20:21:26,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-02-02 20:21:26,191 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1149, Unknown=0, NotChecked=0, Total=1260 [2018-02-02 20:21:26,191 INFO L87 Difference]: Start difference. First operand 166 states and 179 transitions. Second operand 36 states. [2018-02-02 20:21:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:28,824 INFO L93 Difference]: Finished difference Result 208 states and 221 transitions. [2018-02-02 20:21:28,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-02 20:21:28,824 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 70 [2018-02-02 20:21:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:28,825 INFO L225 Difference]: With dead ends: 208 [2018-02-02 20:21:28,825 INFO L226 Difference]: Without dead ends: 208 [2018-02-02 20:21:28,825 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1200 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=537, Invalid=4575, Unknown=0, NotChecked=0, Total=5112 [2018-02-02 20:21:28,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-02-02 20:21:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 165. [2018-02-02 20:21:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-02-02 20:21:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 177 transitions. [2018-02-02 20:21:28,828 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 177 transitions. Word has length 70 [2018-02-02 20:21:28,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:28,828 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 177 transitions. [2018-02-02 20:21:28,828 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-02-02 20:21:28,828 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 177 transitions. [2018-02-02 20:21:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-02 20:21:28,828 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:28,829 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:28,829 INFO L371 AbstractCegarLoop]: === Iteration 39 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:28,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1608060491, now seen corresponding path program 7 times [2018-02-02 20:21:28,829 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:28,842 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:29,528 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:29,528 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-02-02 20:21:29,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:29,529 INFO 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 20:21:29,529 INFO L182 omatonBuilderFactory]: Interpolants [11988#true, 11989#false, 11990#(and (not (= 0 |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 11991#(and (= main_~a~0.offset 0) (not (= 0 main_~a~0.base))), 11992#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11993#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11994#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11995#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11996#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 11997#(and (= (select |#valid| main_~a~0.base) 1) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 11998#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 11999#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 12000#(and (<= 1 main_~i~0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (not (= main_~a~0.base main_~t~0.base))), 12001#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base))), 12002#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base |main_#t~mem6.base|))), 12003#(and (<= 2 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 12004#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base)) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~malloc4.offset|)) (not (= main_~a~0.base |main_#t~malloc4.base|)))), 12005#(and (= 0 main_~a~0.offset) (or (and (<= 2 main_~i~0) (= main_~a~0.offset main_~t~0.offset)) (not (= main_~a~0.base main_~t~0.base))) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))))), 12006#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (or (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (and (<= 2 main_~i~0) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))))), 12007#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~mem6.offset|)) (not (= main_~a~0.base |main_#t~mem6.base|)))), 12008#(and (= 0 main_~a~0.offset) (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base)))) (not (= 0 main_~a~0.base))), 12009#(and (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 12010#(and (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))))), 12011#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base main_~a~0.base))) (not (= 0 main_~a~0.base))), 12012#(and (or (and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base main_~a~0.base)) (not (= |main_#t~mem10| main_~i~0))) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base))), 12013#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 12014#(and (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem11.base|) (= 0 main_~a~0.offset) (not (= main_~a~0.base |main_#t~mem11.base|)) (not (= 0 main_~a~0.base))), 12015#(and (not (= main_~a~0.base main_~p~0.base)) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 12016#(and (not (= main_~a~0.base main_~p~0.base)) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 12017#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base))), 12018#(and (not (= 0 main_~p~0.base)) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 12019#(and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) |main_#t~mem13.base|))), 12020#(and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) main_~t~0.base))), 12021#(= 1 (select |#valid| main_~t~0.base)), 12022#(= (select |#valid| main_~p~0.base) 1)] [2018-02-02 20:21:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:29,529 INFO L409 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-02-02 20:21:29,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-02-02 20:21:29,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1030, Unknown=0, NotChecked=0, Total=1190 [2018-02-02 20:21:29,529 INFO L87 Difference]: Start difference. First operand 165 states and 177 transitions. Second operand 35 states. [2018-02-02 20:21:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:30,788 INFO L93 Difference]: Finished difference Result 175 states and 187 transitions. [2018-02-02 20:21:30,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-02 20:21:30,788 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 73 [2018-02-02 20:21:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:30,788 INFO L225 Difference]: With dead ends: 175 [2018-02-02 20:21:30,789 INFO L226 Difference]: Without dead ends: 175 [2018-02-02 20:21:30,789 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=712, Invalid=3320, Unknown=0, NotChecked=0, Total=4032 [2018-02-02 20:21:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-02-02 20:21:30,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 166. [2018-02-02 20:21:30,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-02-02 20:21:30,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 179 transitions. [2018-02-02 20:21:30,792 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 179 transitions. Word has length 73 [2018-02-02 20:21:30,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:30,792 INFO L432 AbstractCegarLoop]: Abstraction has 166 states and 179 transitions. [2018-02-02 20:21:30,792 INFO L433 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-02-02 20:21:30,792 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 179 transitions. [2018-02-02 20:21:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-02 20:21:30,792 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:30,793 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:30,793 INFO L371 AbstractCegarLoop]: === Iteration 40 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:30,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1608060490, now seen corresponding path program 4 times [2018-02-02 20:21:30,793 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:30,804 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:31,596 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:31,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-02-02 20:21:31,597 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:31,597 INFO 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 20:21:31,597 INFO L182 omatonBuilderFactory]: Interpolants [12422#true, 12423#false, 12424#(= |main_#t~malloc0.offset| 0), 12425#(= main_~a~0.offset 0), 12426#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 12427#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 12428#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|)) (= main_~i~0 0)), 12429#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 12430#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 12431#(and (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 12432#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 12433#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 12434#(and (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 12435#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 12436#(and (<= 1 main_~i~0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~a~0.base |main_#t~mem6.base|))), 12437#(and (<= 2 main_~i~0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~a~0.base))), 12438#(and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~malloc4.offset|) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 12439#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= main_~a~0.offset main_~t~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))))), 12440#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 12441#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset |main_#t~mem6.offset|)), 12442#(and (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)))) (= 0 main_~a~0.offset)), 12443#(and (= 0 main_~a~0.offset) (or (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset)) (and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))))), 12444#(and (= 0 main_~a~0.offset) (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))))), 12445#(and (or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base))) (= 0 main_~a~0.offset)), 12446#(and (= 0 main_~a~0.offset) (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)) (not (= |main_#t~mem10| main_~i~0)))), 12447#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 12448#(and (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem11.base|))), 12449#(and (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 12450#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))), 12451#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))), 12452#(and (= 8 (select |#length| |main_#t~mem13.base|)) (= 0 |main_#t~mem13.offset|) (= main_~p~0.offset 0)), 12453#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0)), 12454#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset)), 12455#(and (= main_~p~0.offset 0) (= 8 (select |#length| main_~p~0.base)))] [2018-02-02 20:21:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:31,597 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-02 20:21:31,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-02 20:21:31,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=973, Unknown=0, NotChecked=0, Total=1122 [2018-02-02 20:21:31,598 INFO L87 Difference]: Start difference. First operand 166 states and 179 transitions. Second operand 34 states. [2018-02-02 20:21:33,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:33,044 INFO L93 Difference]: Finished difference Result 210 states and 224 transitions. [2018-02-02 20:21:33,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-02 20:21:33,045 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 73 [2018-02-02 20:21:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:33,045 INFO L225 Difference]: With dead ends: 210 [2018-02-02 20:21:33,045 INFO L226 Difference]: Without dead ends: 210 [2018-02-02 20:21:33,046 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=665, Invalid=3891, Unknown=0, NotChecked=0, Total=4556 [2018-02-02 20:21:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-02-02 20:21:33,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 176. [2018-02-02 20:21:33,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-02-02 20:21:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 193 transitions. [2018-02-02 20:21:33,047 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 193 transitions. Word has length 73 [2018-02-02 20:21:33,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:33,048 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 193 transitions. [2018-02-02 20:21:33,048 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-02 20:21:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 193 transitions. [2018-02-02 20:21:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-02-02 20:21:33,048 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:33,048 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:33,048 INFO L371 AbstractCegarLoop]: === Iteration 41 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:33,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1388057304, now seen corresponding path program 8 times [2018-02-02 20:21:33,049 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:33,058 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:33,869 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:33,869 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-02-02 20:21:33,869 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:33,870 INFO 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 20:21:33,870 INFO L182 omatonBuilderFactory]: Interpolants [12928#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))), 12929#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (= main_~p~0.base main_~a~0.base)), 12930#(and (= 0 main_~a~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)) |main_#t~mem11.offset|) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 12931#(and (= 0 main_~a~0.offset) (or (and (= main_~p~0.offset (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))))) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))))), 12932#(and (= 0 main_~a~0.offset) (or (not (= (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)) 0)) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))))), 12933#(and (= 0 main_~a~0.offset) (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))))), 12934#(and (= main_~p~0.offset 0) (or (not (= (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)) 0)) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))))), 12935#(and (or (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4))) (+ 0 4)))) (not (= 0 |main_#t~mem13.offset|))) (= main_~p~0.offset 0)), 12936#(and (or (not (= 0 main_~t~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))) (+ 0 4))))) (= main_~p~0.offset 0)), 12937#(or (not (= 0 main_~t~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))) (+ 0 4))))), 12938#(or (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 12939#(or (and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem13.base|) (+ 0 4)))) (not (= main_~p~0.offset 0))), 12940#(or (not (= main_~p~0.offset 0)) (and (= 0 (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~t~0.base) (+ 0 4))))), 12941#(and (= 0 (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~t~0.base) (+ 0 4)))), 12942#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 12943#(or (and (= 0 |main_#t~mem13.offset|) (= 0 |main_#t~mem13.base|)) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 12944#(or (and (= 0 main_~t~0.offset) (= 0 main_~t~0.base)) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 12945#(and (= 0 main_~t~0.offset) (= 0 main_~t~0.base)), 12946#(and (= main_~p~0.base 0) (= main_~p~0.offset 0)), 12910#true, 12911#false, 12912#(= 0 |main_#t~malloc0.offset|), 12913#(= 0 main_~a~0.offset), 12914#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 12915#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 12916#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 12917#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 12918#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base main_~a~0.base)), 12919#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| main_~a~0.base)) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 12920#(and (= 0 main_~a~0.offset) (or (<= (+ main_~p~0.offset 1) 0) (and (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))))), 12921#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 12922#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|)), 12923#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 12924#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 12925#(and (= 0 main_~a~0.offset) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (not (= main_~a~0.base |main_#t~mem6.base|))), 12926#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (or (and (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0)) (<= (+ main_~p~0.offset 1) 0)) (not (= main_~p~0.base main_~a~0.base))), 12927#(and (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0))] [2018-02-02 20:21:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:33,870 INFO L409 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-02-02 20:21:33,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-02-02 20:21:33,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1221, Unknown=0, NotChecked=0, Total=1332 [2018-02-02 20:21:33,870 INFO L87 Difference]: Start difference. First operand 176 states and 193 transitions. Second operand 37 states. [2018-02-02 20:21:35,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:35,331 INFO L93 Difference]: Finished difference Result 193 states and 209 transitions. [2018-02-02 20:21:35,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-02-02 20:21:35,331 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 74 [2018-02-02 20:21:35,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:35,332 INFO L225 Difference]: With dead ends: 193 [2018-02-02 20:21:35,332 INFO L226 Difference]: Without dead ends: 193 [2018-02-02 20:21:35,332 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=510, Invalid=4602, Unknown=0, NotChecked=0, Total=5112 [2018-02-02 20:21:35,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-02-02 20:21:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2018-02-02 20:21:35,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-02-02 20:21:35,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 207 transitions. [2018-02-02 20:21:35,334 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 207 transitions. Word has length 74 [2018-02-02 20:21:35,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:35,334 INFO L432 AbstractCegarLoop]: Abstraction has 190 states and 207 transitions. [2018-02-02 20:21:35,334 INFO L433 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-02-02 20:21:35,334 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 207 transitions. [2018-02-02 20:21:35,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-02-02 20:21:35,334 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:35,334 INFO L351 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:35,334 INFO L371 AbstractCegarLoop]: === Iteration 42 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:35,335 INFO L82 PathProgramCache]: Analyzing trace with hash 80101960, now seen corresponding path program 5 times [2018-02-02 20:21:35,335 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:35,343 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:37,091 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 20:21:37,091 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:37,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-02-02 20:21:37,091 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:37,091 INFO 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 20:21:37,092 INFO L182 omatonBuilderFactory]: Interpolants [13400#true, 13401#false, 13402#(= |#valid| |old(#valid)|), 13403#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 13404#(and (= (store |#valid| main_~a~0.base 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base))), 13405#(and (= (store |#valid| main_~a~0.base 0) |old(#valid)|) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base)), 13406#(and (= (store |#valid| main_~a~0.base 0) |old(#valid)|) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 13407#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= (store (store |#valid| main_~a~0.base 0) |main_#t~malloc4.base| 0) |old(#valid)|) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 13408#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~t~0.base)) (= (store (store |#valid| main_~a~0.base 0) main_~t~0.base 0) |old(#valid)|) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 13409#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= |old(#valid)| (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0)) (not (= 0 main_~a~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 13410#(and (= (select |#valid| main_~a~0.base) 1) (= (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 13411#(and (= 0 main_~a~0.offset) (or (and (= (select |#valid| main_~a~0.base) 1) (= (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))) (<= (+ main_~p~0.offset 1) 0))), 13412#(and (= (select |#valid| main_~a~0.base) 1) (= (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 13413#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= (store (store (store |#valid| main_~a~0.base 0) |main_#t~malloc4.base| 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 13414#(and (= 0 main_~a~0.offset) (= (store (store (store |#valid| main_~a~0.base 0) main_~t~0.base 0) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) 4) 0) |old(#valid)|) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base main_~t~0.base))), 13415#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (store (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|)), 13416#(and (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= (store (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) 4)) 4) 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (not (= main_~a~0.base |main_#t~mem6.base|))), 13417#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base)) (= (store (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) 4)) 4) 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (not (= main_~p~0.base main_~a~0.base))), 13418#(and (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= (store (store (store |#valid| main_~a~0.base 0) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) 4)) 4) 0) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) 4) 0) |old(#valid)|) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))))), 13419#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base)) (= (store (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) 4)) 4) 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|)), 13420#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.base main_~a~0.base) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= (store (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 4) 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) 4) 0) |old(#valid)|)), 13421#(and (= (store (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) 4) 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))))), 13422#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (store (store (store |#valid| main_~a~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) 4) 0) (select (select |#memory_$Pointer$.base| main_~a~0.base) 4) 0) |old(#valid)|)), 13423#(and (= |old(#valid)| (store (store (store |#valid| main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 4) 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0)) (= main_~p~0.offset 0) (not (= 0 main_~p~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))), 13424#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)))) (= main_~p~0.offset 0) (not (= main_~p~0.base 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)))) (= |old(#valid)| (store (store (store |#valid| main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)) (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) 4) 0) |main_#t~mem13.base| 0))), 13425#(and (= main_~t~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= |old(#valid)| (store (store (store |#valid| main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)) (select (select |#memory_$Pointer$.base| main_~t~0.base) 4) 0) main_~t~0.base 0)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)))) (= main_~p~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)))) (not (= main_~p~0.base 0))), 13426#(and (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~t~0.base) 4) 0) main_~t~0.base 0) |old(#valid)|) (not (= main_~t~0.base (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))), 13427#(or (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= |old(#valid)| (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0) main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)))) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 13428#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= |old(#valid)| (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0) main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base))) (not (= main_~p~0.base 0)))), 13429#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base |main_#t~mem13.base|)) (= (store (store |#valid| |main_#t~mem13.base| 0) main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)) |old(#valid)|) (not (= main_~p~0.base 0)))), 13430#(or (and (not (= main_~p~0.base 0)) (not (= main_~p~0.base main_~t~0.base)) (= (store (store |#valid| main_~t~0.base 0) main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)) |old(#valid)|)) (not (= main_~p~0.offset 0))), 13431#(= |old(#valid)| (store |#valid| main_~t~0.base 0)), 13432#(= (store |#valid| main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)) |old(#valid)|), 13433#(and (or (not (= main_~p~0.offset 0)) (not (= main_~p~0.base 0))) (= (store |#valid| main_~p~0.base (select (store |#valid| main_~p~0.base 0) main_~p~0.base)) |old(#valid)|))] [2018-02-02 20:21:37,092 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 20:21:37,092 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-02 20:21:37,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-02 20:21:37,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1033, Unknown=0, NotChecked=0, Total=1122 [2018-02-02 20:21:37,092 INFO L87 Difference]: Start difference. First operand 190 states and 207 transitions. Second operand 34 states. [2018-02-02 20:21:38,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:38,683 INFO L93 Difference]: Finished difference Result 192 states and 208 transitions. [2018-02-02 20:21:38,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-02 20:21:38,719 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 75 [2018-02-02 20:21:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:38,720 INFO L225 Difference]: With dead ends: 192 [2018-02-02 20:21:38,720 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 20:21:38,720 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 8 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=263, Invalid=3043, Unknown=0, NotChecked=0, Total=3306 [2018-02-02 20:21:38,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 20:21:38,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-02-02 20:21:38,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-02-02 20:21:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 161 transitions. [2018-02-02 20:21:38,722 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 161 transitions. Word has length 75 [2018-02-02 20:21:38,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:38,722 INFO L432 AbstractCegarLoop]: Abstraction has 146 states and 161 transitions. [2018-02-02 20:21:38,722 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-02 20:21:38,722 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 161 transitions. [2018-02-02 20:21:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-02-02 20:21:38,722 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:38,722 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:38,722 INFO L371 AbstractCegarLoop]: === Iteration 43 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:38,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1824970453, now seen corresponding path program 10 times [2018-02-02 20:21:38,723 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:38,737 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:39,516 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:39,516 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-02-02 20:21:39,516 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:39,516 INFO 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 20:21:39,516 INFO L182 omatonBuilderFactory]: Interpolants [13824#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 13825#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 13826#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 13827#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 13828#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 13829#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| |main_#t~mem6.base|)) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 13830#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (or (<= (+ main_~p~0.offset 1) 0) (= main_~p~0.offset 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 13831#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 13832#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 13833#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 13834#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (= 8 (select |#length| main_~p~0.base))), 13835#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|) (not (= main_~a~0.base |main_#t~mem6.base|))), 13836#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~p~0.base main_~a~0.base))), 13837#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 13838#(and (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) 0)) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (not (= main_~a~0.base main_~t~0.base))), 13839#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 1 (select |#valid| main_~p~0.base))), 13840#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 13841#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 13842#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 13843#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)))) (not (= main_~a~0.base main_~t~0.base))), 13844#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))))), 13845#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 13846#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base))), 13847#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))))), 13848#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))))), 13849#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0)), 13850#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 8 (select |#length| |main_#t~mem11.base|))), 13851#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= (+ main_~p~0.offset 1) 0)), 13852#(or (and (= (select |#length| main_~p~0.base) 8) (<= 1 main_~p~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 13853#(= 1 (select |#valid| |main_#t~mem11.base|)), 13854#(= 1 (select |#valid| main_~p~0.base)), 13820#true, 13821#false, 13822#(= 0 |main_#t~malloc0.offset|), 13823#(= 0 main_~a~0.offset)] [2018-02-02 20:21:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:39,516 INFO L409 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-02-02 20:21:39,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-02-02 20:21:39,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1066, Unknown=0, NotChecked=0, Total=1190 [2018-02-02 20:21:39,517 INFO L87 Difference]: Start difference. First operand 146 states and 161 transitions. Second operand 35 states. [2018-02-02 20:21:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:40,971 INFO L93 Difference]: Finished difference Result 153 states and 169 transitions. [2018-02-02 20:21:40,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-02 20:21:40,972 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 75 [2018-02-02 20:21:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:40,972 INFO L225 Difference]: With dead ends: 153 [2018-02-02 20:21:40,972 INFO L226 Difference]: Without dead ends: 153 [2018-02-02 20:21:40,972 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=524, Invalid=3508, Unknown=0, NotChecked=0, Total=4032 [2018-02-02 20:21:40,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-02-02 20:21:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2018-02-02 20:21:40,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-02 20:21:40,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 167 transitions. [2018-02-02 20:21:40,974 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 167 transitions. Word has length 75 [2018-02-02 20:21:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:40,974 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 167 transitions. [2018-02-02 20:21:40,974 INFO L433 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-02-02 20:21:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 167 transitions. [2018-02-02 20:21:40,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-02-02 20:21:40,975 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:40,975 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:40,975 INFO L371 AbstractCegarLoop]: === Iteration 44 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:40,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1824970452, now seen corresponding path program 8 times [2018-02-02 20:21:40,976 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:40,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:41,977 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:41,977 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-02-02 20:21:41,977 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:41,977 INFO 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 20:21:41,977 INFO L182 omatonBuilderFactory]: Interpolants [14216#true, 14217#false, 14218#(= 0 |main_#t~malloc0.offset|), 14219#(= 0 main_~a~0.offset), 14220#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 14221#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 14222#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 14223#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 14224#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 14225#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 14226#(or (and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))) (<= (+ main_~p~0.offset 1) 0)), 14227#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 14228#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|)), 14229#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= main_~a~0.base main_~t~0.base))), 14230#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1)), 14231#(and (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|) (not (= main_~a~0.base |main_#t~mem6.base|))), 14232#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~p~0.base main_~a~0.base))), 14233#(and (<= 0 main_~p~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= (select |#valid| main_~a~0.base) 1) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~p~0.base main_~a~0.base))), 14234#(and (<= 0 main_~p~0.offset) (not (= main_~a~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 14235#(and (<= 0 main_~p~0.offset) (not (= (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) 0)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 14236#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= (select |#valid| main_~p~0.base) 0)) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= 8 (select |#length| main_~p~0.base))), 14237#(and (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 14238#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= (select |#valid| main_~a~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 0)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 14239#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 14240#(and (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 14241#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 14242#(and (= 0 main_~a~0.offset) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 14243#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 14244#(and (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (<= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))))), 14245#(and (= 0 main_~a~0.offset) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 14246#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 14247#(and (= 0 |main_#t~mem11.offset|) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 14248#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))) (<= (+ main_~p~0.offset 1) 0)), 14249#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 14250#(and (<= 8 (select |#length| |main_#t~mem11.base|)) (= 0 |main_#t~mem11.offset|)), 14251#(and (= main_~p~0.offset 0) (<= 8 (select |#length| main_~p~0.base)))] [2018-02-02 20:21:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:41,978 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-02-02 20:21:41,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-02-02 20:21:41,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2018-02-02 20:21:41,978 INFO L87 Difference]: Start difference. First operand 150 states and 167 transitions. Second operand 36 states. [2018-02-02 20:21:43,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:43,769 INFO L93 Difference]: Finished difference Result 155 states and 171 transitions. [2018-02-02 20:21:43,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-02 20:21:43,769 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 75 [2018-02-02 20:21:43,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:43,770 INFO L225 Difference]: With dead ends: 155 [2018-02-02 20:21:43,770 INFO L226 Difference]: Without dead ends: 155 [2018-02-02 20:21:43,770 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=509, Invalid=4047, Unknown=0, NotChecked=0, Total=4556 [2018-02-02 20:21:43,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-02-02 20:21:43,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2018-02-02 20:21:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-02-02 20:21:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 168 transitions. [2018-02-02 20:21:43,771 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 168 transitions. Word has length 75 [2018-02-02 20:21:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:43,772 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 168 transitions. [2018-02-02 20:21:43,772 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-02-02 20:21:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 168 transitions. [2018-02-02 20:21:43,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-02-02 20:21:43,772 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:43,772 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:43,772 INFO L371 AbstractCegarLoop]: === Iteration 45 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:43,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1860056318, now seen corresponding path program 11 times [2018-02-02 20:21:43,772 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:43,790 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 4 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:45,483 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:45,483 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-02-02 20:21:45,483 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:45,483 INFO 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 20:21:45,483 INFO L182 omatonBuilderFactory]: Interpolants [14656#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 14657#(and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (= 8 (select |#length| |main_#t~mem11.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 14658#(or (and (or (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 1 main_~p~0.offset)) (= 8 (select |#length| main_~p~0.base)) (or (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 1 main_~p~0.offset))) (<= (+ main_~p~0.offset 1) 0)), 14659#(and (or (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 1 main_~p~0.offset)) (= 8 (select |#length| main_~p~0.base)) (or (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (<= 1 main_~p~0.offset))), 14660#(and (= 0 |main_#t~mem11.offset|) (= 0 |main_#t~mem11.base|)), 14661#(and (= main_~p~0.base 0) (= main_~p~0.offset 0)), 14623#true, 14624#false, 14625#(= |main_#t~malloc0.offset| 0), 14626#(= main_~a~0.offset 0), 14627#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 14628#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 14629#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= main_~i~0 0)), 14630#(and (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 14631#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 14632#(and (= (select |#valid| main_~a~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 14633#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (<= main_~i~0 1) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~a~0.base)) (or (<= (+ main_~p~0.offset 1) 0) (and (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1)))), 14634#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (<= main_~i~0 1) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 14635#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (<= main_~i~0 1) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|)), 14636#(and (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 0 main_~t~0.offset) (<= main_~i~0 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~t~0.base) 1) (not (= main_~a~0.base main_~t~0.base))), 14637#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (<= main_~i~0 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1)), 14638#(and (<= 1 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (<= main_~i~0 1) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 14639#(and (<= 2 main_~i~0) (or (<= (+ main_~p~0.offset 1) 0) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (= (select |#valid| main_~p~0.base) 1))) (<= main_~i~0 2) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~a~0.base))), 14640#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (<= main_~i~0 2) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 14641#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (or (not (= main_~a~0.base |main_#t~malloc4.base|)) (and (<= 2 main_~i~0) (<= main_~i~0 2))) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 14642#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (or (and (<= 2 main_~i~0) (<= main_~i~0 2)) (not (= main_~a~0.base main_~t~0.base)))), 14643#(and (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (or (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (and (<= 2 main_~i~0) (<= main_~i~0 2)))), 14644#(and (or (and (<= 2 main_~i~0) (<= main_~i~0 2)) (not (= main_~a~0.base |main_#t~mem6.base|))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 0 |main_#t~mem6.offset|) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))))), 14645#(and (or (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (or (<= (+ main_~p~0.offset 1) 0) (and (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))) (and (<= main_~i~0 3) (= main_~p~0.offset main_~a~0.offset) (<= 3 main_~i~0) (= main_~p~0.base main_~a~0.base))) (= 0 main_~a~0.offset)), 14646#(and (or (and (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 3) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))))) (= 0 main_~a~0.offset)), 14647#(and (= 0 main_~a~0.offset) (or (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (+ 0 4))))) (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 3))), 14648#(and (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 3)) (= main_~p~0.offset 0) (= main_~i~0 0)), 14649#(and (or (= |main_#t~mem10| 3) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))) (= main_~p~0.offset 0) (= main_~i~0 0)), 14650#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= main_~i~0 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 14651#(and (= 0 |main_#t~mem11.offset|) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4))) (= main_~i~0 0)), 14652#(or (<= (+ main_~p~0.offset 1) 0) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))))), 14653#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (+ 0 4)))), 14654#(and (= 0 |main_#t~mem11.offset|) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))) (+ 0 4)))), 14655#(or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (<= (+ main_~p~0.offset 1) 0))] [2018-02-02 20:21:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 4 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:45,484 INFO L409 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-02-02 20:21:45,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-02-02 20:21:45,484 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1374, Unknown=0, NotChecked=0, Total=1482 [2018-02-02 20:21:45,484 INFO L87 Difference]: Start difference. First operand 152 states and 168 transitions. Second operand 39 states. [2018-02-02 20:21:48,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:48,109 INFO L93 Difference]: Finished difference Result 170 states and 182 transitions. [2018-02-02 20:21:48,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-02 20:21:48,109 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 76 [2018-02-02 20:21:48,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:48,110 INFO L225 Difference]: With dead ends: 170 [2018-02-02 20:21:48,110 INFO L226 Difference]: Without dead ends: 170 [2018-02-02 20:21:48,110 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1305 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=496, Invalid=5054, Unknown=0, NotChecked=0, Total=5550 [2018-02-02 20:21:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-02-02 20:21:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 149. [2018-02-02 20:21:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-02 20:21:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 161 transitions. [2018-02-02 20:21:48,111 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 161 transitions. Word has length 76 [2018-02-02 20:21:48,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:48,111 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 161 transitions. [2018-02-02 20:21:48,111 INFO L433 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-02-02 20:21:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 161 transitions. [2018-02-02 20:21:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-02 20:21:48,112 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:48,112 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:48,112 INFO L371 AbstractCegarLoop]: === Iteration 46 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:48,112 INFO L82 PathProgramCache]: Analyzing trace with hash 137204329, now seen corresponding path program 9 times [2018-02-02 20:21:48,112 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:48,120 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:49,568 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:49,569 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:49,569 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-02-02 20:21:49,569 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:49,569 INFO 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 20:21:49,569 INFO L182 omatonBuilderFactory]: Interpolants [15053#true, 15054#false, 15055#(and (not (= 0 |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 15056#(and (= main_~a~0.offset 0) (not (= 0 main_~a~0.base))), 15057#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 15058#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 15059#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= main_~i~0 0)), 15060#(and (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= 0 main_~a~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 15061#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 15062#(and (= (select |#valid| main_~a~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 15063#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (or (and (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (<= (+ main_~p~0.offset 1) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 15064#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 15065#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base main_~a~0.base)) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) main_~p~0.base)), 15066#(and (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 15067#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 15068#(and (<= 1 main_~i~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) |main_#t~mem6.base|) (not (= main_~a~0.base |main_#t~mem6.base|))), 15069#(and (<= 2 main_~i~0) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))), 15070#(and (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base)) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~malloc4.offset|)) (not (= main_~a~0.base |main_#t~malloc4.base|)))), 15071#(and (not (= main_~a~0.base main_~p~0.base)) (= 0 main_~a~0.offset) (or (and (<= 2 main_~i~0) (= main_~a~0.offset main_~t~0.offset)) (not (= main_~a~0.base main_~t~0.base))) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= 0 main_~a~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~p~0.base)) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) main_~a~0.base) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base))), 15072#(and (not (= main_~a~0.base main_~p~0.base)) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) main_~p~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= 0 main_~a~0.base)) (or (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (and (<= 2 main_~i~0) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))) (= 1 (select |#valid| main_~p~0.base))), 15073#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (or (and (<= 2 main_~i~0) (= main_~a~0.offset |main_#t~mem6.offset|)) (not (= main_~a~0.base |main_#t~mem6.base|)))), 15074#(and (= 0 main_~a~0.offset) (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= 0 main_~a~0.base)) (not (= main_~p~0.base main_~a~0.base))))), 15075#(and (= 0 main_~a~0.offset) (or (and (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= main_~a~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4))))) (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset)))), 15076#(and (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= 0 main_~a~0.base)))) (= 0 main_~a~0.offset)), 15077#(and (= main_~p~0.offset 0) (or (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base main_~a~0.base) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))))), 15078#(and (or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base main_~a~0.base) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))) (not (= |main_#t~mem10| main_~i~0))) (= main_~p~0.offset 0)), 15079#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.base main_~a~0.base) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))), 15080#(and (= 0 |main_#t~mem11.offset|) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= 0 main_~a~0.offset) (not (= 0 main_~a~0.base)) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4))))), 15081#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= main_~p~0.offset 0) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 15082#(and (= 0 main_~a~0.offset) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (not (= 0 main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 15083#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 main_~a~0.base))), 15084#(and (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= main_~p~0.offset 0) (not (= 0 main_~p~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))), 15085#(and (= main_~p~0.offset 0) (not (= main_~p~0.base 0)) (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)))) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4))))), 15086#(and (= main_~t~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= main_~p~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)))) (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))), 15087#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)))) (not (= main_~t~0.base (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))), 15088#(or (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))))), 15089#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))))), 15090#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) |main_#t~mem13.base|)))), 15091#(or (not (= main_~p~0.offset 0)) (and (not (= main_~p~0.base 0)) (= 1 (select (store |#valid| main_~p~0.base 0) main_~t~0.base)))), 15092#(= 1 (select |#valid| main_~t~0.base)), 15093#(= (select |#valid| main_~p~0.base) 1)] [2018-02-02 20:21:49,569 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:49,570 INFO L409 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-02-02 20:21:49,570 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-02-02 20:21:49,570 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1503, Unknown=0, NotChecked=0, Total=1640 [2018-02-02 20:21:49,570 INFO L87 Difference]: Start difference. First operand 149 states and 161 transitions. Second operand 41 states. [2018-02-02 20:21:52,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:52,602 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2018-02-02 20:21:52,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-02-02 20:21:52,603 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 79 [2018-02-02 20:21:52,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:52,603 INFO L225 Difference]: With dead ends: 165 [2018-02-02 20:21:52,603 INFO L226 Difference]: Without dead ends: 165 [2018-02-02 20:21:52,603 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1587 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=668, Invalid=5974, Unknown=0, NotChecked=0, Total=6642 [2018-02-02 20:21:52,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-02-02 20:21:52,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 152. [2018-02-02 20:21:52,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-02-02 20:21:52,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 165 transitions. [2018-02-02 20:21:52,605 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 165 transitions. Word has length 79 [2018-02-02 20:21:52,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:52,605 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 165 transitions. [2018-02-02 20:21:52,605 INFO L433 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-02-02 20:21:52,605 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 165 transitions. [2018-02-02 20:21:52,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-02 20:21:52,606 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:52,606 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:52,606 INFO L371 AbstractCegarLoop]: === Iteration 47 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:52,606 INFO L82 PathProgramCache]: Analyzing trace with hash 137204330, now seen corresponding path program 5 times [2018-02-02 20:21:52,606 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:52,617 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:53,637 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:53,638 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-02-02 20:21:53,638 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:53,638 INFO 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 20:21:53,638 INFO L182 omatonBuilderFactory]: Interpolants [15493#true, 15494#false, 15495#(= 0 |main_#t~malloc0.offset|), 15496#(= 0 main_~a~0.offset), 15497#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 15498#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base main_~a~0.base)), 15499#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|)), 15500#(and (= 0 main_~a~0.offset) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= (select |#valid| main_~t~0.base) 1)), 15501#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base)), 15502#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| main_~a~0.base)) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|))), 15503#(and (or (and (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))) (<= (+ main_~p~0.offset 1) 0)) (= 0 main_~a~0.offset) (= (select |#valid| main_~p~0.base) 1)), 15504#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 15505#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 0 |main_#t~malloc4.offset|) (= 8 (select |#length| |main_#t~malloc4.base|))), 15506#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= 1 (select |#valid| main_~a~0.base)) (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= main_~a~0.base main_~t~0.base))), 15507#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= 0 main_~a~0.offset) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 1 (select |#valid| main_~a~0.base)) (= main_~p~0.offset 0) (= 1 (select |#valid| main_~p~0.base)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 15508#(and (= 0 main_~a~0.offset) (= 1 (select |#valid| main_~a~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= |main_#t~mem6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= 8 (select |#length| |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 15509#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 1 (select |#valid| main_~a~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 15510#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base)) (= 8 (select |#length| main_~p~0.base))), 15511#(and (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.offset)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 main_~a~0.offset) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (= 8 (select |#length| main_~p~0.base)) (not (= main_~a~0.base main_~t~0.base))), 15512#(and (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (= 8 (select |#length| main_~p~0.base))), 15513#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= main_~a~0.base |main_#t~mem6.base|))), 15514#(and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 15515#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~p~0.base (store (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)))), 15516#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))), 15517#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))), 15518#(and (= 0 main_~a~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)))) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem11.base|) (+ 0 4)))), 15519#(and (or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))))) (and (not (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))) (or (= main_~p~0.offset (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4))) (not (= 1 main_~p~0.offset))))) (= 0 main_~a~0.offset)), 15520#(and (= 0 main_~a~0.offset) (or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ 0 4))) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4))))) (not (= (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)) 0)))), 15521#(and (= 0 main_~a~0.offset) (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) (+ 0 4)))))), 15522#(and (or (not (= (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)) 0)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4))))) (= main_~p~0.offset 0)), 15523#(and (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem13.base|) (+ 0 4)))) (not (= 0 |main_#t~mem13.offset|))) (= main_~p~0.offset 0)), 15524#(and (or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~t~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))) (not (= 0 main_~t~0.offset))) (= main_~p~0.offset 0)), 15525#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~t~0.base) (+ 0 4))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4))))) (not (= 0 main_~t~0.offset))), 15526#(or (<= (+ main_~p~0.offset 1) 0) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4)))) (<= 1 main_~p~0.offset)), 15527#(or (not (= main_~p~0.offset 0)) (and (= 8 (select |#length| |main_#t~mem13.base|)) (= 0 |main_#t~mem13.offset|))), 15528#(or (not (= main_~p~0.offset 0)) (and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset))), 15529#(and (= 8 (select |#length| main_~t~0.base)) (= 0 main_~t~0.offset)), 15530#(and (= main_~p~0.offset 0) (= 8 (select |#length| main_~p~0.base)))] [2018-02-02 20:21:53,638 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:21:53,638 INFO L409 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-02-02 20:21:53,639 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-02-02 20:21:53,639 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1259, Unknown=0, NotChecked=0, Total=1406 [2018-02-02 20:21:53,639 INFO L87 Difference]: Start difference. First operand 152 states and 165 transitions. Second operand 38 states. [2018-02-02 20:21:55,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:21:55,385 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2018-02-02 20:21:55,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-02 20:21:55,385 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 79 [2018-02-02 20:21:55,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:21:55,386 INFO L225 Difference]: With dead ends: 184 [2018-02-02 20:21:55,386 INFO L226 Difference]: Without dead ends: 184 [2018-02-02 20:21:55,386 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1241 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=586, Invalid=4526, Unknown=0, NotChecked=0, Total=5112 [2018-02-02 20:21:55,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-02-02 20:21:55,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 155. [2018-02-02 20:21:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-02-02 20:21:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 168 transitions. [2018-02-02 20:21:55,387 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 168 transitions. Word has length 79 [2018-02-02 20:21:55,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:21:55,387 INFO L432 AbstractCegarLoop]: Abstraction has 155 states and 168 transitions. [2018-02-02 20:21:55,387 INFO L433 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-02-02 20:21:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 168 transitions. [2018-02-02 20:21:55,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-02-02 20:21:55,388 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:21:55,388 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:21:55,388 INFO L371 AbstractCegarLoop]: === Iteration 48 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 20:21:55,388 INFO L82 PathProgramCache]: Analyzing trace with hash -41634601, now seen corresponding path program 6 times [2018-02-02 20:21:55,388 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:21:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:21:55,397 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:21:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:21:56,247 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 20:21:56,247 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-02-02 20:21:56,247 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:21:56,247 INFO 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 20:21:56,247 INFO L182 omatonBuilderFactory]: Interpolants [15938#true, 15939#false, 15940#(= |main_#t~malloc0.offset| 0), 15941#(= main_~a~0.offset 0), 15942#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 15943#(and (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 15944#(and (= (select |#valid| |main_#t~malloc4.base|) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (= main_~p~0.base main_~a~0.base) (= 0 |main_#t~malloc4.offset|) (= main_~i~0 0)), 15945#(and (= 0 main_~t~0.offset) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0) (= (select |#valid| main_~t~0.base) 1)), 15946#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) 1) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (= (select |#valid| main_~p~0.base) 1) (= main_~p~0.base main_~a~0.base) (= main_~i~0 0)), 15947#(and (= (select |#valid| main_~a~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|) (= main_~a~0.offset 0) (= 0 |main_#t~mem6.offset|) (= (select |#valid| |main_#t~mem6.base|) 1) (not (= main_~a~0.base |main_#t~mem6.base|)) (= main_~i~0 0)), 15948#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= main_~a~0.offset 0) (or (<= (+ main_~p~0.offset 1) 0) (= main_~p~0.offset 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 15949#(and (<= 1 main_~i~0) (= (select |#valid| main_~a~0.base) 1) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= main_~p~0.base main_~a~0.base))), 15950#(and (not (= main_~a~0.base |main_#t~malloc4.base|)) (<= 1 main_~i~0) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base |main_#t~malloc4.base|)) (not (= |main_#t~malloc4.base| 0)) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (not (= main_~p~0.base main_~a~0.base))), 15951#(and (<= 1 main_~i~0) (= main_~p~0.base (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (= main_~p~0.offset 0) (= main_~a~0.offset 0) (not (= main_~p~0.base main_~t~0.base)) (not (= main_~t~0.base 0)) (not (= main_~a~0.base main_~t~0.base))), 15952#(and (<= 1 main_~i~0) (not (= main_~a~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~a~0.offset 0) (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (= (select |#valid| main_~p~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ 0 4)) 0))), 15953#(and (<= 1 main_~i~0) (= main_~a~0.offset 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0)) (not (= main_~a~0.base |main_#t~mem6.base|))), 15954#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (= main_~a~0.offset 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) 1) (not (= main_~p~0.base main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 15955#(and (<= 2 main_~i~0) (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~malloc4.base|)) (= main_~a~0.offset |main_#t~malloc4.offset|) (= 0 main_~a~0.offset) (not (= main_~p~0.base main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 15956#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (= main_~a~0.offset main_~t~0.offset) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4)) main_~t~0.base)) (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) main_~t~0.base)) main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 15957#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)))) (= main_~a~0.offset (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 15958#(and (<= 2 main_~i~0) (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)) |main_#t~mem6.base|)) (= main_~a~0.offset |main_#t~mem6.offset|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 15959#(and (or (and (not (= main_~i~0 0)) (= main_~p~0.offset main_~a~0.offset) (= main_~p~0.base main_~a~0.base)) (and (not (= main_~p~0.base (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))) (not (= main_~p~0.base main_~a~0.base)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0)))) (= 0 main_~a~0.offset)), 15960#(and (= 0 main_~a~0.offset) (or (not (= (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) (select (select (store |#memory_$Pointer$.base| main_~p~0.base (store (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4) 0)) main_~a~0.base) (+ 0 4))) (+ 0 4)) 0)) (and (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) (= main_~p~0.base main_~a~0.base) (= main_~p~0.offset main_~a~0.offset)))), 15961#(and (= 0 main_~a~0.offset) (or (not (= (select (select |#memory_int| main_~a~0.base) main_~a~0.offset) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0)))), 15962#(and (= 0 main_~a~0.offset) (or (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)) 0)) (= main_~p~0.base main_~a~0.base)) (not (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) main_~i~0))) (= main_~p~0.offset 0)), 15963#(and (= 0 main_~a~0.offset) (= main_~p~0.offset 0) (or (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)) 0)) (= main_~p~0.base main_~a~0.base)) (not (= |main_#t~mem10| main_~i~0)))), 15964#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)) 0)) (= main_~p~0.offset 0) (= main_~p~0.base main_~a~0.base)), 15965#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem11.base|) (+ 0 4)) 0)) (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4)))), 15966#(and (= 0 main_~a~0.offset) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~a~0.base) (+ 0 4))) (+ 0 4)) 0))), 15967#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (+ 0 4)) 0)) (= main_~p~0.offset 0)), 15968#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem13.base|) (+ 0 4)) 0)) (= main_~p~0.offset 0)), 15969#(and (not (= (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)) 0)) (= main_~p~0.offset 0)), 15970#(not (= (select (select |#memory_$Pointer$.base| main_~t~0.base) (+ 0 4)) 0)), 15971#(or (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4)) 0))), 15972#(or (not (= |main_#t~mem13.base| 0)) (<= (+ main_~p~0.offset 1) 0) (<= 1 main_~p~0.offset)), 15973#(or (<= (+ main_~p~0.offset 1) 0) (not (= main_~t~0.base 0)) (<= 1 main_~p~0.offset)), 15974#(not (= main_~t~0.base 0)), 15975#(not (= main_~p~0.base 0))] [2018-02-02 20:21:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 20:21:56,247 INFO L409 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-02-02 20:21:56,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-02-02 20:21:56,248 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1273, Unknown=0, NotChecked=0, Total=1406 [2018-02-02 20:21:56,248 INFO L87 Difference]: Start difference. First operand 155 states and 168 transitions. Second operand 38 states. Received shutdown request... [2018-02-02 20:21:58,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-02-02 20:21:58,178 WARN L491 AbstractCegarLoop]: Verification canceled [2018-02-02 20:21:58,182 WARN L185 ceAbstractionStarter]: Timeout [2018-02-02 20:21:58,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 08:21:58 BoogieIcfgContainer [2018-02-02 20:21:58,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 20:21:58,183 INFO L168 Benchmark]: Toolchain (without parser) took 77043.61 ms. Allocated memory was 397.4 MB in the beginning and 1.3 GB in the end (delta: 865.1 MB). Free memory was 351.5 MB in the beginning and 437.2 MB in the end (delta: -85.7 MB). Peak memory consumption was 779.4 MB. Max. memory is 5.3 GB. [2018-02-02 20:21:58,184 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 397.4 MB. Free memory is still 358.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 20:21:58,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.03 ms. Allocated memory is still 397.4 MB. Free memory was 351.5 MB in the beginning and 340.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 20:21:58,184 INFO L168 Benchmark]: Boogie Preprocessor took 23.10 ms. Allocated memory is still 397.4 MB. Free memory was 340.9 MB in the beginning and 339.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-02-02 20:21:58,185 INFO L168 Benchmark]: RCFGBuilder took 201.74 ms. Allocated memory is still 397.4 MB. Free memory was 339.5 MB in the beginning and 315.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-02-02 20:21:58,185 INFO L168 Benchmark]: TraceAbstraction took 76651.08 ms. Allocated memory was 397.4 MB in the beginning and 1.3 GB in the end (delta: 865.1 MB). Free memory was 314.4 MB in the beginning and 437.2 MB in the end (delta: -122.8 MB). Peak memory consumption was 742.3 MB. Max. memory is 5.3 GB. [2018-02-02 20:21:58,186 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 397.4 MB. Free memory is still 358.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 165.03 ms. Allocated memory is still 397.4 MB. Free memory was 351.5 MB in the beginning and 340.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.10 ms. Allocated memory is still 397.4 MB. Free memory was 340.9 MB in the beginning and 339.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 201.74 ms. Allocated memory is still 397.4 MB. Free memory was 339.5 MB in the beginning and 315.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 76651.08 ms. Allocated memory was 397.4 MB in the beginning and 1.3 GB in the end (delta: 865.1 MB). Free memory was 314.4 MB in the beginning and 437.2 MB in the end (delta: -122.8 MB). Peak memory consumption was 742.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 655). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 642). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 627]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 627). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 641). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 642). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 654). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 655). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 641). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 654). Cancelled while BasicCegarLoop was constructing difference of abstraction (155states) and interpolant automaton (currently 46 states, 38 states before enhancement), while ReachableStatesComputation was computing reachable states (158 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 19 error locations. TIMEOUT Result, 76.6s OverallTime, 48 OverallIterations, 5 TraceHistogramMax, 48.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1891 SDtfs, 14072 SDslu, 20116 SDs, 0 SdLazy, 36609 SolverSat, 4133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2321 GetRequests, 112 SyntacticMatches, 81 SemanticMatches, 2128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26798 ImplicationChecksByTransitivity, 51.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 76/1780 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, 47 MinimizatonAttempts, 895 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 26.9s InterpolantComputationTime, 2622 NumberOfCodeBlocks, 2622 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 2574 ConstructedInterpolants, 0 QuantifiedInterpolants, 4806574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 48 InterpolantComputations, 6 PerfectInterpolantSequences, 76/1780 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/simple-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_20-21-58-193.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_20-21-58-193.csv Completed graceful shutdown