java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 11:25:00,832 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 11:25:00,834 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 11:25:00,850 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 11:25:00,850 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 11:25:00,851 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 11:25:00,853 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 11:25:00,855 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 11:25:00,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 11:25:00,857 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 11:25:00,858 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 11:25:00,858 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 11:25:00,859 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 11:25:00,860 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 11:25:00,861 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 11:25:00,862 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 11:25:00,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 11:25:00,865 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 11:25:00,867 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 11:25:00,869 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 11:25:00,870 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 11:25:00,871 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 11:25:00,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 11:25:00,874 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 11:25:00,874 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 11:25:00,875 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 11:25:00,876 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 11:25:00,877 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 11:25:00,878 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 11:25:00,879 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 11:25:00,879 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 11:25:00,880 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 11:25:00,883 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 11:25:00,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 11:25:00,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 11:25:00,900 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 11:25:00,901 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 11:25:00,901 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 11:25:00,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 11:25:00,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 11:25:00,901 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 11:25:00,902 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 11:25:00,903 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 11:25:00,903 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 11:25:00,903 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 11:25:00,903 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 11:25:00,903 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 11:25:00,904 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 11:25:00,904 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 11:25:00,904 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 11:25:00,904 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 11:25:00,904 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 11:25:00,905 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 11:25:00,906 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 11:25:00,906 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 11:25:00,907 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 11:25:00,907 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 11:25:00,907 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 11:25:00,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump [2018-10-10 11:25:00,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 11:25:00,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 11:25:00,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 11:25:00,986 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 11:25:00,986 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 11:25:00,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-10-10 11:25:01,289 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f6bf4aa2/904de8c418054b9f8a8d2a68a79f1f2b/FLAG4d044e6b4 [2018-10-10 11:25:01,488 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 11:25:01,489 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-10-10 11:25:01,496 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f6bf4aa2/904de8c418054b9f8a8d2a68a79f1f2b/FLAG4d044e6b4 [2018-10-10 11:25:01,510 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f6bf4aa2/904de8c418054b9f8a8d2a68a79f1f2b [2018-10-10 11:25:01,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 11:25:01,523 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 11:25:01,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 11:25:01,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 11:25:01,529 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 11:25:01,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19086408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01, skipping insertion in model container [2018-10-10 11:25:01,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 11:25:01,568 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 11:25:01,742 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:25:01,752 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 11:25:01,774 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:25:01,792 INFO L193 MainTranslator]: Completed translation [2018-10-10 11:25:01,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01 WrapperNode [2018-10-10 11:25:01,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 11:25:01,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 11:25:01,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 11:25:01,794 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 11:25:01,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 11:25:01,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 11:25:01,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 11:25:01,858 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 11:25:01,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 11:25:01,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 11:25:01,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 11:25:01,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 11:25:01,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... No working directory specified, using /storage/repos/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 [2018-10-10 11:25:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 11:25:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 11:25:02,598 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 11:25:02,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:25:02 BoogieIcfgContainer [2018-10-10 11:25:02,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 11:25:02,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 11:25:02,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 11:25:02,604 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 11:25:02,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:25:01" (1/3) ... [2018-10-10 11:25:02,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524ba4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:25:02, skipping insertion in model container [2018-10-10 11:25:02,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (2/3) ... [2018-10-10 11:25:02,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524ba4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:25:02, skipping insertion in model container [2018-10-10 11:25:02,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:25:02" (3/3) ... [2018-10-10 11:25:02,608 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-10-10 11:25:02,616 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 11:25:02,624 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-10 11:25:02,641 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-10 11:25:02,670 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 11:25:02,671 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 11:25:02,671 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 11:25:02,671 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 11:25:02,671 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 11:25:02,671 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 11:25:02,672 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 11:25:02,672 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 11:25:02,672 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 11:25:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-10-10 11:25:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-10 11:25:02,697 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:02,698 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:02,701 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:25:02,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:02,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1805952520, now seen corresponding path program 1 times [2018-10-10 11:25:02,710 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:02,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:02,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:02,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:02,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:02,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:02,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 11:25:02,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 11:25:02,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 11:25:02,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:25:02,906 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2018-10-10 11:25:03,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:03,031 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-10-10 11:25:03,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 11:25:03,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-10 11:25:03,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:03,043 INFO L225 Difference]: With dead ends: 67 [2018-10-10 11:25:03,043 INFO L226 Difference]: Without dead ends: 63 [2018-10-10 11:25:03,045 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:25:03,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-10 11:25:03,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2018-10-10 11:25:03,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-10 11:25:03,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-10-10 11:25:03,084 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 7 [2018-10-10 11:25:03,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:03,084 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-10-10 11:25:03,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 11:25:03,085 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-10-10 11:25:03,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-10 11:25:03,085 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:03,085 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:03,086 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:25:03,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:03,087 INFO L82 PathProgramCache]: Analyzing trace with hash 148998123, now seen corresponding path program 1 times [2018-10-10 11:25:03,087 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:03,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:03,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:03,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:03,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:03,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:25:03,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 11:25:03,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 11:25:03,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:25:03,128 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 3 states. [2018-10-10 11:25:03,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:03,244 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2018-10-10 11:25:03,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 11:25:03,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-10 11:25:03,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:03,248 INFO L225 Difference]: With dead ends: 68 [2018-10-10 11:25:03,249 INFO L226 Difference]: Without dead ends: 68 [2018-10-10 11:25:03,250 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:25:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-10-10 11:25:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 40. [2018-10-10 11:25:03,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-10 11:25:03,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-10-10 11:25:03,263 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 8 [2018-10-10 11:25:03,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:03,263 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-10-10 11:25:03,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 11:25:03,263 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-10-10 11:25:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-10 11:25:03,264 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:03,264 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:03,264 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:25:03,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:03,265 INFO L82 PathProgramCache]: Analyzing trace with hash 149953326, now seen corresponding path program 1 times [2018-10-10 11:25:03,266 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:03,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:03,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:03,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:03,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:03,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 11:25:03,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 11:25:03,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 11:25:03,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:25:03,393 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 5 states. [2018-10-10 11:25:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:03,705 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2018-10-10 11:25:03,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:25:03,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-10 11:25:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:03,707 INFO L225 Difference]: With dead ends: 54 [2018-10-10 11:25:03,708 INFO L226 Difference]: Without dead ends: 54 [2018-10-10 11:25:03,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 11:25:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-10-10 11:25:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2018-10-10 11:25:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-10 11:25:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-10-10 11:25:03,717 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 8 [2018-10-10 11:25:03,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:03,717 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-10-10 11:25:03,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 11:25:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-10-10 11:25:03,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-10 11:25:03,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:03,719 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:03,720 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:25:03,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:03,720 INFO L82 PathProgramCache]: Analyzing trace with hash 353536214, now seen corresponding path program 1 times [2018-10-10 11:25:03,721 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:03,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:03,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:03,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:03,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:03,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:25:03,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 11:25:03,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 11:25:03,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:25:03,796 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 3 states. [2018-10-10 11:25:03,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:03,853 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2018-10-10 11:25:03,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 11:25:03,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-10-10 11:25:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:03,855 INFO L225 Difference]: With dead ends: 43 [2018-10-10 11:25:03,856 INFO L226 Difference]: Without dead ends: 43 [2018-10-10 11:25:03,856 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:25:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-10 11:25:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-10-10 11:25:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-10 11:25:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-10-10 11:25:03,867 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 9 [2018-10-10 11:25:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:03,868 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-10-10 11:25:03,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 11:25:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-10-10 11:25:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-10 11:25:03,868 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:03,869 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:03,871 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:25:03,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:03,871 INFO L82 PathProgramCache]: Analyzing trace with hash 353585866, now seen corresponding path program 1 times [2018-10-10 11:25:03,872 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:03,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:03,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:03,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:03,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:03,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 11:25:03,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 11:25:03,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 11:25:03,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:25:03,997 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 5 states. [2018-10-10 11:25:04,143 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-10 11:25:04,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:04,335 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-10-10 11:25:04,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 11:25:04,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-10 11:25:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:04,337 INFO L225 Difference]: With dead ends: 61 [2018-10-10 11:25:04,337 INFO L226 Difference]: Without dead ends: 61 [2018-10-10 11:25:04,338 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-10 11:25:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-10-10 11:25:04,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 41. [2018-10-10 11:25:04,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-10 11:25:04,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-10-10 11:25:04,344 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 9 [2018-10-10 11:25:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:04,344 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-10-10 11:25:04,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 11:25:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-10-10 11:25:04,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-10 11:25:04,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:04,346 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:04,346 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:25:04,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:04,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1905779327, now seen corresponding path program 1 times [2018-10-10 11:25:04,347 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:04,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:04,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:04,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:04,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:04,490 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 11:25:04,490 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 11:25:04,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:04,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:25:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:04,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 11:25:04,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2018-10-10 11:25:04,678 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#mask~0.offset_1| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1| 1)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 32), (= |v_ULTIMATE.start_main_~#mask~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1|) 0), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#b~0.base_1| 400) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (not (= |v_ULTIMATE.start_main_~#b~0.base_1| 0)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_3|), (= v_ULTIMATE.start_main_~i~1_1 0), (= 0 |v_ULTIMATE.start_main_~#b~0.offset_1|), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_5|), (= |v_ULTIMATE.start_main_~#mask~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)] at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.extractUpdateRhs(SimultaneousUpdate.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:104) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.addStatementsAndVariables(PathProgramDumper.java:634) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructTransitionStatements(PathProgramDumper.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.processTransition(PathProgramDumper.java:521) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructProcedureStatements(PathProgramDumper.java:489) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructNewImplementation(PathProgramDumper.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.(PathProgramDumper.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.doDump(PathProgramDumpController.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.reportPathProgram(PathProgramDumpController.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-10 11:25:04,685 INFO L168 Benchmark]: Toolchain (without parser) took 3162.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -671.4 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:04,686 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:25:04,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:04,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:25:04,690 INFO L168 Benchmark]: Boogie Preprocessor took 60.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:25:04,690 INFO L168 Benchmark]: RCFGBuilder took 680.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:04,691 INFO L168 Benchmark]: TraceAbstraction took 2083.59 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 92.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:04,699 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 268.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 680.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2083.59 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 92.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#mask~0.offset_1| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1| 1)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 32), (= |v_ULTIMATE.start_main_~#mask~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1|) 0), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#b~0.base_1| 400) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (not (= |v_ULTIMATE.start_main_~#b~0.base_1| 0)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_3|), (= v_ULTIMATE.start_main_~i~1_1 0), (= 0 |v_ULTIMATE.start_main_~#b~0.offset_1|), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_5|), (= |v_ULTIMATE.start_main_~#mask~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#mask~0.offset_1| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1| 1)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 32), (= |v_ULTIMATE.start_main_~#mask~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1|) 0), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#b~0.base_1| 400) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (not (= |v_ULTIMATE.start_main_~#b~0.base_1| 0)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_3|), (= v_ULTIMATE.start_main_~i~1_1 0), (= 0 |v_ULTIMATE.start_main_~#b~0.offset_1|), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_5|), (= |v_ULTIMATE.start_main_~#mask~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)]: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...