java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 17:23:29,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 17:23:29,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 17:23:29,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-02 17:23:29,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 17:23:29,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 17:23:29,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 17:23:29,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 17:23:29,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 17:23:29,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 17:23:29,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 17:23:29,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 17:23:29,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 17:23:29,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 17:23:29,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 17:23:29,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 17:23:29,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 17:23:29,886 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 17:23:29,901 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 17:23:29,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 17:23:29,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 17:23:29,902 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 17:23:29,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 17:23:29,903 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 17:23:29,903 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 17:23:29,903 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 17:23:29,904 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 17:23:29,904 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 17:23:29,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 17:23:29,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 17:23:29,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 17:23:29,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 17:23:29,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 17:23:29,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 17:23:29,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 17:23:29,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 17:23:29,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 17:23:29,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 17:23:29,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 17:23:29,907 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 17:23:29,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 17:23:29,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 17:23:29,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 17:23:29,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 17:23:29,908 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 17:23:29,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 17:23:29,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 17:23:29,908 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 17:23:29,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 17:23:29,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 17:23:29,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 17:23:29,964 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 17:23:29,964 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 17:23:29,965 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2019-10-02 17:23:30,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7281abd9e/5728cdfb15df44fca579fbffbb882405/FLAG469730a74 [2019-10-02 17:23:30,589 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 17:23:30,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2019-10-02 17:23:30,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7281abd9e/5728cdfb15df44fca579fbffbb882405/FLAG469730a74 [2019-10-02 17:23:30,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7281abd9e/5728cdfb15df44fca579fbffbb882405 [2019-10-02 17:23:30,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 17:23:30,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 17:23:30,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 17:23:30,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 17:23:30,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 17:23:30,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:23:30" (1/1) ... [2019-10-02 17:23:30,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed11f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:30, skipping insertion in model container [2019-10-02 17:23:30,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:23:30" (1/1) ... [2019-10-02 17:23:30,875 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 17:23:30,947 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 17:23:31,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:23:31,476 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 17:23:31,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:23:31,615 INFO L192 MainTranslator]: Completed translation [2019-10-02 17:23:31,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31 WrapperNode [2019-10-02 17:23:31,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 17:23:31,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 17:23:31,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 17:23:31,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 17:23:31,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (1/1) ... [2019-10-02 17:23:31,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (1/1) ... [2019-10-02 17:23:31,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (1/1) ... [2019-10-02 17:23:31,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (1/1) ... [2019-10-02 17:23:31,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (1/1) ... [2019-10-02 17:23:31,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (1/1) ... [2019-10-02 17:23:31,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (1/1) ... [2019-10-02 17:23:31,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 17:23:31,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 17:23:31,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 17:23:31,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 17:23:31,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (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 [2019-10-02 17:23:31,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 17:23:31,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 17:23:31,778 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-02 17:23:31,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 17:23:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-02 17:23:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 17:23:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 17:23:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 17:23:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 17:23:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 17:23:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 17:23:32,911 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 17:23:32,912 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 17:23:32,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:23:32 BoogieIcfgContainer [2019-10-02 17:23:32,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 17:23:32,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 17:23:32,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 17:23:32,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 17:23:32,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 05:23:30" (1/3) ... [2019-10-02 17:23:32,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a3c9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:23:32, skipping insertion in model container [2019-10-02 17:23:32,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:23:31" (2/3) ... [2019-10-02 17:23:32,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a3c9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:23:32, skipping insertion in model container [2019-10-02 17:23:32,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:23:32" (3/3) ... [2019-10-02 17:23:32,924 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2019-10-02 17:23:32,934 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 17:23:32,944 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 17:23:32,963 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 17:23:32,993 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 17:23:32,994 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 17:23:32,994 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 17:23:32,994 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 17:23:32,995 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 17:23:32,995 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 17:23:32,995 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 17:23:32,995 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 17:23:33,018 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2019-10-02 17:23:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-02 17:23:33,033 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:23:33,034 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:23:33,036 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:23:33,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:23:33,042 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2019-10-02 17:23:33,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:23:33,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:23:33,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:23:33,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:23:33,094 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:23:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:23:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:23:33,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:23:33,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 17:23:33,567 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:23:33,575 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 17:23:33,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 17:23:33,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 17:23:33,593 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2019-10-02 17:23:34,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:23:34,912 INFO L93 Difference]: Finished difference Result 561 states and 864 transitions. [2019-10-02 17:23:34,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 17:23:34,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-10-02 17:23:34,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:23:34,937 INFO L225 Difference]: With dead ends: 561 [2019-10-02 17:23:34,937 INFO L226 Difference]: Without dead ends: 474 [2019-10-02 17:23:34,939 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 17:23:34,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-02 17:23:35,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 320. [2019-10-02 17:23:35,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-10-02 17:23:35,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 472 transitions. [2019-10-02 17:23:35,026 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 472 transitions. Word has length 98 [2019-10-02 17:23:35,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:23:35,027 INFO L475 AbstractCegarLoop]: Abstraction has 320 states and 472 transitions. [2019-10-02 17:23:35,027 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 17:23:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 472 transitions. [2019-10-02 17:23:35,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-02 17:23:35,034 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:23:35,034 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:23:35,034 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:23:35,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:23:35,035 INFO L82 PathProgramCache]: Analyzing trace with hash -553213703, now seen corresponding path program 1 times [2019-10-02 17:23:35,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:23:35,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:23:35,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:23:35,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:23:35,037 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:23:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:23:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-02 17:23:35,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 17:23:35,209 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 17:23:35,210 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2019-10-02 17:23:35,212 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2019-10-02 17:23:35,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 17:23:35,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 17:25:32,943 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 17:25:32,944 INFO L272 AbstractInterpreter]: Visited 98 different actions 98 times. Never merged. Never widened. Performed 163 root evaluator evaluations with a maximum evaluation depth of 18. Performed 163 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Never found a fixpoint. Largest state had 38 variables. [2019-10-02 17:25:32,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:25:32,948 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 17:26:46,343 INFO L227 lantSequenceWeakener]: Weakened 100 states. On average, predicates are now at 80.47% of their original sizes. [2019-10-02 17:26:46,343 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 17:26:46,414 INFO L420 sIntCurrentIteration]: We unified 105 AI predicates to 105 [2019-10-02 17:26:46,414 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 17:26:46,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 17:26:46,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2019-10-02 17:26:46,416 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:26:46,417 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 17:26:46,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 17:26:46,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-02 17:26:46,418 INFO L87 Difference]: Start difference. First operand 320 states and 472 transitions. Second operand 10 states. [2019-10-02 17:27:04,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 17:27:04,072 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable ~a25~0. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:83) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:89) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:90) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:90) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalEvaluator.evaluate(NonrelationalEvaluator.java:81) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:297) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:156) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:250) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:708) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:637) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:467) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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) [2019-10-02 17:27:04,080 INFO L168 Benchmark]: Toolchain (without parser) took 213223.26 ms. Allocated memory was 131.6 MB in the beginning and 368.6 MB in the end (delta: 237.0 MB). Free memory was 84.0 MB in the beginning and 152.2 MB in the end (delta: -68.2 MB). Peak memory consumption was 168.8 MB. Max. memory is 7.1 GB. [2019-10-02 17:27:04,081 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 17:27:04,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.84 ms. Allocated memory was 131.6 MB in the beginning and 202.4 MB in the end (delta: 70.8 MB). Free memory was 83.8 MB in the beginning and 167.4 MB in the end (delta: -83.6 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2019-10-02 17:27:04,090 INFO L168 Benchmark]: Boogie Preprocessor took 100.98 ms. Allocated memory is still 202.4 MB. Free memory was 167.4 MB in the beginning and 162.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-02 17:27:04,091 INFO L168 Benchmark]: RCFGBuilder took 1195.82 ms. Allocated memory was 202.4 MB in the beginning and 223.9 MB in the end (delta: 21.5 MB). Free memory was 162.7 MB in the beginning and 177.8 MB in the end (delta: -15.1 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB. [2019-10-02 17:27:04,093 INFO L168 Benchmark]: TraceAbstraction took 211161.85 ms. Allocated memory was 223.9 MB in the beginning and 368.6 MB in the end (delta: 144.7 MB). Free memory was 176.4 MB in the beginning and 152.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 168.9 MB. Max. memory is 7.1 GB. [2019-10-02 17:27:04,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.84 ms. Allocated memory was 131.6 MB in the beginning and 202.4 MB in the end (delta: 70.8 MB). Free memory was 83.8 MB in the beginning and 167.4 MB in the end (delta: -83.6 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.98 ms. Allocated memory is still 202.4 MB. Free memory was 167.4 MB in the beginning and 162.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1195.82 ms. Allocated memory was 202.4 MB in the beginning and 223.9 MB in the end (delta: 21.5 MB). Free memory was 162.7 MB in the beginning and 177.8 MB in the end (delta: -15.1 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211161.85 ms. Allocated memory was 223.9 MB in the beginning and 368.6 MB in the end (delta: 144.7 MB). Free memory was 176.4 MB in the beginning and 152.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 168.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable ~a25~0. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable ~a25~0.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...