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_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 07:06:07,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 07:06:07,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 07:06:07,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 07:06:07,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 07:06:07,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 07:06:07,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 07:06:07,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 07:06:07,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 07:06:07,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 07:06:07,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 07:06:07,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 07:06:07,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 07:06:07,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 07:06:07,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 07:06:07,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 07:06:07,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 07:06:07,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 07:06:07,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 07:06:07,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 07:06:07,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 07:06:07,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 07:06:07,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 07:06:07,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 07:06:07,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 07:06:07,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 07:06:07,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 07:06:07,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 07:06:07,789 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 [2019-09-09 07:06:07,804 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 07:06:07,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 07:06:07,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 07:06:07,805 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 07:06:07,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 07:06:07,806 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 07:06:07,806 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 07:06:07,806 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 07:06:07,806 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 07:06:07,806 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 07:06:07,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 07:06:07,807 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 07:06:07,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 07:06:07,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 07:06:07,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 07:06:07,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 07:06:07,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 07:06:07,808 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 07:06:07,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 07:06:07,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 07:06:07,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 07:06:07,809 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 07:06:07,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 07:06:07,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 07:06:07,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 07:06:07,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 07:06:07,810 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 07:06:07,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 07:06:07,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 07:06:07,811 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 07:06:07,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 07:06:07,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 07:06:07,855 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 07:06:07,856 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 07:06:07,856 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 07:06:07,857 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2019-09-09 07:06:07,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14ba0bb5b/8a4d78d1b59f486a8996077ccaf24d49/FLAG5dfa902ac [2019-09-09 07:06:08,461 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 07:06:08,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2019-09-09 07:06:08,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14ba0bb5b/8a4d78d1b59f486a8996077ccaf24d49/FLAG5dfa902ac [2019-09-09 07:06:08,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14ba0bb5b/8a4d78d1b59f486a8996077ccaf24d49 [2019-09-09 07:06:08,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 07:06:08,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 07:06:08,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 07:06:08,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 07:06:08,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 07:06:08,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 07:06:08" (1/1) ... [2019-09-09 07:06:08,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e82c7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:08, skipping insertion in model container [2019-09-09 07:06:08,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 07:06:08" (1/1) ... [2019-09-09 07:06:08,761 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 07:06:08,821 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 07:06:09,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 07:06:09,325 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 07:06:09,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 07:06:09,531 INFO L192 MainTranslator]: Completed translation [2019-09-09 07:06:09,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09 WrapperNode [2019-09-09 07:06:09,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 07:06:09,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 07:06:09,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 07:06:09,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 07:06:09,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (1/1) ... [2019-09-09 07:06:09,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (1/1) ... [2019-09-09 07:06:09,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (1/1) ... [2019-09-09 07:06:09,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (1/1) ... [2019-09-09 07:06:09,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (1/1) ... [2019-09-09 07:06:09,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (1/1) ... [2019-09-09 07:06:09,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (1/1) ... [2019-09-09 07:06:09,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 07:06:09,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 07:06:09,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 07:06:09,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 07:06:09,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (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 [2019-09-09 07:06:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 07:06:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 07:06:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-09 07:06:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 07:06:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-09 07:06:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 07:06:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 07:06:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-09 07:06:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 07:06:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 07:06:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 07:06:10,882 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 07:06:10,883 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-09 07:06:10,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 07:06:10 BoogieIcfgContainer [2019-09-09 07:06:10,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 07:06:10,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 07:06:10,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 07:06:10,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 07:06:10,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 07:06:08" (1/3) ... [2019-09-09 07:06:10,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72478bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 07:06:10, skipping insertion in model container [2019-09-09 07:06:10,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 07:06:09" (2/3) ... [2019-09-09 07:06:10,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72478bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 07:06:10, skipping insertion in model container [2019-09-09 07:06:10,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 07:06:10" (3/3) ... [2019-09-09 07:06:10,892 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label52.c [2019-09-09 07:06:10,902 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 07:06:10,910 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 07:06:10,927 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 07:06:10,954 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 07:06:10,954 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 07:06:10,955 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 07:06:10,955 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 07:06:10,955 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 07:06:10,955 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 07:06:10,955 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 07:06:10,956 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 07:06:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2019-09-09 07:06:10,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-09 07:06:10,994 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 07:06:10,995 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 07:06:10,998 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 07:06:11,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 07:06:11,003 INFO L82 PathProgramCache]: Analyzing trace with hash -777531634, now seen corresponding path program 1 times [2019-09-09 07:06:11,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 07:06:11,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:11,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 07:06:11,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:11,051 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 07:06:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 07:06:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 07:06:11,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 07:06:11,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-09 07:06:11,495 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 07:06:11,502 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-09 07:06:11,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-09 07:06:11,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 07:06:11,523 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2019-09-09 07:06:12,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 07:06:12,844 INFO L93 Difference]: Finished difference Result 540 states and 874 transitions. [2019-09-09 07:06:12,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 07:06:12,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2019-09-09 07:06:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 07:06:12,866 INFO L225 Difference]: With dead ends: 540 [2019-09-09 07:06:12,866 INFO L226 Difference]: Without dead ends: 468 [2019-09-09 07:06:12,868 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 07:06:12,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-09-09 07:06:12,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 466. [2019-09-09 07:06:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-09-09 07:06:12,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 692 transitions. [2019-09-09 07:06:12,994 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 692 transitions. Word has length 110 [2019-09-09 07:06:12,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 07:06:12,995 INFO L475 AbstractCegarLoop]: Abstraction has 466 states and 692 transitions. [2019-09-09 07:06:12,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-09 07:06:12,996 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 692 transitions. [2019-09-09 07:06:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-09-09 07:06:13,007 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 07:06:13,008 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 07:06:13,008 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 07:06:13,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 07:06:13,012 INFO L82 PathProgramCache]: Analyzing trace with hash 235870035, now seen corresponding path program 1 times [2019-09-09 07:06:13,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 07:06:13,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:13,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 07:06:13,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:13,015 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 07:06:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 07:06:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 07:06:13,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 07:06:13,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-09 07:06:13,203 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 07:06:13,209 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-09 07:06:13,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-09 07:06:13,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-09 07:06:13,210 INFO L87 Difference]: Start difference. First operand 466 states and 692 transitions. Second operand 6 states. [2019-09-09 07:06:14,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 07:06:14,035 INFO L93 Difference]: Finished difference Result 935 states and 1399 transitions. [2019-09-09 07:06:14,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-09 07:06:14,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2019-09-09 07:06:14,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 07:06:14,044 INFO L225 Difference]: With dead ends: 935 [2019-09-09 07:06:14,045 INFO L226 Difference]: Without dead ends: 935 [2019-09-09 07:06:14,046 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-09 07:06:14,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2019-09-09 07:06:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 918. [2019-09-09 07:06:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-09-09 07:06:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1351 transitions. [2019-09-09 07:06:14,098 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1351 transitions. Word has length 130 [2019-09-09 07:06:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 07:06:14,099 INFO L475 AbstractCegarLoop]: Abstraction has 918 states and 1351 transitions. [2019-09-09 07:06:14,099 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-09 07:06:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1351 transitions. [2019-09-09 07:06:14,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-09-09 07:06:14,103 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 07:06:14,103 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 07:06:14,104 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 07:06:14,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 07:06:14,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1290355991, now seen corresponding path program 1 times [2019-09-09 07:06:14,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 07:06:14,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:14,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 07:06:14,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:14,106 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 07:06:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 07:06:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 07:06:14,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 07:06:14,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 07:06:14,248 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 07:06:14,249 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 07:06:14,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 07:06:14,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 07:06:14,250 INFO L87 Difference]: Start difference. First operand 918 states and 1351 transitions. Second operand 3 states. [2019-09-09 07:06:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 07:06:14,806 INFO L93 Difference]: Finished difference Result 1499 states and 2193 transitions. [2019-09-09 07:06:14,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 07:06:14,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-09-09 07:06:14,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 07:06:14,816 INFO L225 Difference]: With dead ends: 1499 [2019-09-09 07:06:14,816 INFO L226 Difference]: Without dead ends: 1499 [2019-09-09 07:06:14,817 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 07:06:14,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2019-09-09 07:06:14,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1209. [2019-09-09 07:06:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2019-09-09 07:06:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1768 transitions. [2019-09-09 07:06:14,860 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1768 transitions. Word has length 131 [2019-09-09 07:06:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 07:06:14,861 INFO L475 AbstractCegarLoop]: Abstraction has 1209 states and 1768 transitions. [2019-09-09 07:06:14,862 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 07:06:14,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1768 transitions. [2019-09-09 07:06:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-09-09 07:06:14,867 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 07:06:14,867 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 07:06:14,868 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 07:06:14,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 07:06:14,868 INFO L82 PathProgramCache]: Analyzing trace with hash 741521436, now seen corresponding path program 1 times [2019-09-09 07:06:14,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 07:06:14,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:14,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 07:06:14,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 07:06:14,870 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 07:06:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 07:06:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 07:06:15,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 07:06:15,009 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 07:06:15,010 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2019-09-09 07:06:15,012 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [91], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [182], [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], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [559], [561], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2019-09-09 07:06:15,084 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 07:06:15,085 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 07:08:05,214 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 07:08:05,218 INFO L272 AbstractInterpreter]: Visited 111 different actions 111 times. Never merged. Never widened. Performed 176 root evaluator evaluations with a maximum evaluation depth of 18. Performed 176 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Never found a fixpoint. Largest state had 38 variables. [2019-09-09 07:08:05,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 07:08:05,222 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 07:09:14,338 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: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.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:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.determineInductivity(AbsIntPredicateInterpolantSequenceWeakener.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.refinePreState(AbsIntPredicateInterpolantSequenceWeakener.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.refinePreState(AbsIntPredicateInterpolantSequenceWeakener.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.InterpolantSequenceWeakener.generateResult(InterpolantSequenceWeakener.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.InterpolantSequenceWeakener.(InterpolantSequenceWeakener.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.(AbsIntPredicateInterpolantSequenceWeakener.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.weakenPredicates(CegarAbsIntRunner.java:447) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.createInterpolantGenerator(CegarAbsIntRunner.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.getInterpolantGenerator(CegarAbsIntRunner.java:389) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.getInterpolantGenerator(CegarAbsIntRunner.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:384) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) 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) [2019-09-09 07:09:14,351 INFO L168 Benchmark]: Toolchain (without parser) took 185600.05 ms. Allocated memory was 133.7 MB in the beginning and 444.1 MB in the end (delta: 310.4 MB). Free memory was 88.7 MB in the beginning and 173.0 MB in the end (delta: -84.3 MB). Peak memory consumption was 226.1 MB. Max. memory is 7.1 GB. [2019-09-09 07:09:14,352 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 07:09:14,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.61 ms. Allocated memory was 133.7 MB in the beginning and 203.4 MB in the end (delta: 69.7 MB). Free memory was 88.5 MB in the beginning and 169.2 MB in the end (delta: -80.7 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2019-09-09 07:09:14,354 INFO L168 Benchmark]: Boogie Preprocessor took 133.73 ms. Allocated memory is still 203.4 MB. Free memory was 169.2 MB in the beginning and 163.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-09-09 07:09:14,356 INFO L168 Benchmark]: RCFGBuilder took 1218.07 ms. Allocated memory was 203.4 MB in the beginning and 229.6 MB in the end (delta: 26.2 MB). Free memory was 163.9 MB in the beginning and 182.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2019-09-09 07:09:14,360 INFO L168 Benchmark]: TraceAbstraction took 183459.51 ms. Allocated memory was 229.6 MB in the beginning and 444.1 MB in the end (delta: 214.4 MB). Free memory was 182.0 MB in the beginning and 173.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 223.5 MB. Max. memory is 7.1 GB. [2019-09-09 07:09:14,366 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 784.61 ms. Allocated memory was 133.7 MB in the beginning and 203.4 MB in the end (delta: 69.7 MB). Free memory was 88.5 MB in the beginning and 169.2 MB in the end (delta: -80.7 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.73 ms. Allocated memory is still 203.4 MB. Free memory was 169.2 MB in the beginning and 163.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1218.07 ms. Allocated memory was 203.4 MB in the beginning and 229.6 MB in the end (delta: 26.2 MB). Free memory was 163.9 MB in the beginning and 182.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 183459.51 ms. Allocated memory was 229.6 MB in the beginning and 444.1 MB in the end (delta: 214.4 MB). Free memory was 182.0 MB in the beginning and 173.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 223.5 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...