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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 03:29:52,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 03:29:52,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 03:29:52,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-07 03:29:53,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 03:29:53,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 03:29:53,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 03:29:53,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 03:29:53,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 03:29:53,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 03:29:53,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 03:29:53,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 03:29:53,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 03:29:53,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 03:29:53,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 03:29:53,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 03:29:53,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 03:29:53,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 03:29:53,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 03:29:53,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 03:29:53,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 03:29:53,077 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 03:29:53,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 03:29:53,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 03:29:53,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 03:29:53,080 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 03:29:53,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 03:29:53,080 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 03:29:53,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 03:29:53,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 03:29:53,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 03:29:53,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 03:29:53,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 03:29:53,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 03:29:53,081 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 03:29:53,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 03:29:53,082 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 03:29:53,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 03:29:53,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 03:29:53,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 03:29:53,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 03:29:53,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 03:29:53,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 03:29:53,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 03:29:53,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 03:29:53,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 03:29:53,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 03:29:53,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 03:29:53,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 03:29:53,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 03:29:53,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 03:29:53,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 03:29:53,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 03:29:53,374 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 03:29:53,374 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 03:29:53,375 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label17.c [2019-10-07 03:29:53,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049b34490/81311b28cb3742a0ac14a0bcc0b87793/FLAG8dcbdc1b5 [2019-10-07 03:29:54,080 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 03:29:54,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label17.c [2019-10-07 03:29:54,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049b34490/81311b28cb3742a0ac14a0bcc0b87793/FLAG8dcbdc1b5 [2019-10-07 03:29:54,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049b34490/81311b28cb3742a0ac14a0bcc0b87793 [2019-10-07 03:29:54,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 03:29:54,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 03:29:54,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 03:29:54,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 03:29:54,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 03:29:54,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:29:54" (1/1) ... [2019-10-07 03:29:54,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760969a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:54, skipping insertion in model container [2019-10-07 03:29:54,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:29:54" (1/1) ... [2019-10-07 03:29:54,307 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 03:29:54,389 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 03:29:55,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:29:55,255 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 03:29:55,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:29:55,555 INFO L192 MainTranslator]: Completed translation [2019-10-07 03:29:55,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55 WrapperNode [2019-10-07 03:29:55,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 03:29:55,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 03:29:55,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 03:29:55,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 03:29:55,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (1/1) ... [2019-10-07 03:29:55,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (1/1) ... [2019-10-07 03:29:55,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (1/1) ... [2019-10-07 03:29:55,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (1/1) ... [2019-10-07 03:29:55,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (1/1) ... [2019-10-07 03:29:55,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (1/1) ... [2019-10-07 03:29:55,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (1/1) ... [2019-10-07 03:29:55,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 03:29:55,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 03:29:55,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 03:29:55,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 03:29:55,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (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 [2019-10-07 03:29:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 03:29:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 03:29:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-07 03:29:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-07 03:29:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 03:29:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-07 03:29:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-07 03:29:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 03:29:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 03:29:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 03:29:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 03:29:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 03:29:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 03:30:04,080 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 03:30:04,083 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 03:30:04,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:04 BoogieIcfgContainer [2019-10-07 03:30:04,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 03:30:04,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 03:30:04,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 03:30:04,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 03:30:04,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:29:54" (1/3) ... [2019-10-07 03:30:04,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a9304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:04, skipping insertion in model container [2019-10-07 03:30:04,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:29:55" (2/3) ... [2019-10-07 03:30:04,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a9304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:04, skipping insertion in model container [2019-10-07 03:30:04,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:04" (3/3) ... [2019-10-07 03:30:04,101 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label17.c [2019-10-07 03:30:04,116 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 03:30:04,126 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 03:30:04,137 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 03:30:04,166 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 03:30:04,166 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 03:30:04,166 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 03:30:04,166 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 03:30:04,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 03:30:04,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 03:30:04,167 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 03:30:04,167 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 03:30:04,191 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2019-10-07 03:30:04,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 03:30:04,196 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:04,196 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:30:04,199 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:04,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:04,205 INFO L82 PathProgramCache]: Analyzing trace with hash 648055405, now seen corresponding path program 1 times [2019-10-07 03:30:04,214 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:04,214 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:04,215 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:04,215 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:30:04,478 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:04,479 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:30:04,479 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 03:30:04,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 03:30:04,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 03:30:04,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 03:30:04,504 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 4 states. [2019-10-07 03:30:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:30:10,658 INFO L93 Difference]: Finished difference Result 953 states and 1852 transitions. [2019-10-07 03:30:10,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 03:30:10,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-07 03:30:10,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:30:10,683 INFO L225 Difference]: With dead ends: 953 [2019-10-07 03:30:10,684 INFO L226 Difference]: Without dead ends: 702 [2019-10-07 03:30:10,692 INFO L606 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 [2019-10-07 03:30:10,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-07 03:30:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 691. [2019-10-07 03:30:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2019-10-07 03:30:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1133 transitions. [2019-10-07 03:30:10,788 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1133 transitions. Word has length 11 [2019-10-07 03:30:10,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:30:10,789 INFO L462 AbstractCegarLoop]: Abstraction has 691 states and 1133 transitions. [2019-10-07 03:30:10,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 03:30:10,789 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1133 transitions. [2019-10-07 03:30:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-07 03:30:10,791 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:10,792 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:30:10,792 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:10,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:10,792 INFO L82 PathProgramCache]: Analyzing trace with hash 975475452, now seen corresponding path program 1 times [2019-10-07 03:30:10,793 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:10,793 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:10,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:10,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:30:10,908 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:10,908 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:30:10,909 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 03:30:10,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 03:30:10,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 03:30:10,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 03:30:10,911 INFO L87 Difference]: Start difference. First operand 691 states and 1133 transitions. Second operand 4 states. [2019-10-07 03:30:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:30:16,300 INFO L93 Difference]: Finished difference Result 2743 states and 4570 transitions. [2019-10-07 03:30:16,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 03:30:16,303 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-10-07 03:30:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:30:16,316 INFO L225 Difference]: With dead ends: 2743 [2019-10-07 03:30:16,316 INFO L226 Difference]: Without dead ends: 2057 [2019-10-07 03:30:16,320 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 03:30:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2019-10-07 03:30:16,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 2050. [2019-10-07 03:30:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2050 states. [2019-10-07 03:30:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2991 transitions. [2019-10-07 03:30:16,443 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2991 transitions. Word has length 21 [2019-10-07 03:30:16,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:30:16,444 INFO L462 AbstractCegarLoop]: Abstraction has 2050 states and 2991 transitions. [2019-10-07 03:30:16,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 03:30:16,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2991 transitions. [2019-10-07 03:30:16,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-07 03:30:16,447 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:16,448 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:30:16,448 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:16,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:16,449 INFO L82 PathProgramCache]: Analyzing trace with hash 245259110, now seen corresponding path program 1 times [2019-10-07 03:30:16,449 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:16,449 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:16,449 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:16,449 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:16,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 03:30:16,607 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:16,607 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:30:16,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:30:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:16,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 03:30:16,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:30:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 03:30:16,797 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:30:16,917 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 03:30:16,918 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 03:30:16,919 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2019-10-07 03:30:16,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 03:30:16,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 03:30:16,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-07 03:30:16,921 INFO L87 Difference]: Start difference. First operand 2050 states and 2991 transitions. Second operand 5 states. [2019-10-07 03:30:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:30:19,758 INFO L93 Difference]: Finished difference Result 5484 states and 8290 transitions. [2019-10-07 03:30:19,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 03:30:19,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-10-07 03:30:19,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:30:19,780 INFO L225 Difference]: With dead ends: 5484 [2019-10-07 03:30:19,780 INFO L226 Difference]: Without dead ends: 3439 [2019-10-07 03:30:19,786 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-07 03:30:19,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2019-10-07 03:30:19,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 2779. [2019-10-07 03:30:19,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2779 states. [2019-10-07 03:30:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3901 transitions. [2019-10-07 03:30:19,884 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3901 transitions. Word has length 71 [2019-10-07 03:30:19,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:30:19,885 INFO L462 AbstractCegarLoop]: Abstraction has 2779 states and 3901 transitions. [2019-10-07 03:30:19,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 03:30:19,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3901 transitions. [2019-10-07 03:30:19,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 03:30:19,895 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:19,896 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:30:20,096 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:30:20,097 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:20,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1444759826, now seen corresponding path program 1 times [2019-10-07 03:30:20,098 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:20,098 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:20,099 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:20,099 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:20,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 03:30:20,387 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:20,387 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:30:20,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:30:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:20,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 03:30:20,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:30:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 03:30:20,626 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:30:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 03:30:20,702 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:30:20,732 INFO L162 IcfgInterpreter]: Started Sifa with 148 locations of interest [2019-10-07 03:30:20,733 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:30:20,739 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:30:20,748 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:30:20,748 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:30:20,891 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 56 for LOIs [2019-10-07 03:30:21,117 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2019-10-07 03:30:21,658 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8496 conjuctions. This might take some time... [2019-10-07 03:30:21,751 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 57 [2019-10-07 03:30:22,097 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8496 conjuctions. This might take some time... [2019-10-07 03:30:22,542 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:30:22,543 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) 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) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 03:30:22,552 INFO L168 Benchmark]: Toolchain (without parser) took 28265.16 ms. Allocated memory was 146.8 MB in the beginning and 459.8 MB in the end (delta: 313.0 MB). Free memory was 99.4 MB in the beginning and 88.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 324.4 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:22,556 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 03:30:22,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1270.93 ms. Allocated memory was 146.8 MB in the beginning and 210.2 MB in the end (delta: 63.4 MB). Free memory was 99.2 MB in the beginning and 121.6 MB in the end (delta: -22.3 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:22,558 INFO L168 Benchmark]: Boogie Preprocessor took 193.79 ms. Allocated memory is still 210.2 MB. Free memory was 121.6 MB in the beginning and 109.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:22,562 INFO L168 Benchmark]: RCFGBuilder took 8334.83 ms. Allocated memory was 210.2 MB in the beginning and 302.5 MB in the end (delta: 92.3 MB). Free memory was 108.6 MB in the beginning and 218.6 MB in the end (delta: -110.0 MB). Peak memory consumption was 119.8 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:22,563 INFO L168 Benchmark]: TraceAbstraction took 18460.01 ms. Allocated memory was 302.5 MB in the beginning and 459.8 MB in the end (delta: 157.3 MB). Free memory was 218.6 MB in the beginning and 88.0 MB in the end (delta: 130.6 MB). Peak memory consumption was 287.9 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:22,576 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 146.8 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1270.93 ms. Allocated memory was 146.8 MB in the beginning and 210.2 MB in the end (delta: 63.4 MB). Free memory was 99.2 MB in the beginning and 121.6 MB in the end (delta: -22.3 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 193.79 ms. Allocated memory is still 210.2 MB. Free memory was 121.6 MB in the beginning and 109.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8334.83 ms. Allocated memory was 210.2 MB in the beginning and 302.5 MB in the end (delta: 92.3 MB). Free memory was 108.6 MB in the beginning and 218.6 MB in the end (delta: -110.0 MB). Peak memory consumption was 119.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18460.01 ms. Allocated memory was 302.5 MB in the beginning and 459.8 MB in the end (delta: 157.3 MB). Free memory was 218.6 MB in the beginning and 88.0 MB in the end (delta: 130.6 MB). Peak memory consumption was 287.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true;: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...