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/Problem02_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:58:16,881 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-07 00:58:16,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:58:16,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:58:16,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:58:16,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:58:16,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:58:16,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:58:16,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:58:16,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:58:16,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:58:16,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:58:16,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:58:16,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:58:16,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:58:16,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:58:16,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:58:16,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:58:16,949 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 00:58:16,962 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:58:16,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:58:16,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:58:16,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:58:16,964 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:58:16,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:58:16,964 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:58:16,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:58:16,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:58:16,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:58:16,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:58:16,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:58:16,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:58:16,966 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:58:16,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:58:16,966 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:58:16,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:58:16,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:58:16,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:58:16,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:58:16,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:58:16,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:58:16,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:58:16,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:58:16,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:58:16,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:58:16,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:58:16,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:58:16,969 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 00:58:17,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:58:17,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:58:17,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:58:17,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:58:17,262 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:58:17,262 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label48.c [2019-10-07 00:58:17,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a24c1bda/5e568e52f05f44ea838146997d6b1c92/FLAG9563382dc [2019-10-07 00:58:17,915 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:58:17,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label48.c [2019-10-07 00:58:17,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a24c1bda/5e568e52f05f44ea838146997d6b1c92/FLAG9563382dc [2019-10-07 00:58:18,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a24c1bda/5e568e52f05f44ea838146997d6b1c92 [2019-10-07 00:58:18,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:58:18,147 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:58:18,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:58:18,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:58:18,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:58:18,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c32c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18, skipping insertion in model container [2019-10-07 00:58:18,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,162 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:58:18,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:58:18,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:58:18,701 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:58:18,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:58:18,841 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:58:18,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18 WrapperNode [2019-10-07 00:58:18,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:58:18,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:58:18,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:58:18,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:58:18,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (1/1) ... [2019-10-07 00:58:18,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:58:18,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:58:18,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:58:18,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:58:18,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (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 00:58:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:58:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:58:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-07 00:58:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:58:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-07 00:58:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:58:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:58:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 00:58:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:58:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:58:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:58:20,943 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:58:20,945 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 00:58:20,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:58:20 BoogieIcfgContainer [2019-10-07 00:58:20,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:58:20,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:58:20,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:58:20,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:58:20,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:58:18" (1/3) ... [2019-10-07 00:58:20,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dec9ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:58:20, skipping insertion in model container [2019-10-07 00:58:20,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:18" (2/3) ... [2019-10-07 00:58:20,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dec9ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:58:20, skipping insertion in model container [2019-10-07 00:58:20,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:58:20" (3/3) ... [2019-10-07 00:58:20,965 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label48.c [2019-10-07 00:58:20,974 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:58:20,983 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:58:20,994 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:58:21,033 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:58:21,033 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:58:21,036 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:58:21,036 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:58:21,036 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:58:21,037 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:58:21,037 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:58:21,037 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:58:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-07 00:58:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-07 00:58:21,072 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:58:21,073 INFO L385 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] [2019-10-07 00:58:21,075 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:58:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:58:21,080 INFO L82 PathProgramCache]: Analyzing trace with hash -219356105, now seen corresponding path program 1 times [2019-10-07 00:58:21,087 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:58:21,088 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:21,088 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:21,088 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:21,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:58:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:58:21,471 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 00:58:21,471 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:21,472 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:58:21,473 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:58:21,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:58:21,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:58:21,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:58:21,496 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-07 00:58:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:58:22,154 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-07 00:58:22,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:58:22,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-07 00:58:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:58:22,170 INFO L225 Difference]: With dead ends: 273 [2019-10-07 00:58:22,171 INFO L226 Difference]: Without dead ends: 175 [2019-10-07 00:58:22,174 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:58:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-07 00:58:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-07 00:58:22,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-07 00:58:22,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 312 transitions. [2019-10-07 00:58:22,235 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 312 transitions. Word has length 86 [2019-10-07 00:58:22,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:58:22,236 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 312 transitions. [2019-10-07 00:58:22,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:58:22,237 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 312 transitions. [2019-10-07 00:58:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-07 00:58:22,242 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:58:22,242 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:58:22,243 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:58:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:58:22,243 INFO L82 PathProgramCache]: Analyzing trace with hash -701890884, now seen corresponding path program 1 times [2019-10-07 00:58:22,243 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:58:22,244 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:22,244 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:22,244 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:22,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:58:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:58:22,352 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 00:58:22,353 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:22,353 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:58:22,353 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:58:22,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:58:22,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:58:22,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:58:22,356 INFO L87 Difference]: Start difference. First operand 175 states and 312 transitions. Second operand 3 states. [2019-10-07 00:58:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:58:22,780 INFO L93 Difference]: Finished difference Result 513 states and 937 transitions. [2019-10-07 00:58:22,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:58:22,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-10-07 00:58:22,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:58:22,790 INFO L225 Difference]: With dead ends: 513 [2019-10-07 00:58:22,791 INFO L226 Difference]: Without dead ends: 343 [2019-10-07 00:58:22,793 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:58:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-07 00:58:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-07 00:58:22,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-07 00:58:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 580 transitions. [2019-10-07 00:58:22,845 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 580 transitions. Word has length 94 [2019-10-07 00:58:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:58:22,846 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 580 transitions. [2019-10-07 00:58:22,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:58:22,846 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 580 transitions. [2019-10-07 00:58:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-07 00:58:22,862 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:58:22,862 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 00:58:22,863 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:58:22,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:58:22,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1247425288, now seen corresponding path program 1 times [2019-10-07 00:58:22,863 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:58:22,864 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:22,864 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:22,865 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:22,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:58:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:58:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:58:23,033 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:23,034 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:58:23,034 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 00:58:23,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 00:58:23,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 00:58:23,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:58:23,036 INFO L87 Difference]: Start difference. First operand 343 states and 580 transitions. Second operand 4 states. [2019-10-07 00:58:23,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:58:23,628 INFO L93 Difference]: Finished difference Result 1269 states and 2248 transitions. [2019-10-07 00:58:23,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 00:58:23,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2019-10-07 00:58:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:58:23,638 INFO L225 Difference]: With dead ends: 1269 [2019-10-07 00:58:23,638 INFO L226 Difference]: Without dead ends: 931 [2019-10-07 00:58:23,641 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 00:58:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2019-10-07 00:58:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2019-10-07 00:58:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2019-10-07 00:58:23,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1426 transitions. [2019-10-07 00:58:23,703 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1426 transitions. Word has length 100 [2019-10-07 00:58:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:58:23,709 INFO L462 AbstractCegarLoop]: Abstraction has 931 states and 1426 transitions. [2019-10-07 00:58:23,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 00:58:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1426 transitions. [2019-10-07 00:58:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 00:58:23,719 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:58:23,719 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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] [2019-10-07 00:58:23,720 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:58:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:58:23,720 INFO L82 PathProgramCache]: Analyzing trace with hash 483709707, now seen corresponding path program 1 times [2019-10-07 00:58:23,720 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:58:23,721 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:23,721 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:23,721 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:58:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:58:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:58:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 123 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:58:24,043 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:58:24,043 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:58:24,043 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 00:58:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:58:24,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 00:58:24,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:58:24,316 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 00:58:24,317 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:58:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 00:58:24,545 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:58:24,599 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-07 00:58:24,599 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:58:24,605 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:58:24,618 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:58:24,618 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:58:24,922 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 89 for LOIs [2019-10-07 00:58:25,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:58:25,508 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 00:58:25,515 INFO L168 Benchmark]: Toolchain (without parser) took 7366.77 ms. Allocated memory was 145.8 MB in the beginning and 337.1 MB in the end (delta: 191.4 MB). Free memory was 102.7 MB in the beginning and 134.8 MB in the end (delta: -32.2 MB). Peak memory consumption was 159.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:58:25,516 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 00:58:25,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.91 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 102.2 MB in the beginning and 171.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2019-10-07 00:58:25,520 INFO L168 Benchmark]: Boogie Preprocessor took 124.71 ms. Allocated memory is still 205.0 MB. Free memory was 171.6 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-07 00:58:25,521 INFO L168 Benchmark]: RCFGBuilder took 1979.21 ms. Allocated memory was 205.0 MB in the beginning and 250.6 MB in the end (delta: 45.6 MB). Free memory was 166.6 MB in the beginning and 195.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:58:25,522 INFO L168 Benchmark]: TraceAbstraction took 4564.06 ms. Allocated memory was 250.6 MB in the beginning and 337.1 MB in the end (delta: 86.5 MB). Free memory was 195.6 MB in the beginning and 134.8 MB in the end (delta: 60.7 MB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:58:25,533 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.91 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 102.2 MB in the beginning and 171.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.71 ms. Allocated memory is still 205.0 MB. Free memory was 171.6 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1979.21 ms. Allocated memory was 205.0 MB in the beginning and 250.6 MB in the end (delta: 45.6 MB). Free memory was 166.6 MB in the beginning and 195.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4564.06 ms. Allocated memory was 250.6 MB in the beginning and 337.1 MB in the end (delta: 86.5 MB). Free memory was 195.6 MB in the beginning and 134.8 MB in the end (delta: 60.7 MB). Peak memory consumption was 147.2 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...