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_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 03:30:16,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 03:30:16,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 03:30:16,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 03:30:16,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 03:30:16,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 03:30:16,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 03:30:16,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 03:30:16,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 03:30:16,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 03:30:16,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 03:30:16,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 03:30:16,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 03:30:16,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 03:30:16,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 03:30:16,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 03:30:16,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 03:30:16,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 03:30:16,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 03:30:16,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 03:30:16,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 03:30:16,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 03:30:16,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 03:30:16,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 03:30:16,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 03:30:16,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 03:30:16,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 03:30:16,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 03:30:16,650 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 03:30:16,668 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 03:30:16,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 03:30:16,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 03:30:16,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 03:30:16,671 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 03:30:16,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 03:30:16,671 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 03:30:16,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 03:30:16,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 03:30:16,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 03:30:16,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 03:30:16,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 03:30:16,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 03:30:16,674 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 03:30:16,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 03:30:16,674 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 03:30:16,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 03:30:16,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 03:30:16,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 03:30:16,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 03:30:16,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 03:30:16,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 03:30:16,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 03:30:16,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 03:30:16,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 03:30:16,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 03:30:16,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 03:30:16,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 03:30:16,677 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 03:30:16,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 03:30:16,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 03:30:16,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 03:30:16,968 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 03:30:16,968 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 03:30:16,969 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35.c [2019-10-07 03:30:17,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae5b7809/9815a030adee47bf9e9d5113879aa953/FLAGc30a03bf4 [2019-10-07 03:30:17,665 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 03:30:17,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label35.c [2019-10-07 03:30:17,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae5b7809/9815a030adee47bf9e9d5113879aa953/FLAGc30a03bf4 [2019-10-07 03:30:17,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae5b7809/9815a030adee47bf9e9d5113879aa953 [2019-10-07 03:30:17,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 03:30:17,892 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 03:30:17,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 03:30:17,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 03:30:17,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 03:30:17,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:30:17" (1/1) ... [2019-10-07 03:30:17,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462d39e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:17, skipping insertion in model container [2019-10-07 03:30:17,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:30:17" (1/1) ... [2019-10-07 03:30:17,909 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 03:30:17,986 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 03:30:18,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:30:18,861 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 03:30:19,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:30:19,185 INFO L192 MainTranslator]: Completed translation [2019-10-07 03:30:19,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19 WrapperNode [2019-10-07 03:30:19,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 03:30:19,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 03:30:19,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 03:30:19,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 03:30:19,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (1/1) ... [2019-10-07 03:30:19,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (1/1) ... [2019-10-07 03:30:19,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (1/1) ... [2019-10-07 03:30:19,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (1/1) ... [2019-10-07 03:30:19,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (1/1) ... [2019-10-07 03:30:19,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (1/1) ... [2019-10-07 03:30:19,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (1/1) ... [2019-10-07 03:30:19,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 03:30:19,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 03:30:19,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 03:30:19,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 03:30:19,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (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 03:30:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 03:30:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 03:30:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-07 03:30:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-07 03:30:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 03:30:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-07 03:30:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-07 03:30:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 03:30:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 03:30:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 03:30:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 03:30:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 03:30:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 03:30:36,110 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 03:30:36,111 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 03:30:36,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:36 BoogieIcfgContainer [2019-10-07 03:30:36,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 03:30:36,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 03:30:36,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 03:30:36,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 03:30:36,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:30:17" (1/3) ... [2019-10-07 03:30:36,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf03518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:36, skipping insertion in model container [2019-10-07 03:30:36,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:19" (2/3) ... [2019-10-07 03:30:36,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf03518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:36, skipping insertion in model container [2019-10-07 03:30:36,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:36" (3/3) ... [2019-10-07 03:30:36,199 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label35.c [2019-10-07 03:30:36,212 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 03:30:36,226 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 03:30:36,238 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 03:30:36,284 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 03:30:36,285 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 03:30:36,285 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 03:30:36,285 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 03:30:36,285 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 03:30:36,285 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 03:30:36,286 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 03:30:36,286 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 03:30:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2019-10-07 03:30:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 03:30:36,329 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:36,329 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:30:36,331 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:36,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:36,336 INFO L82 PathProgramCache]: Analyzing trace with hash 648048493, now seen corresponding path program 1 times [2019-10-07 03:30:36,345 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:36,345 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:36,346 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:36,346 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:36,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:36,604 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 03:30:36,605 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:36,606 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:30:36,606 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 03:30:36,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 03:30:36,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 03:30:36,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 03:30:36,628 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 4 states. [2019-10-07 03:30:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:30:40,609 INFO L93 Difference]: Finished difference Result 953 states and 1852 transitions. [2019-10-07 03:30:40,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 03:30:40,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-07 03:30:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:30:40,658 INFO L225 Difference]: With dead ends: 953 [2019-10-07 03:30:40,658 INFO L226 Difference]: Without dead ends: 702 [2019-10-07 03:30:40,673 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 03:30:40,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-07 03:30:40,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 430. [2019-10-07 03:30:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-07 03:30:40,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 821 transitions. [2019-10-07 03:30:40,810 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 821 transitions. Word has length 11 [2019-10-07 03:30:40,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:30:40,811 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 821 transitions. [2019-10-07 03:30:40,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 03:30:40,812 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 821 transitions. [2019-10-07 03:30:40,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-07 03:30:40,814 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:40,815 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 03:30:40,815 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:40,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:40,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2143491309, now seen corresponding path program 1 times [2019-10-07 03:30:40,817 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:40,818 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:40,818 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:40,818 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:40,990 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 03:30:40,991 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:40,991 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:30:40,991 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 03:30:40,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 03:30:40,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 03:30:40,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 03:30:40,995 INFO L87 Difference]: Start difference. First operand 430 states and 821 transitions. Second operand 4 states. [2019-10-07 03:30:46,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:30:46,660 INFO L93 Difference]: Finished difference Result 1699 states and 3298 transitions. [2019-10-07 03:30:46,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 03:30:46,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-10-07 03:30:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:30:46,669 INFO L225 Difference]: With dead ends: 1699 [2019-10-07 03:30:46,669 INFO L226 Difference]: Without dead ends: 1274 [2019-10-07 03:30:46,671 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 03:30:46,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2019-10-07 03:30:46,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1249. [2019-10-07 03:30:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1249 states. [2019-10-07 03:30:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 2074 transitions. [2019-10-07 03:30:46,735 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 2074 transitions. Word has length 21 [2019-10-07 03:30:46,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:30:46,736 INFO L462 AbstractCegarLoop]: Abstraction has 1249 states and 2074 transitions. [2019-10-07 03:30:46,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 03:30:46,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 2074 transitions. [2019-10-07 03:30:46,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-07 03:30:46,738 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:46,739 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] [2019-10-07 03:30:46,739 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:46,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:46,739 INFO L82 PathProgramCache]: Analyzing trace with hash 42067521, now seen corresponding path program 1 times [2019-10-07 03:30:46,740 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:46,740 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:46,741 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:46,741 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:46,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:46,869 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 03:30:46,869 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:46,869 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:30:46,869 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 03:30:46,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 03:30:46,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 03:30:46,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 03:30:46,871 INFO L87 Difference]: Start difference. First operand 1249 states and 2074 transitions. Second operand 5 states. [2019-10-07 03:30:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:30:50,675 INFO L93 Difference]: Finished difference Result 3799 states and 6456 transitions. [2019-10-07 03:30:50,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 03:30:50,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-10-07 03:30:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:30:50,707 INFO L225 Difference]: With dead ends: 3799 [2019-10-07 03:30:50,708 INFO L226 Difference]: Without dead ends: 2555 [2019-10-07 03:30:50,712 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 03:30:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2019-10-07 03:30:50,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2077. [2019-10-07 03:30:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2019-10-07 03:30:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 3109 transitions. [2019-10-07 03:30:50,813 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 3109 transitions. Word has length 38 [2019-10-07 03:30:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:30:50,814 INFO L462 AbstractCegarLoop]: Abstraction has 2077 states and 3109 transitions. [2019-10-07 03:30:50,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 03:30:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 3109 transitions. [2019-10-07 03:30:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-07 03:30:50,821 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:30:50,822 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:50,822 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:30:50,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:30:50,823 INFO L82 PathProgramCache]: Analyzing trace with hash -673927150, now seen corresponding path program 1 times [2019-10-07 03:30:50,823 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:30:50,823 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:50,823 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:50,823 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:30:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:30:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 03:30:51,171 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:30:51,171 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:30:51,171 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 03:30:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:30:51,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 03:30:51,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:30:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 03:30:51,401 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:30:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 03:30:51,520 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:30:51,557 INFO L162 IcfgInterpreter]: Started Sifa with 148 locations of interest [2019-10-07 03:30:51,557 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:30:51,565 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:30:51,574 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:30:51,575 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:30:51,765 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 56 for LOIs [2019-10-07 03:30:52,102 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 30 [2019-10-07 03:30:52,269 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5346 conjuctions. This might take some time... [2019-10-07 03:30:52,428 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 30 [2019-10-07 03:30:52,516 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5346 conjuctions. This might take some time... [2019-10-07 03:30:52,595 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 31 [2019-10-07 03:30:52,751 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 7224 conjuctions. This might take some time... [2019-10-07 03:30:52,857 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 31 [2019-10-07 03:30:52,968 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 7224 conjuctions. This might take some time... [2019-10-07 03:30:53,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:30:53,775 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 03:30:53,784 INFO L168 Benchmark]: Toolchain (without parser) took 35889.62 ms. Allocated memory was 137.9 MB in the beginning and 474.5 MB in the end (delta: 336.6 MB). Free memory was 97.7 MB in the beginning and 395.3 MB in the end (delta: -297.6 MB). Peak memory consumption was 358.2 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:53,786 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 03:30:53,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1293.59 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 97.5 MB in the beginning and 112.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:53,792 INFO L168 Benchmark]: Boogie Preprocessor took 211.55 ms. Allocated memory is still 206.0 MB. Free memory was 112.0 MB in the beginning and 99.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:53,794 INFO L168 Benchmark]: RCFGBuilder took 16713.64 ms. Allocated memory was 206.0 MB in the beginning and 298.3 MB in the end (delta: 92.3 MB). Free memory was 99.4 MB in the beginning and 73.5 MB in the end (delta: 25.9 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:53,795 INFO L168 Benchmark]: TraceAbstraction took 17665.55 ms. Allocated memory was 298.3 MB in the beginning and 474.5 MB in the end (delta: 176.2 MB). Free memory was 73.5 MB in the beginning and 395.3 MB in the end (delta: -321.7 MB). Peak memory consumption was 173.6 MB. Max. memory is 7.1 GB. [2019-10-07 03:30:53,811 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 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1293.59 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 97.5 MB in the beginning and 112.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 211.55 ms. Allocated memory is still 206.0 MB. Free memory was 112.0 MB in the beginning and 99.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16713.64 ms. Allocated memory was 206.0 MB in the beginning and 298.3 MB in the end (delta: 92.3 MB). Free memory was 99.4 MB in the beginning and 73.5 MB in the end (delta: 25.9 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17665.55 ms. Allocated memory was 298.3 MB in the beginning and 474.5 MB in the end (delta: 176.2 MB). Free memory was 73.5 MB in the beginning and 395.3 MB in the end (delta: -321.7 MB). Peak memory consumption was 173.6 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...