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/Problem18_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 03:46:16,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 03:46:16,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 03:46:16,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-07 03:46:16,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 03:46:16,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 03:46:16,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 03:46:16,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 03:46:16,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 03:46:16,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 03:46:16,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 03:46:16,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 03:46:16,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 03:46:16,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 03:46:16,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 03:46:16,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 03:46:16,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 03:46:16,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 03:46:16,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 03:46:16,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 03:46:16,504 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 03:46:16,530 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 03:46:16,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 03:46:16,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 03:46:16,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 03:46:16,533 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 03:46:16,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 03:46:16,534 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 03:46:16,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 03:46:16,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 03:46:16,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 03:46:16,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 03:46:16,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 03:46:16,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 03:46:16,536 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 03:46:16,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 03:46:16,537 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 03:46:16,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 03:46:16,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 03:46:16,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 03:46:16,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 03:46:16,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 03:46:16,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 03:46:16,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 03:46:16,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 03:46:16,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 03:46:16,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 03:46:16,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 03:46:16,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 03:46:16,540 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 03:46:16,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 03:46:16,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 03:46:16,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 03:46:16,854 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 03:46:16,855 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 03:46:16,856 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label48.c [2019-10-07 03:46:16,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80f5413e/7c60e1442b384714a3ffe73a4388d292/FLAG2a8bc74ee [2019-10-07 03:46:17,649 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 03:46:17,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label48.c [2019-10-07 03:46:17,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80f5413e/7c60e1442b384714a3ffe73a4388d292/FLAG2a8bc74ee [2019-10-07 03:46:17,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80f5413e/7c60e1442b384714a3ffe73a4388d292 [2019-10-07 03:46:17,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 03:46:17,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 03:46:17,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 03:46:17,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 03:46:17,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 03:46:17,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:46:17" (1/1) ... [2019-10-07 03:46:17,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760969a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:17, skipping insertion in model container [2019-10-07 03:46:17,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:46:17" (1/1) ... [2019-10-07 03:46:17,795 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 03:46:17,914 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 03:46:19,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:46:19,340 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 03:46:19,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:46:19,884 INFO L192 MainTranslator]: Completed translation [2019-10-07 03:46:19,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19 WrapperNode [2019-10-07 03:46:19,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 03:46:19,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 03:46:19,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 03:46:19,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 03:46:19,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (1/1) ... [2019-10-07 03:46:19,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (1/1) ... [2019-10-07 03:46:19,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (1/1) ... [2019-10-07 03:46:19,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (1/1) ... [2019-10-07 03:46:20,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (1/1) ... [2019-10-07 03:46:20,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (1/1) ... [2019-10-07 03:46:20,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (1/1) ... [2019-10-07 03:46:20,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 03:46:20,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 03:46:20,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 03:46:20,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 03:46:20,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (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 03:46:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 03:46:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 03:46:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-07 03:46:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-07 03:46:20,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-10-07 03:46:20,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 03:46:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-07 03:46:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-07 03:46:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-10-07 03:46:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 03:46:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 03:46:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 03:46:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 03:46:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 03:46:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 03:47:54,463 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 03:47:54,464 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 03:47:54,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:47:54 BoogieIcfgContainer [2019-10-07 03:47:54,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 03:47:54,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 03:47:54,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 03:47:54,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 03:47:54,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:46:17" (1/3) ... [2019-10-07 03:47:54,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4723d96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:47:54, skipping insertion in model container [2019-10-07 03:47:54,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:46:19" (2/3) ... [2019-10-07 03:47:54,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4723d96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:47:54, skipping insertion in model container [2019-10-07 03:47:54,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:47:54" (3/3) ... [2019-10-07 03:47:54,474 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label48.c [2019-10-07 03:47:54,484 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 03:47:54,492 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 03:47:54,504 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 03:47:54,534 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 03:47:54,535 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 03:47:54,535 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 03:47:54,535 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 03:47:54,535 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 03:47:54,536 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 03:47:54,536 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 03:47:54,536 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 03:47:54,565 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states. [2019-10-07 03:47:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 03:47:54,571 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:47:54,572 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:47:54,574 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:47:54,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:47:54,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1816951206, now seen corresponding path program 1 times [2019-10-07 03:47:54,590 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:47:54,590 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:47:54,590 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:47:54,591 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:47:54,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:47:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:47:54,892 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 03:47:54,895 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:47:54,896 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:47:54,896 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 03:47:54,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 03:47:54,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 03:47:54,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 03:47:54,919 INFO L87 Difference]: Start difference. First operand 469 states. Second operand 3 states. [2019-10-07 03:47:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:47:58,296 INFO L93 Difference]: Finished difference Result 1393 states and 2727 transitions. [2019-10-07 03:47:58,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 03:47:58,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-07 03:47:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:47:58,326 INFO L225 Difference]: With dead ends: 1393 [2019-10-07 03:47:58,326 INFO L226 Difference]: Without dead ends: 921 [2019-10-07 03:47:58,336 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 03:47:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2019-10-07 03:47:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 882. [2019-10-07 03:47:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2019-10-07 03:47:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1706 transitions. [2019-10-07 03:47:58,451 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1706 transitions. Word has length 11 [2019-10-07 03:47:58,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:47:58,452 INFO L462 AbstractCegarLoop]: Abstraction has 882 states and 1706 transitions. [2019-10-07 03:47:58,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 03:47:58,452 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1706 transitions. [2019-10-07 03:47:58,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-07 03:47:58,455 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:47:58,455 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] [2019-10-07 03:47:58,455 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:47:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:47:58,456 INFO L82 PathProgramCache]: Analyzing trace with hash 391577626, now seen corresponding path program 1 times [2019-10-07 03:47:58,456 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:47:58,457 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:47:58,457 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:47:58,457 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:47:58,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:47:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:47:58,618 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 03:47:58,618 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:47:58,619 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:47:58,619 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 03:47:58,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 03:47:58,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 03:47:58,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-07 03:47:58,622 INFO L87 Difference]: Start difference. First operand 882 states and 1706 transitions. Second operand 6 states. [2019-10-07 03:48:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:48:04,518 INFO L93 Difference]: Finished difference Result 2667 states and 5200 transitions. [2019-10-07 03:48:04,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 03:48:04,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-10-07 03:48:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:48:04,537 INFO L225 Difference]: With dead ends: 2667 [2019-10-07 03:48:04,537 INFO L226 Difference]: Without dead ends: 1790 [2019-10-07 03:48:04,541 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-07 03:48:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2019-10-07 03:48:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1769. [2019-10-07 03:48:04,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1769 states. [2019-10-07 03:48:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 3310 transitions. [2019-10-07 03:48:04,819 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 3310 transitions. Word has length 41 [2019-10-07 03:48:04,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:48:04,819 INFO L462 AbstractCegarLoop]: Abstraction has 1769 states and 3310 transitions. [2019-10-07 03:48:04,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 03:48:04,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 3310 transitions. [2019-10-07 03:48:04,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 03:48:04,821 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:48:04,822 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] [2019-10-07 03:48:04,822 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:48:04,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:48:04,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1704244139, now seen corresponding path program 1 times [2019-10-07 03:48:04,823 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:48:04,824 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:48:04,824 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:48:04,824 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:48:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:48:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:48:04,932 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 03:48:04,933 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:48:04,933 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:48:04,933 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 03:48:04,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 03:48:04,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 03:48:04,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 03:48:04,935 INFO L87 Difference]: Start difference. First operand 1769 states and 3310 transitions. Second operand 6 states. [2019-10-07 03:48:13,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:48:13,728 INFO L93 Difference]: Finished difference Result 7211 states and 14242 transitions. [2019-10-07 03:48:13,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 03:48:13,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2019-10-07 03:48:13,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:48:13,773 INFO L225 Difference]: With dead ends: 7211 [2019-10-07 03:48:13,773 INFO L226 Difference]: Without dead ends: 5447 [2019-10-07 03:48:13,782 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-10-07 03:48:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2019-10-07 03:48:13,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 5157. [2019-10-07 03:48:14,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5157 states. [2019-10-07 03:48:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 8443 transitions. [2019-10-07 03:48:14,024 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 8443 transitions. Word has length 42 [2019-10-07 03:48:14,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:48:14,024 INFO L462 AbstractCegarLoop]: Abstraction has 5157 states and 8443 transitions. [2019-10-07 03:48:14,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 03:48:14,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 8443 transitions. [2019-10-07 03:48:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 03:48:14,037 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:48:14,038 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-07 03:48:14,038 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:48:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:48:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -833504211, now seen corresponding path program 1 times [2019-10-07 03:48:14,039 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:48:14,039 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:48:14,039 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:48:14,039 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:48:14,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:48:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:48:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 03:48:14,150 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:48:14,150 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:48:14,150 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 03:48:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:48:14,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 03:48:14,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:48:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 03:48:14,335 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:48:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 03:48:14,405 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 03:48:14,405 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2019-10-07 03:48:14,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 03:48:14,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 03:48:14,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-10-07 03:48:14,406 INFO L87 Difference]: Start difference. First operand 5157 states and 8443 transitions. Second operand 5 states. [2019-10-07 03:48:18,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:48:18,501 INFO L93 Difference]: Finished difference Result 14036 states and 24415 transitions. [2019-10-07 03:48:18,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 03:48:18,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-07 03:48:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:48:18,549 INFO L225 Difference]: With dead ends: 14036 [2019-10-07 03:48:18,549 INFO L226 Difference]: Without dead ends: 8884 [2019-10-07 03:48:18,568 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-10-07 03:48:18,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8884 states. [2019-10-07 03:48:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8884 to 7213. [2019-10-07 03:48:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7213 states. [2019-10-07 03:48:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 10820 transitions. [2019-10-07 03:48:18,846 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 10820 transitions. Word has length 52 [2019-10-07 03:48:18,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:48:18,847 INFO L462 AbstractCegarLoop]: Abstraction has 7213 states and 10820 transitions. [2019-10-07 03:48:18,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 03:48:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 10820 transitions. [2019-10-07 03:48:18,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 03:48:18,853 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:48:18,854 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:19,058 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:48:19,059 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:48:19,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:48:19,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1830836946, now seen corresponding path program 1 times [2019-10-07 03:48:19,060 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:48:19,060 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:48:19,060 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:48:19,060 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:48:19,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:48:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:48:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-07 03:48:19,274 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:48:19,275 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:48:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:48:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:48:19,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 03:48:19,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:48:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 03:48:19,437 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:48:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-07 03:48:19,516 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:48:19,548 INFO L162 IcfgInterpreter]: Started Sifa with 70 locations of interest [2019-10-07 03:48:19,548 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:48:19,556 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:48:19,565 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:48:19,566 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:48:19,758 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 49 for LOIs [2019-10-07 03:48:19,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 48 [2019-10-07 03:48:20,167 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 48 [2019-10-07 03:48:20,362 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2019-10-07 03:48:20,379 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2019-10-07 03:48:20,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:48:20,673 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 03:48:20,680 INFO L168 Benchmark]: Toolchain (without parser) took 122900.73 ms. Allocated memory was 144.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 92.2 MB in the beginning and 497.5 MB in the end (delta: -405.3 MB). Peak memory consumption was 688.9 MB. Max. memory is 7.1 GB. [2019-10-07 03:48:20,682 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 03:48:20,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2106.76 ms. Allocated memory was 144.2 MB in the beginning and 229.6 MB in the end (delta: 85.5 MB). Free memory was 92.0 MB in the beginning and 105.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2019-10-07 03:48:20,684 INFO L168 Benchmark]: Boogie Preprocessor took 295.46 ms. Allocated memory was 229.6 MB in the beginning and 258.5 MB in the end (delta: 28.8 MB). Free memory was 105.7 MB in the beginning and 208.5 MB in the end (delta: -102.8 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2019-10-07 03:48:20,685 INFO L168 Benchmark]: RCFGBuilder took 94283.53 ms. Allocated memory was 258.5 MB in the beginning and 967.3 MB in the end (delta: 708.8 MB). Free memory was 208.5 MB in the beginning and 399.0 MB in the end (delta: -190.5 MB). Peak memory consumption was 784.4 MB. Max. memory is 7.1 GB. [2019-10-07 03:48:20,689 INFO L168 Benchmark]: TraceAbstraction took 26210.02 ms. Allocated memory was 967.3 MB in the beginning and 1.2 GB in the end (delta: 271.1 MB). Free memory was 399.0 MB in the beginning and 497.5 MB in the end (delta: -98.5 MB). Peak memory consumption was 172.5 MB. Max. memory is 7.1 GB. [2019-10-07 03:48:20,693 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2106.76 ms. Allocated memory was 144.2 MB in the beginning and 229.6 MB in the end (delta: 85.5 MB). Free memory was 92.0 MB in the beginning and 105.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 295.46 ms. Allocated memory was 229.6 MB in the beginning and 258.5 MB in the end (delta: 28.8 MB). Free memory was 105.7 MB in the beginning and 208.5 MB in the end (delta: -102.8 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 94283.53 ms. Allocated memory was 258.5 MB in the beginning and 967.3 MB in the end (delta: 708.8 MB). Free memory was 208.5 MB in the beginning and 399.0 MB in the end (delta: -190.5 MB). Peak memory consumption was 784.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26210.02 ms. Allocated memory was 967.3 MB in the beginning and 1.2 GB in the end (delta: 271.1 MB). Free memory was 399.0 MB in the beginning and 497.5 MB in the end (delta: -98.5 MB). Peak memory consumption was 172.5 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...