/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:57:44,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:57:44,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:57:44,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 23:57:44,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:57:44,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:57:44,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:57:44,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:57:44,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:57:44,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:57:44,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:57:44,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:57:44,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:57:44,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:57:44,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:57:44,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:57:44,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:57:44,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:57:44,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:57:44,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:57:44,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:57:44,776 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:57:44,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:57:44,776 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:57:44,776 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:57:44,777 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:57:44,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:57:44,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:57:44,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:57:44,777 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:57:44,778 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:57:44,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:57:44,778 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:57:44,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:57:44,779 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:57:44,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:57:44,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:57:44,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:57:44,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:57:44,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:57:44,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:57:44,780 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:57:44,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:57:44,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:57:44,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:57:44,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:57:44,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:57:44,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:57:44,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:57:44,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:57:44,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:57:44,782 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:57:44,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:57:44,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:57:44,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:57:44,783 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:57:45,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:57:45,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:57:45,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:57:45,069 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:57:45,069 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:57:45,070 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label30.c [2019-11-23 23:57:45,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafe6d437/bfc0378afb9e46f2b78da57cf20c19b4/FLAG56512bbb5 [2019-11-23 23:57:45,729 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:57:45,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label30.c [2019-11-23 23:57:45,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafe6d437/bfc0378afb9e46f2b78da57cf20c19b4/FLAG56512bbb5 [2019-11-23 23:57:45,937 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafe6d437/bfc0378afb9e46f2b78da57cf20c19b4 [2019-11-23 23:57:45,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:57:45,951 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:57:45,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:57:45,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:57:45,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:57:45,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:57:45" (1/1) ... [2019-11-23 23:57:45,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de7eecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:45, skipping insertion in model container [2019-11-23 23:57:45,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:57:45" (1/1) ... [2019-11-23 23:57:45,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:57:46,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:57:46,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:57:46,798 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:57:46,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:57:46,979 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:57:46,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46 WrapperNode [2019-11-23 23:57:46,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:57:46,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:57:46,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:57:46,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:57:46,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:57:47,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:57:47,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:57:47,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:57:47,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (1/1) ... [2019-11-23 23:57:47,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:57:47,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:57:47,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:57:47,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:57:47,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (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 [2019-11-23 23:57:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:57:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:59:29,374 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:59:29,374 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 23:59:29,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:29 BoogieIcfgContainer [2019-11-23 23:59:29,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:59:29,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:59:29,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:59:29,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:59:29,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:57:45" (1/3) ... [2019-11-23 23:59:29,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3223cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:29, skipping insertion in model container [2019-11-23 23:59:29,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:57:46" (2/3) ... [2019-11-23 23:59:29,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3223cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:29, skipping insertion in model container [2019-11-23 23:59:29,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:29" (3/3) ... [2019-11-23 23:59:29,384 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label30.c [2019-11-23 23:59:29,393 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:59:29,400 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:59:29,411 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:59:29,432 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:59:29,432 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:59:29,433 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:59:29,433 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:59:29,433 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:59:29,433 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:59:29,433 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:59:29,433 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:59:29,444 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-23 23:59:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-23 23:59:29,449 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:59:29,449 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-23 23:59:29,450 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:59:29,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:59:29,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1169210992, now seen corresponding path program 1 times [2019-11-23 23:59:29,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:59:29,461 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031760357] [2019-11-23 23:59:29,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:59:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:59:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:59:29,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031760357] [2019-11-23 23:59:29,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:59:29,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:59:29,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720773886] [2019-11-23 23:59:29,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:59:29,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:59:29,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:59:29,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:59:29,656 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-23 23:59:29,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:59:29,852 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2019-11-23 23:59:29,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:59:29,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-23 23:59:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:59:29,864 INFO L225 Difference]: With dead ends: 23 [2019-11-23 23:59:29,864 INFO L226 Difference]: Without dead ends: 11 [2019-11-23 23:59:29,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:59:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-23 23:59:29,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-23 23:59:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 23:59:29,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-23 23:59:29,907 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-11-23 23:59:29,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:59:29,907 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-23 23:59:29,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:59:29,908 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-23 23:59:29,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 23:59:29,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:59:29,909 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-23 23:59:29,909 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:59:29,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:59:29,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1007304739, now seen corresponding path program 1 times [2019-11-23 23:59:29,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:59:29,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741684361] [2019-11-23 23:59:29,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:59:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:59:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:59:30,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741684361] [2019-11-23 23:59:30,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440042874] [2019-11-23 23:59:30,794 INFO L94 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 [2019-11-23 23:59:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:59:30,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-23 23:59:30,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:59:30,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:30,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:30,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:30,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:30,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:30,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:30,996 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:30,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:30,999 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,001 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,002 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,004 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,007 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,037 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,041 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,066 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,068 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,104 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,116 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,119 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,127 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,151 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,197 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,202 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,203 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-23 23:59:31,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:59:31,216 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-23 23:59:31,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms