/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 21:11:17,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 21:11:17,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 21:11:17,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 21:11:17,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 21:11:17,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 21:11:17,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 21:11:17,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 21:11:17,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 21:11:17,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 21:11:17,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 21:11:17,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 21:11:17,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 21:11:17,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 21:11:17,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 21:11:17,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 21:11:17,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 21:11:17,494 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 [2019-11-23 21:11:17,508 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 21:11:17,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 21:11:17,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 21:11:17,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 21:11:17,510 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 21:11:17,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 21:11:17,510 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 21:11:17,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 21:11:17,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 21:11:17,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 21:11:17,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 21:11:17,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 21:11:17,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 21:11:17,512 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 21:11:17,512 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 21:11:17,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 21:11:17,512 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 21:11:17,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 21:11:17,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 21:11:17,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 21:11:17,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 21:11:17,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 21:11:17,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 21:11:17,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 21:11:17,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 21:11:17,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 21:11:17,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 21:11:17,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 21:11:17,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 21:11:17,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 21:11:17,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 21:11:17,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 21:11:17,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 21:11:17,827 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 21:11:17,828 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 21:11:17,829 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2019-11-23 21:11:17,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dc827ac/6a30f3326bfc47879c7832b949ac4c1e/FLAGc5b0f6c90 [2019-11-23 21:11:18,495 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 21:11:18,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2019-11-23 21:11:18,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dc827ac/6a30f3326bfc47879c7832b949ac4c1e/FLAGc5b0f6c90 [2019-11-23 21:11:18,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dc827ac/6a30f3326bfc47879c7832b949ac4c1e [2019-11-23 21:11:18,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 21:11:18,726 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 21:11:18,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 21:11:18,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 21:11:18,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 21:11:18,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:18" (1/1) ... [2019-11-23 21:11:18,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd8ab7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:18, skipping insertion in model container [2019-11-23 21:11:18,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:18" (1/1) ... [2019-11-23 21:11:18,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 21:11:18,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 21:11:19,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:11:19,377 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 21:11:19,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:11:19,542 INFO L208 MainTranslator]: Completed translation [2019-11-23 21:11:19,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19 WrapperNode [2019-11-23 21:11:19,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 21:11:19,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 21:11:19,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 21:11:19,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 21:11:19,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 21:11:19,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 21:11:19,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 21:11:19,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 21:11:19,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (1/1) ... [2019-11-23 21:11:19,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 21:11:19,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 21:11:19,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 21:11:19,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 21:11:19,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (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 [2019-11-23 21:11:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 21:11:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 21:11:21,672 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 21:11:21,672 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 21:11:21,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:21 BoogieIcfgContainer [2019-11-23 21:11:21,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 21:11:21,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 21:11:21,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 21:11:21,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 21:11:21,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:11:18" (1/3) ... [2019-11-23 21:11:21,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d21acc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:21, skipping insertion in model container [2019-11-23 21:11:21,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:19" (2/3) ... [2019-11-23 21:11:21,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d21acc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:21, skipping insertion in model container [2019-11-23 21:11:21,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:21" (3/3) ... [2019-11-23 21:11:21,685 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2019-11-23 21:11:21,694 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 21:11:21,702 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 21:11:21,713 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 21:11:21,754 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 21:11:21,754 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 21:11:21,754 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 21:11:21,754 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 21:11:21,754 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 21:11:21,755 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 21:11:21,755 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 21:11:21,756 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 21:11:21,780 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-11-23 21:11:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-23 21:11:21,788 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:21,789 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:21,790 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:21,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:21,795 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2019-11-23 21:11:21,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:21,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403845364] [2019-11-23 21:11:21,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:22,143 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 21:11:22,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403845364] [2019-11-23 21:11:22,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:11:22,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 21:11:22,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032179946] [2019-11-23 21:11:22,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 21:11:22,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:22,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 21:11:22,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 21:11:22,170 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-11-23 21:11:24,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:24,043 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2019-11-23 21:11:24,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 21:11:24,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2019-11-23 21:11:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:24,064 INFO L225 Difference]: With dead ends: 850 [2019-11-23 21:11:24,065 INFO L226 Difference]: Without dead ends: 538 [2019-11-23 21:11:24,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 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 21:11:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-23 21:11:24,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-23 21:11:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-23 21:11:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 796 transitions. [2019-11-23 21:11:24,150 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 796 transitions. Word has length 56 [2019-11-23 21:11:24,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:24,151 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 796 transitions. [2019-11-23 21:11:24,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 21:11:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 796 transitions. [2019-11-23 21:11:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-23 21:11:24,161 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:24,162 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:24,162 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:24,162 INFO L82 PathProgramCache]: Analyzing trace with hash 448247055, now seen corresponding path program 1 times [2019-11-23 21:11:24,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:24,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134137369] [2019-11-23 21:11:24,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 21:11:24,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134137369] [2019-11-23 21:11:24,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:11:24,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 21:11:24,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008361515] [2019-11-23 21:11:24,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 21:11:24,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:24,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 21:11:24,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 21:11:24,446 INFO L87 Difference]: Start difference. First operand 538 states and 796 transitions. Second operand 3 states. [2019-11-23 21:11:25,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:25,337 INFO L93 Difference]: Finished difference Result 1608 states and 2383 transitions. [2019-11-23 21:11:25,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 21:11:25,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-11-23 21:11:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:25,343 INFO L225 Difference]: With dead ends: 1608 [2019-11-23 21:11:25,343 INFO L226 Difference]: Without dead ends: 1072 [2019-11-23 21:11:25,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 21:11:25,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2019-11-23 21:11:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2019-11-23 21:11:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2019-11-23 21:11:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1462 transitions. [2019-11-23 21:11:25,407 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1462 transitions. Word has length 131 [2019-11-23 21:11:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:25,408 INFO L462 AbstractCegarLoop]: Abstraction has 1072 states and 1462 transitions. [2019-11-23 21:11:25,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 21:11:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1462 transitions. [2019-11-23 21:11:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-23 21:11:25,422 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:25,423 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:25,424 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:25,424 INFO L82 PathProgramCache]: Analyzing trace with hash -583227099, now seen corresponding path program 1 times [2019-11-23 21:11:25,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:25,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661879233] [2019-11-23 21:11:25,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-23 21:11:25,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661879233] [2019-11-23 21:11:25,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:11:25,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 21:11:25,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822948305] [2019-11-23 21:11:25,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 21:11:25,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:25,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 21:11:25,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 21:11:25,640 INFO L87 Difference]: Start difference. First operand 1072 states and 1462 transitions. Second operand 4 states. [2019-11-23 21:11:26,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:26,915 INFO L93 Difference]: Finished difference Result 3566 states and 4948 transitions. [2019-11-23 21:11:26,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 21:11:26,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2019-11-23 21:11:26,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:26,927 INFO L225 Difference]: With dead ends: 3566 [2019-11-23 21:11:26,928 INFO L226 Difference]: Without dead ends: 2496 [2019-11-23 21:11:26,929 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 21:11:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2019-11-23 21:11:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2019-11-23 21:11:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-11-23 21:11:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2948 transitions. [2019-11-23 21:11:26,979 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2948 transitions. Word has length 199 [2019-11-23 21:11:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:26,979 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2948 transitions. [2019-11-23 21:11:26,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 21:11:26,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2948 transitions. [2019-11-23 21:11:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-11-23 21:11:26,983 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:26,984 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:26,984 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:26,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:26,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1937191044, now seen corresponding path program 1 times [2019-11-23 21:11:26,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:26,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412801372] [2019-11-23 21:11:26,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 157 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-23 21:11:27,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412801372] [2019-11-23 21:11:27,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354795420] [2019-11-23 21:11:27,282 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 21:11:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:27,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-23 21:11:27,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-23 21:11:27,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 21:11:27,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-23 21:11:27,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983008453] [2019-11-23 21:11:27,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 21:11:27,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:27,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 21:11:27,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-23 21:11:27,625 INFO L87 Difference]: Start difference. First operand 2318 states and 2948 transitions. Second operand 4 states. [2019-11-23 21:11:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:28,563 INFO L93 Difference]: Finished difference Result 4692 states and 5982 transitions. [2019-11-23 21:11:28,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 21:11:28,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2019-11-23 21:11:28,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:28,575 INFO L225 Difference]: With dead ends: 4692 [2019-11-23 21:11:28,575 INFO L226 Difference]: Without dead ends: 2496 [2019-11-23 21:11:28,578 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-23 21:11:28,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2019-11-23 21:11:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2019-11-23 21:11:28,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-11-23 21:11:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2563 transitions. [2019-11-23 21:11:28,629 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2563 transitions. Word has length 244 [2019-11-23 21:11:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:28,631 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2563 transitions. [2019-11-23 21:11:28,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 21:11:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2563 transitions. [2019-11-23 21:11:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-11-23 21:11:28,639 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:28,639 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:28,852 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:28,853 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:28,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:28,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1316606823, now seen corresponding path program 1 times [2019-11-23 21:11:28,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:28,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457201169] [2019-11-23 21:11:28,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 284 proven. 65 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-23 21:11:29,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457201169] [2019-11-23 21:11:29,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791903647] [2019-11-23 21:11:29,736 INFO L94 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 [2019-11-23 21:11:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:29,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 21:11:29,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-11-23 21:11:30,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 21:11:30,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-23 21:11:30,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925084462] [2019-11-23 21:11:30,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 21:11:30,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:30,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 21:11:30,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:30,042 INFO L87 Difference]: Start difference. First operand 2318 states and 2563 transitions. Second operand 3 states. [2019-11-23 21:11:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:30,693 INFO L93 Difference]: Finished difference Result 5346 states and 5996 transitions. [2019-11-23 21:11:30,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 21:11:30,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2019-11-23 21:11:30,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:30,711 INFO L225 Difference]: With dead ends: 5346 [2019-11-23 21:11:30,711 INFO L226 Difference]: Without dead ends: 3208 [2019-11-23 21:11:30,715 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 338 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-23 21:11:30,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2019-11-23 21:11:30,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2019-11-23 21:11:30,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3578 transitions. [2019-11-23 21:11:30,789 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3578 transitions. Word has length 339 [2019-11-23 21:11:30,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:30,790 INFO L462 AbstractCegarLoop]: Abstraction has 3208 states and 3578 transitions. [2019-11-23 21:11:30,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 21:11:30,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3578 transitions. [2019-11-23 21:11:30,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2019-11-23 21:11:30,800 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:30,800 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:31,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:31,005 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:31,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1112080365, now seen corresponding path program 1 times [2019-11-23 21:11:31,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:31,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254006746] [2019-11-23 21:11:31,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 431 proven. 65 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2019-11-23 21:11:31,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254006746] [2019-11-23 21:11:31,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386081819] [2019-11-23 21:11:31,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:31,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-23 21:11:31,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2019-11-23 21:11:31,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 21:11:31,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2019-11-23 21:11:31,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435272182] [2019-11-23 21:11:31,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 21:11:31,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:31,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 21:11:31,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-23 21:11:31,902 INFO L87 Difference]: Start difference. First operand 3208 states and 3578 transitions. Second operand 4 states. [2019-11-23 21:11:33,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:33,100 INFO L93 Difference]: Finished difference Result 7668 states and 8599 transitions. [2019-11-23 21:11:33,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 21:11:33,100 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 417 [2019-11-23 21:11:33,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:33,120 INFO L225 Difference]: With dead ends: 7668 [2019-11-23 21:11:33,120 INFO L226 Difference]: Without dead ends: 4454 [2019-11-23 21:11:33,125 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 416 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-11-23 21:11:33,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2019-11-23 21:11:33,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4098. [2019-11-23 21:11:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2019-11-23 21:11:33,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4544 transitions. [2019-11-23 21:11:33,197 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4544 transitions. Word has length 417 [2019-11-23 21:11:33,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:33,198 INFO L462 AbstractCegarLoop]: Abstraction has 4098 states and 4544 transitions. [2019-11-23 21:11:33,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 21:11:33,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4544 transitions. [2019-11-23 21:11:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2019-11-23 21:11:33,208 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:33,208 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:33,412 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:33,412 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1492463541, now seen corresponding path program 1 times [2019-11-23 21:11:33,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:33,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736489980] [2019-11-23 21:11:33,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 443 proven. 65 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2019-11-23 21:11:33,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736489980] [2019-11-23 21:11:33,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775039482] [2019-11-23 21:11:33,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:34,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 21:11:34,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2019-11-23 21:11:34,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 21:11:34,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-23 21:11:34,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295554189] [2019-11-23 21:11:34,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 21:11:34,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:34,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 21:11:34,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:34,218 INFO L87 Difference]: Start difference. First operand 4098 states and 4544 transitions. Second operand 3 states. [2019-11-23 21:11:34,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:34,892 INFO L93 Difference]: Finished difference Result 8016 states and 8907 transitions. [2019-11-23 21:11:34,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 21:11:34,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 429 [2019-11-23 21:11:34,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:34,920 INFO L225 Difference]: With dead ends: 8016 [2019-11-23 21:11:34,920 INFO L226 Difference]: Without dead ends: 3742 [2019-11-23 21:11:34,928 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 428 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-11-23 21:11:34,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 2852. [2019-11-23 21:11:34,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2019-11-23 21:11:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3063 transitions. [2019-11-23 21:11:35,008 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3063 transitions. Word has length 429 [2019-11-23 21:11:35,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:35,009 INFO L462 AbstractCegarLoop]: Abstraction has 2852 states and 3063 transitions. [2019-11-23 21:11:35,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 21:11:35,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3063 transitions. [2019-11-23 21:11:35,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2019-11-23 21:11:35,037 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:35,038 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:35,252 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:35,252 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:35,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:35,253 INFO L82 PathProgramCache]: Analyzing trace with hash 838146228, now seen corresponding path program 1 times [2019-11-23 21:11:35,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:35,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294062485] [2019-11-23 21:11:35,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 458 proven. 65 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2019-11-23 21:11:36,350 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294062485] [2019-11-23 21:11:36,351 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703678514] [2019-11-23 21:11:36,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:36,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 21:11:36,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2019-11-23 21:11:36,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 21:11:36,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-23 21:11:36,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339908521] [2019-11-23 21:11:36,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 21:11:36,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:36,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 21:11:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:36,595 INFO L87 Difference]: Start difference. First operand 2852 states and 3063 transitions. Second operand 3 states. [2019-11-23 21:11:37,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:37,169 INFO L93 Difference]: Finished difference Result 3210 states and 3431 transitions. [2019-11-23 21:11:37,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 21:11:37,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 477 [2019-11-23 21:11:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:37,182 INFO L225 Difference]: With dead ends: 3210 [2019-11-23 21:11:37,182 INFO L226 Difference]: Without dead ends: 3208 [2019-11-23 21:11:37,183 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 476 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:37,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-23 21:11:37,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2019-11-23 21:11:37,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2019-11-23 21:11:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3063 transitions. [2019-11-23 21:11:37,232 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3063 transitions. Word has length 477 [2019-11-23 21:11:37,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:37,233 INFO L462 AbstractCegarLoop]: Abstraction has 2852 states and 3063 transitions. [2019-11-23 21:11:37,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 21:11:37,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3063 transitions. [2019-11-23 21:11:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2019-11-23 21:11:37,240 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:37,241 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:37,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:37,449 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:37,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:37,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1796043308, now seen corresponding path program 1 times [2019-11-23 21:11:37,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:37,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391259844] [2019-11-23 21:11:37,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 458 proven. 65 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2019-11-23 21:11:38,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391259844] [2019-11-23 21:11:38,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204207293] [2019-11-23 21:11:38,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:38,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-23 21:11:38,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2019-11-23 21:11:38,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 21:11:38,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-11-23 21:11:38,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511146272] [2019-11-23 21:11:38,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 21:11:38,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:38,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 21:11:38,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-23 21:11:38,818 INFO L87 Difference]: Start difference. First operand 2852 states and 3063 transitions. Second operand 7 states. [2019-11-23 21:11:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:39,802 INFO L93 Difference]: Finished difference Result 5574 states and 5994 transitions. [2019-11-23 21:11:39,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 21:11:39,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 486 [2019-11-23 21:11:39,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:39,812 INFO L225 Difference]: With dead ends: 5574 [2019-11-23 21:11:39,813 INFO L226 Difference]: Without dead ends: 3030 [2019-11-23 21:11:39,816 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 481 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-23 21:11:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2019-11-23 21:11:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2852. [2019-11-23 21:11:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2019-11-23 21:11:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3020 transitions. [2019-11-23 21:11:39,860 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3020 transitions. Word has length 486 [2019-11-23 21:11:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:39,860 INFO L462 AbstractCegarLoop]: Abstraction has 2852 states and 3020 transitions. [2019-11-23 21:11:39,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 21:11:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3020 transitions. [2019-11-23 21:11:39,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2019-11-23 21:11:39,869 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:39,869 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:11:40,072 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:40,073 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:40,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:40,073 INFO L82 PathProgramCache]: Analyzing trace with hash 23281686, now seen corresponding path program 1 times [2019-11-23 21:11:40,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:40,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884659348] [2019-11-23 21:11:40,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:41,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 825 proven. 4 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-11-23 21:11:41,013 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884659348] [2019-11-23 21:11:41,013 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085338015] [2019-11-23 21:11:41,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:41,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-23 21:11:41,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:41,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 21:11:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 806 proven. 23 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-11-23 21:11:42,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 21:11:42,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-23 21:11:42,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231310793] [2019-11-23 21:11:42,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-23 21:11:42,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:42,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-23 21:11:42,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:42,070 INFO L87 Difference]: Start difference. First operand 2852 states and 3020 transitions. Second operand 8 states. [2019-11-23 21:11:43,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:43,974 INFO L93 Difference]: Finished difference Result 5560 states and 5895 transitions. [2019-11-23 21:11:43,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-23 21:11:43,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 688 [2019-11-23 21:11:43,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:43,984 INFO L225 Difference]: With dead ends: 5560 [2019-11-23 21:11:43,984 INFO L226 Difference]: Without dead ends: 2888 [2019-11-23 21:11:43,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-11-23 21:11:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2019-11-23 21:11:44,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2674. [2019-11-23 21:11:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2019-11-23 21:11:44,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2836 transitions. [2019-11-23 21:11:44,024 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2836 transitions. Word has length 688 [2019-11-23 21:11:44,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:44,024 INFO L462 AbstractCegarLoop]: Abstraction has 2674 states and 2836 transitions. [2019-11-23 21:11:44,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-23 21:11:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2836 transitions. [2019-11-23 21:11:44,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 907 [2019-11-23 21:11:44,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:44,035 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 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, 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] [2019-11-23 21:11:44,239 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:44,239 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:44,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:44,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1141387390, now seen corresponding path program 1 times [2019-11-23 21:11:44,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:44,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656844300] [2019-11-23 21:11:44,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 1741 proven. 0 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2019-11-23 21:11:45,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656844300] [2019-11-23 21:11:45,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:11:45,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-23 21:11:45,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565996023] [2019-11-23 21:11:45,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-23 21:11:45,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:45,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-23 21:11:45,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-23 21:11:45,870 INFO L87 Difference]: Start difference. First operand 2674 states and 2836 transitions. Second operand 8 states. [2019-11-23 21:11:47,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:47,332 INFO L93 Difference]: Finished difference Result 5174 states and 5497 transitions. [2019-11-23 21:11:47,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 21:11:47,332 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 906 [2019-11-23 21:11:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:47,342 INFO L225 Difference]: With dead ends: 5174 [2019-11-23 21:11:47,343 INFO L226 Difference]: Without dead ends: 2680 [2019-11-23 21:11:47,346 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-11-23 21:11:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2019-11-23 21:11:47,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2674. [2019-11-23 21:11:47,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2019-11-23 21:11:47,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2831 transitions. [2019-11-23 21:11:47,377 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2831 transitions. Word has length 906 [2019-11-23 21:11:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:47,378 INFO L462 AbstractCegarLoop]: Abstraction has 2674 states and 2831 transitions. [2019-11-23 21:11:47,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-23 21:11:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2831 transitions. [2019-11-23 21:11:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2019-11-23 21:11:47,389 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:11:47,389 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-23 21:11:47,390 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:11:47,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:11:47,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1439738851, now seen corresponding path program 1 times [2019-11-23 21:11:47,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:11:47,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949696743] [2019-11-23 21:11:47,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:11:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 1906 proven. 155 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2019-11-23 21:11:48,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949696743] [2019-11-23 21:11:48,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792052469] [2019-11-23 21:11:48,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:11:48,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 21:11:48,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:11:48,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 1906 proven. 155 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2019-11-23 21:11:48,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 21:11:48,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-11-23 21:11:48,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259093654] [2019-11-23 21:11:48,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 21:11:48,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:11:48,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 21:11:48,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-23 21:11:48,928 INFO L87 Difference]: Start difference. First operand 2674 states and 2831 transitions. Second operand 5 states. [2019-11-23 21:11:50,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:11:50,191 INFO L93 Difference]: Finished difference Result 6056 states and 6417 transitions. [2019-11-23 21:11:50,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 21:11:50,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 932 [2019-11-23 21:11:50,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:11:50,193 INFO L225 Difference]: With dead ends: 6056 [2019-11-23 21:11:50,193 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 21:11:50,196 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 934 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-23 21:11:50,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 21:11:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 21:11:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 21:11:50,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 21:11:50,197 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 932 [2019-11-23 21:11:50,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:11:50,198 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 21:11:50,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 21:11:50,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 21:11:50,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 21:11:50,399 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:11:50,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 21:11:50,508 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 75 [2019-11-23 21:11:50,940 WARN L192 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2019-11-23 21:11:51,253 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2019-11-23 21:11:51,259 INFO L444 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-11-23 21:11:51,260 INFO L444 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-11-23 21:11:51,261 INFO L444 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,262 INFO L444 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-11-23 21:11:51,263 INFO L444 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-11-23 21:11:51,264 INFO L444 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-23 21:11:51,265 INFO L444 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,266 INFO L444 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-11-23 21:11:51,267 INFO L444 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-11-23 21:11:51,268 INFO L444 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2019-11-23 21:11:51,269 INFO L444 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-23 21:11:51,270 INFO L444 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,271 INFO L444 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-11-23 21:11:51,272 INFO L444 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-11-23 21:11:51,272 INFO L444 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2019-11-23 21:11:51,272 INFO L444 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-23 21:11:51,272 INFO L444 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-23 21:11:51,272 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-11-23 21:11:51,272 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-23 21:11:51,272 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 172) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2019-11-23 21:11:51,273 INFO L444 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,274 INFO L444 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-11-23 21:11:51,275 INFO L444 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-11-23 21:11:51,276 INFO L444 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-11-23 21:11:51,277 INFO L444 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-11-23 21:11:51,278 INFO L444 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-11-23 21:11:51,278 INFO L444 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,278 INFO L444 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,278 INFO L440 ceAbstractionStarter]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse0 (or (<= (+ ~a12~0 43) 0) (< 11 ~a12~0))) (.cse2 (<= ~a15~0 7)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1 (<= 9 ~a15~0)) (and .cse2 (<= (+ ~a12~0 49) 0)) (and (not (= ~a21~0 9)) .cse1) (and (<= ~a12~0 76) .cse0 .cse1) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) (= ~a15~0 8) .cse1 (<= ~a12~0 11)) (and (<= ~a12~0 80) .cse2 .cse1) (and .cse2 (<= 6 ~a15~0) .cse1))) [2019-11-23 21:11:51,278 INFO L444 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,279 INFO L444 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,280 INFO L447 ceAbstractionStarter]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-11-23 21:11:51,280 INFO L444 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-11-23 21:11:51,280 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-11-23 21:11:51,280 INFO L444 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2019-11-23 21:11:51,280 INFO L444 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2019-11-23 21:11:51,280 INFO L444 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-11-23 21:11:51,280 INFO L444 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-11-23 21:11:51,280 INFO L444 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-11-23 21:11:51,281 INFO L444 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-11-23 21:11:51,282 INFO L444 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,282 INFO L444 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,282 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-11-23 21:11:51,282 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,282 INFO L444 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-11-23 21:11:51,282 INFO L440 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (or (<= (+ ~a12~0 43) 0) (< 11 ~a12~0))) (.cse2 (<= ~a15~0 7)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1 (<= 9 ~a15~0)) (and .cse2 (<= (+ ~a12~0 49) 0)) (and (not (= ~a21~0 9)) .cse1) (and (<= ~a12~0 76) .cse0 .cse1) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) (= ~a15~0 8) .cse1 (<= ~a12~0 11)) (and (<= ~a12~0 80) .cse2 .cse1) (and .cse2 (<= 6 ~a15~0) .cse1))) [2019-11-23 21:11:51,282 INFO L444 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-11-23 21:11:51,283 INFO L444 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-11-23 21:11:51,284 INFO L444 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-11-23 21:11:51,285 INFO L444 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,286 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-11-23 21:11:51,287 INFO L444 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-23 21:11:51,288 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-11-23 21:11:51,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:11:51 BoogieIcfgContainer [2019-11-23 21:11:51,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 21:11:51,311 INFO L168 Benchmark]: Toolchain (without parser) took 32585.49 ms. Allocated memory was 145.2 MB in the beginning and 1.1 GB in the end (delta: 983.0 MB). Free memory was 101.6 MB in the beginning and 925.8 MB in the end (delta: -824.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2019-11-23 21:11:51,312 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-23 21:11:51,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.47 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 101.2 MB in the beginning and 168.2 MB in the end (delta: -67.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2019-11-23 21:11:51,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 163.58 ms. Allocated memory is still 206.6 MB. Free memory was 168.2 MB in the beginning and 158.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-23 21:11:51,314 INFO L168 Benchmark]: Boogie Preprocessor took 172.91 ms. Allocated memory is still 206.6 MB. Free memory was 157.8 MB in the beginning and 151.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2019-11-23 21:11:51,315 INFO L168 Benchmark]: RCFGBuilder took 1794.34 ms. Allocated memory was 206.6 MB in the beginning and 239.6 MB in the end (delta: 33.0 MB). Free memory was 151.6 MB in the beginning and 139.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2019-11-23 21:11:51,316 INFO L168 Benchmark]: TraceAbstraction took 29633.47 ms. Allocated memory was 239.6 MB in the beginning and 1.1 GB in the end (delta: 888.7 MB). Free memory was 139.8 MB in the beginning and 925.8 MB in the end (delta: -785.9 MB). Peak memory consumption was 950.6 MB. Max. memory is 7.1 GB. [2019-11-23 21:11:51,319 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 814.47 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 101.2 MB in the beginning and 168.2 MB in the end (delta: -67.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 163.58 ms. Allocated memory is still 206.6 MB. Free memory was 168.2 MB in the beginning and 158.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 172.91 ms. Allocated memory is still 206.6 MB. Free memory was 157.8 MB in the beginning and 151.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1794.34 ms. Allocated memory was 206.6 MB in the beginning and 239.6 MB in the end (delta: 33.0 MB). Free memory was 151.6 MB in the beginning and 139.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29633.47 ms. Allocated memory was 239.6 MB in the beginning and 1.1 GB in the end (delta: 888.7 MB). Free memory was 139.8 MB in the beginning and 925.8 MB in the end (delta: -785.9 MB). Peak memory consumption was 950.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 172]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((a12 + 43 <= 0 || 11 < a12) && a24 == 1) && 9 <= a15) || (a15 <= 7 && a12 + 49 <= 0)) || (!(a21 == 9) && a24 == 1)) || ((a12 <= 76 && (a12 + 43 <= 0 || 11 < a12)) && a24 == 1)) || (((!(5 == input) && a15 == 8) && a24 == 1) && a12 <= 11)) || ((a12 <= 80 && a15 <= 7) && a24 == 1)) || ((a15 <= 7 && 6 <= a15) && a24 == 1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((((a12 + 43 <= 0 || 11 < a12) && a24 == 1) && 9 <= a15) || (a15 <= 7 && a12 + 49 <= 0)) || (!(a21 == 9) && a24 == 1)) || ((a12 <= 76 && (a12 + 43 <= 0 || 11 < a12)) && a24 == 1)) || (((!(5 == input) && a15 == 8) && a24 == 1) && a12 <= 11)) || ((a12 <= 80 && a15 <= 7) && a24 == 1)) || ((a15 <= 7 && 6 <= a15) && a24 == 1) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 29.5s, OverallIterations: 12, TraceHistogramMax: 8, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, HoareTripleCheckerStatistics: 838 SDtfs, 2863 SDslu, 149 SDs, 0 SdLazy, 10051 SolverSat, 1161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4079 GetRequests, 4006 SyntacticMatches, 8 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4098occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 2356 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 60 NumberOfFragments, 169 HoareAnnotationTreeSize, 3 FomulaSimplifications, 12840 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1396 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 9316 NumberOfCodeBlocks, 9316 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 9296 ConstructedInterpolants, 0 QuantifiedInterpolants, 19525168 SizeOfPredicates, 17 NumberOfNonLiveVariables, 5044 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 16681/17347 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...