java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 11:58:41,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 11:58:41,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 11:58:41,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 11:58:41,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 11:58:41,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 11:58:41,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 11:58:41,567 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 11:58:41,569 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 11:58:41,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 11:58:41,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 11:58:41,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 11:58:41,573 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 11:58:41,574 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 11:58:41,575 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 11:58:41,577 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 11:58:41,577 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 11:58:41,580 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 11:58:41,591 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 11:58:41,593 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 11:58:41,594 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 11:58:41,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 11:58:41,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-22 11:58:41,617 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 11:58:41,642 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 11:58:41,642 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 11:58:41,643 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 11:58:41,643 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 11:58:41,645 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 11:58:41,645 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 11:58:41,645 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 11:58:41,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 11:58:41,645 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 11:58:41,646 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 11:58:41,646 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 11:58:41,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 11:58:41,646 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 11:58:41,646 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 11:58:41,646 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 11:58:41,647 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 11:58:41,647 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 11:58:41,647 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 11:58:41,647 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 11:58:41,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 11:58:41,648 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 11:58:41,649 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 11:58:41,649 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 11:58:41,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 11:58:41,650 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 11:58:41,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 11:58:41,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 11:58:41,650 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 11:58:41,650 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 11:58:41,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 11:58:41,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 11:58:41,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 11:58:41,724 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 11:58:41,724 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 11:58:41,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c [2018-07-22 11:58:42,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/44d2a19a4/b3b4acabd96b413d9ef596b399b0055d/FLAG5418374e7 [2018-07-22 11:58:42,695 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 11:58:42,696 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c [2018-07-22 11:58:42,760 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/44d2a19a4/b3b4acabd96b413d9ef596b399b0055d/FLAG5418374e7 [2018-07-22 11:58:42,781 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/44d2a19a4/b3b4acabd96b413d9ef596b399b0055d [2018-07-22 11:58:42,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 11:58:42,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 11:58:42,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 11:58:42,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 11:58:42,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 11:58:42,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:58:42" (1/1) ... [2018-07-22 11:58:42,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5fd596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:42, skipping insertion in model container [2018-07-22 11:58:42,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:58:42" (1/1) ... [2018-07-22 11:58:43,197 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 11:58:44,305 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 11:58:44,323 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 11:58:45,132 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 11:58:45,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45 WrapperNode [2018-07-22 11:58:45,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 11:58:45,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 11:58:45,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 11:58:45,396 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 11:58:45,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:45,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:45,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 11:58:45,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 11:58:45,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 11:58:45,803 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 11:58:45,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:45,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:45,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:45,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:47,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:47,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:47,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... [2018-07-22 11:58:47,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 11:58:47,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 11:58:47,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 11:58:47,194 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 11:58:47,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (1/1) ... No working directory specified, using /storage/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 [2018-07-22 11:58:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 11:58:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 11:58:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 11:58:56,833 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 11:58:56,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:58:56 BoogieIcfgContainer [2018-07-22 11:58:56,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 11:58:56,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 11:58:56,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 11:58:56,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 11:58:56,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:58:42" (1/3) ... [2018-07-22 11:58:56,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e687c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:58:56, skipping insertion in model container [2018-07-22 11:58:56,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:58:45" (2/3) ... [2018-07-22 11:58:56,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e687c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:58:56, skipping insertion in model container [2018-07-22 11:58:56,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:58:56" (3/3) ... [2018-07-22 11:58:56,843 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label36_true-unreach-call.c [2018-07-22 11:58:56,854 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 11:58:56,868 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 11:58:56,940 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 11:58:56,941 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 11:58:56,941 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 11:58:56,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 11:58:56,941 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 11:58:56,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 11:58:56,941 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 11:58:56,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 11:58:56,942 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 11:58:56,988 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-22 11:58:56,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-22 11:58:56,997 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 11:58:56,998 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 11:58:56,998 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 11:58:57,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1482679290, now seen corresponding path program 1 times [2018-07-22 11:58:57,006 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 11:58:57,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 11:58:57,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:58:57,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:58:57,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:58:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:58:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 11:58:57,513 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 11:58:57,513 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 11:58:57,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 11:58:57,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 11:58:57,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 11:58:57,535 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-07-22 11:59:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 11:59:07,862 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-07-22 11:59:07,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 11:59:07,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-07-22 11:59:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 11:59:07,899 INFO L225 Difference]: With dead ends: 3146 [2018-07-22 11:59:07,899 INFO L226 Difference]: Without dead ends: 2320 [2018-07-22 11:59:07,907 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 11:59:07,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-07-22 11:59:08,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-07-22 11:59:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-07-22 11:59:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-07-22 11:59:08,092 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 58 [2018-07-22 11:59:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 11:59:08,092 INFO L471 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-07-22 11:59:08,092 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 11:59:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-07-22 11:59:08,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-22 11:59:08,100 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 11:59:08,101 INFO L358 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 11:59:08,101 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 11:59:08,101 INFO L82 PathProgramCache]: Analyzing trace with hash 685084937, now seen corresponding path program 1 times [2018-07-22 11:59:08,101 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 11:59:08,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 11:59:08,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:08,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:59:08,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:59:08,683 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-07-22 11:59:08,812 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2018-07-22 11:59:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 50 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 11:59:08,888 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 11:59:08,888 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 11:59:08,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:59:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:59:09,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 11:59:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 11:59:09,284 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 11:59:09,284 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-22 11:59:09,285 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 11:59:09,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 11:59:09,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-22 11:59:09,286 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 7 states. [2018-07-22 11:59:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 11:59:32,712 INFO L93 Difference]: Finished difference Result 22720 states and 38802 transitions. [2018-07-22 11:59:32,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-22 11:59:32,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 130 [2018-07-22 11:59:32,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 11:59:32,794 INFO L225 Difference]: With dead ends: 22720 [2018-07-22 11:59:32,795 INFO L226 Difference]: Without dead ends: 18143 [2018-07-22 11:59:32,803 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2018-07-22 11:59:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18143 states. [2018-07-22 11:59:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18143 to 9087. [2018-07-22 11:59:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9087 states. [2018-07-22 11:59:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9087 states to 9087 states and 11501 transitions. [2018-07-22 11:59:33,227 INFO L78 Accepts]: Start accepts. Automaton has 9087 states and 11501 transitions. Word has length 130 [2018-07-22 11:59:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 11:59:33,232 INFO L471 AbstractCegarLoop]: Abstraction has 9087 states and 11501 transitions. [2018-07-22 11:59:33,232 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 11:59:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9087 states and 11501 transitions. [2018-07-22 11:59:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-22 11:59:33,246 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 11:59:33,247 INFO L358 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 11:59:33,247 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 11:59:33,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1646908598, now seen corresponding path program 1 times [2018-07-22 11:59:33,247 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 11:59:33,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 11:59:33,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:33,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:59:33,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:59:33,654 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-22 11:59:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 11:59:33,854 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 11:59:33,854 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 11:59:33,854 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 11:59:33,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 11:59:33,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-22 11:59:33,857 INFO L87 Difference]: Start difference. First operand 9087 states and 11501 transitions. Second operand 6 states. [2018-07-22 11:59:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 11:59:42,475 INFO L93 Difference]: Finished difference Result 20428 states and 25356 transitions. [2018-07-22 11:59:42,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 11:59:42,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-07-22 11:59:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 11:59:42,516 INFO L225 Difference]: With dead ends: 20428 [2018-07-22 11:59:42,516 INFO L226 Difference]: Without dead ends: 11343 [2018-07-22 11:59:42,526 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-07-22 11:59:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2018-07-22 11:59:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 11343. [2018-07-22 11:59:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11343 states. [2018-07-22 11:59:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11343 states to 11343 states and 13614 transitions. [2018-07-22 11:59:42,744 INFO L78 Accepts]: Start accepts. Automaton has 11343 states and 13614 transitions. Word has length 168 [2018-07-22 11:59:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 11:59:42,745 INFO L471 AbstractCegarLoop]: Abstraction has 11343 states and 13614 transitions. [2018-07-22 11:59:42,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 11:59:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 11343 states and 13614 transitions. [2018-07-22 11:59:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-07-22 11:59:42,753 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 11:59:42,774 INFO L358 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 11:59:42,774 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 11:59:42,775 INFO L82 PathProgramCache]: Analyzing trace with hash -290347073, now seen corresponding path program 1 times [2018-07-22 11:59:42,775 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 11:59:42,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 11:59:42,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:42,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:59:42,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:59:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-22 11:59:43,128 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 11:59:43,129 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 11:59:43,129 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 11:59:43,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 11:59:43,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 11:59:43,130 INFO L87 Difference]: Start difference. First operand 11343 states and 13614 transitions. Second operand 3 states. [2018-07-22 11:59:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 11:59:46,716 INFO L93 Difference]: Finished difference Result 29452 states and 36153 transitions. [2018-07-22 11:59:46,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 11:59:46,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2018-07-22 11:59:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 11:59:46,753 INFO L225 Difference]: With dead ends: 29452 [2018-07-22 11:59:46,753 INFO L226 Difference]: Without dead ends: 18863 [2018-07-22 11:59:46,766 INFO L578 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 [2018-07-22 11:59:46,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18863 states. [2018-07-22 11:59:47,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18863 to 18863. [2018-07-22 11:59:47,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18863 states. [2018-07-22 11:59:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18863 states to 18863 states and 21616 transitions. [2018-07-22 11:59:47,036 INFO L78 Accepts]: Start accepts. Automaton has 18863 states and 21616 transitions. Word has length 276 [2018-07-22 11:59:47,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 11:59:47,037 INFO L471 AbstractCegarLoop]: Abstraction has 18863 states and 21616 transitions. [2018-07-22 11:59:47,037 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 11:59:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 18863 states and 21616 transitions. [2018-07-22 11:59:47,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-07-22 11:59:47,045 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 11:59:47,045 INFO L358 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 11:59:47,045 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 11:59:47,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1930585008, now seen corresponding path program 1 times [2018-07-22 11:59:47,046 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 11:59:47,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 11:59:47,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:47,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:59:47,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:59:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-22 11:59:47,514 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 11:59:47,514 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 11:59:47,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:59:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:59:47,735 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 11:59:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 11:59:47,848 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 11:59:47,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-22 11:59:47,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 11:59:47,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 11:59:47,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 11:59:47,853 INFO L87 Difference]: Start difference. First operand 18863 states and 21616 transitions. Second operand 4 states. [2018-07-22 11:59:54,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 11:59:54,738 INFO L93 Difference]: Finished difference Result 64105 states and 74764 transitions. [2018-07-22 11:59:54,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 11:59:54,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2018-07-22 11:59:54,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 11:59:54,813 INFO L225 Difference]: With dead ends: 64105 [2018-07-22 11:59:54,813 INFO L226 Difference]: Without dead ends: 45996 [2018-07-22 11:59:54,832 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 11:59:54,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45996 states. [2018-07-22 11:59:55,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45996 to 27887. [2018-07-22 11:59:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27887 states. [2018-07-22 11:59:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27887 states to 27887 states and 31832 transitions. [2018-07-22 11:59:55,298 INFO L78 Accepts]: Start accepts. Automaton has 27887 states and 31832 transitions. Word has length 282 [2018-07-22 11:59:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 11:59:55,298 INFO L471 AbstractCegarLoop]: Abstraction has 27887 states and 31832 transitions. [2018-07-22 11:59:55,299 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 11:59:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 27887 states and 31832 transitions. [2018-07-22 11:59:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-07-22 11:59:55,305 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 11:59:55,305 INFO L358 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 11:59:55,305 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 11:59:55,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1333724330, now seen corresponding path program 1 times [2018-07-22 11:59:55,306 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 11:59:55,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 11:59:55,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:55,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 11:59:55,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 11:59:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 11:59:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-22 11:59:55,568 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 11:59:55,568 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 11:59:55,569 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 11:59:55,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 11:59:55,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 11:59:55,569 INFO L87 Difference]: Start difference. First operand 27887 states and 31832 transitions. Second operand 3 states. [2018-07-22 11:59:59,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 11:59:59,588 INFO L93 Difference]: Finished difference Result 67804 states and 79000 transitions. [2018-07-22 11:59:59,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 11:59:59,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2018-07-22 11:59:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 11:59:59,636 INFO L225 Difference]: With dead ends: 67804 [2018-07-22 11:59:59,637 INFO L226 Difference]: Without dead ends: 40671 [2018-07-22 11:59:59,665 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 11:59:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40671 states. [2018-07-22 12:00:00,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40671 to 40671. [2018-07-22 12:00:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40671 states. [2018-07-22 12:00:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40671 states to 40671 states and 47435 transitions. [2018-07-22 12:00:00,234 INFO L78 Accepts]: Start accepts. Automaton has 40671 states and 47435 transitions. Word has length 291 [2018-07-22 12:00:00,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:00:00,235 INFO L471 AbstractCegarLoop]: Abstraction has 40671 states and 47435 transitions. [2018-07-22 12:00:00,235 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 12:00:00,235 INFO L276 IsEmpty]: Start isEmpty. Operand 40671 states and 47435 transitions. [2018-07-22 12:00:00,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-07-22 12:00:00,244 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:00:00,244 INFO L358 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 12:00:00,245 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:00:00,245 INFO L82 PathProgramCache]: Analyzing trace with hash 482116534, now seen corresponding path program 1 times [2018-07-22 12:00:00,245 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:00:00,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:00:00,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:00,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:00:00,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:00:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-22 12:00:00,733 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:00:00,733 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:00:00,735 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:00:00,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:00:00,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:00:00,736 INFO L87 Difference]: Start difference. First operand 40671 states and 47435 transitions. Second operand 4 states. [2018-07-22 12:00:08,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:00:08,358 INFO L93 Difference]: Finished difference Result 97884 states and 115146 transitions. [2018-07-22 12:00:08,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:00:08,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 318 [2018-07-22 12:00:08,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:00:08,421 INFO L225 Difference]: With dead ends: 97884 [2018-07-22 12:00:08,421 INFO L226 Difference]: Without dead ends: 57967 [2018-07-22 12:00:08,447 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:00:08,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57967 states. [2018-07-22 12:00:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57967 to 57967. [2018-07-22 12:00:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57967 states. [2018-07-22 12:00:09,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57967 states to 57967 states and 67531 transitions. [2018-07-22 12:00:09,270 INFO L78 Accepts]: Start accepts. Automaton has 57967 states and 67531 transitions. Word has length 318 [2018-07-22 12:00:09,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:00:09,271 INFO L471 AbstractCegarLoop]: Abstraction has 57967 states and 67531 transitions. [2018-07-22 12:00:09,271 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:00:09,271 INFO L276 IsEmpty]: Start isEmpty. Operand 57967 states and 67531 transitions. [2018-07-22 12:00:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2018-07-22 12:00:09,306 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:00:09,306 INFO L358 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:00:09,307 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:00:09,307 INFO L82 PathProgramCache]: Analyzing trace with hash 453295256, now seen corresponding path program 1 times [2018-07-22 12:00:09,307 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:00:09,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:00:09,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:09,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:00:09,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:00:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-22 12:00:09,774 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:00:09,774 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:00:09,774 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 12:00:09,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 12:00:09,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:00:09,775 INFO L87 Difference]: Start difference. First operand 57967 states and 67531 transitions. Second operand 3 states. [2018-07-22 12:00:14,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:00:14,968 INFO L93 Difference]: Finished difference Result 151276 states and 177014 transitions. [2018-07-22 12:00:14,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 12:00:14,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 533 [2018-07-22 12:00:14,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:00:15,052 INFO L225 Difference]: With dead ends: 151276 [2018-07-22 12:00:15,052 INFO L226 Difference]: Without dead ends: 94063 [2018-07-22 12:00:15,087 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:00:15,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94063 states. [2018-07-22 12:00:18,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94063 to 92559. [2018-07-22 12:00:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92559 states. [2018-07-22 12:00:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92559 states to 92559 states and 104954 transitions. [2018-07-22 12:00:18,613 INFO L78 Accepts]: Start accepts. Automaton has 92559 states and 104954 transitions. Word has length 533 [2018-07-22 12:00:18,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:00:18,613 INFO L471 AbstractCegarLoop]: Abstraction has 92559 states and 104954 transitions. [2018-07-22 12:00:18,614 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 12:00:18,614 INFO L276 IsEmpty]: Start isEmpty. Operand 92559 states and 104954 transitions. [2018-07-22 12:00:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2018-07-22 12:00:18,644 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:00:18,644 INFO L358 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:00:18,645 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:00:18,645 INFO L82 PathProgramCache]: Analyzing trace with hash -2046455982, now seen corresponding path program 1 times [2018-07-22 12:00:18,645 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:00:18,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:00:18,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:18,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:00:18,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:00:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-22 12:00:19,311 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:00:19,311 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:00:19,311 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:00:19,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:00:19,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:00:19,312 INFO L87 Difference]: Start difference. First operand 92559 states and 104954 transitions. Second operand 4 states. [2018-07-22 12:00:27,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:00:27,939 INFO L93 Difference]: Finished difference Result 233244 states and 267859 transitions. [2018-07-22 12:00:27,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:00:27,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 625 [2018-07-22 12:00:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:00:28,067 INFO L225 Difference]: With dead ends: 233244 [2018-07-22 12:00:28,067 INFO L226 Difference]: Without dead ends: 141439 [2018-07-22 12:00:28,095 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:00:28,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141439 states. [2018-07-22 12:00:29,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141439 to 141439. [2018-07-22 12:00:29,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141439 states. [2018-07-22 12:00:29,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141439 states to 141439 states and 157116 transitions. [2018-07-22 12:00:29,196 INFO L78 Accepts]: Start accepts. Automaton has 141439 states and 157116 transitions. Word has length 625 [2018-07-22 12:00:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:00:29,197 INFO L471 AbstractCegarLoop]: Abstraction has 141439 states and 157116 transitions. [2018-07-22 12:00:29,197 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:00:29,197 INFO L276 IsEmpty]: Start isEmpty. Operand 141439 states and 157116 transitions. [2018-07-22 12:00:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2018-07-22 12:00:29,232 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:00:29,233 INFO L358 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:00:29,233 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:00:29,233 INFO L82 PathProgramCache]: Analyzing trace with hash -275725406, now seen corresponding path program 1 times [2018-07-22 12:00:29,233 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:00:29,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:00:29,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:29,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:00:29,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:00:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-07-22 12:00:30,525 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:00:30,526 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:00:30,526 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:00:30,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:00:30,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:00:30,527 INFO L87 Difference]: Start difference. First operand 141439 states and 157116 transitions. Second operand 5 states. [2018-07-22 12:00:39,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:00:39,475 INFO L93 Difference]: Finished difference Result 412281 states and 458160 transitions. [2018-07-22 12:00:39,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 12:00:39,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 657 [2018-07-22 12:00:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:00:39,762 INFO L225 Difference]: With dead ends: 412281 [2018-07-22 12:00:39,762 INFO L226 Difference]: Without dead ends: 271596 [2018-07-22 12:00:39,819 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:00:39,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271596 states. [2018-07-22 12:00:42,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271596 to 212938. [2018-07-22 12:00:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212938 states. [2018-07-22 12:00:42,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212938 states to 212938 states and 229695 transitions. [2018-07-22 12:00:42,608 INFO L78 Accepts]: Start accepts. Automaton has 212938 states and 229695 transitions. Word has length 657 [2018-07-22 12:00:42,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:00:42,609 INFO L471 AbstractCegarLoop]: Abstraction has 212938 states and 229695 transitions. [2018-07-22 12:00:42,609 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:00:42,609 INFO L276 IsEmpty]: Start isEmpty. Operand 212938 states and 229695 transitions. [2018-07-22 12:00:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2018-07-22 12:00:42,646 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:00:42,647 INFO L358 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:00:42,647 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:00:42,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1574463248, now seen corresponding path program 1 times [2018-07-22 12:00:42,648 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:00:42,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:00:42,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:42,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:00:42,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:00:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2018-07-22 12:00:43,376 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:00:43,395 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:00:43,396 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:00:43,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:00:43,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:00:43,397 INFO L87 Difference]: Start difference. First operand 212938 states and 229695 transitions. Second operand 4 states. [2018-07-22 12:00:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:00:54,339 INFO L93 Difference]: Finished difference Result 425122 states and 458631 transitions. [2018-07-22 12:00:54,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:00:54,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 659 [2018-07-22 12:00:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:00:54,549 INFO L225 Difference]: With dead ends: 425122 [2018-07-22 12:00:54,549 INFO L226 Difference]: Without dead ends: 212938 [2018-07-22 12:00:54,616 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:00:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212938 states. [2018-07-22 12:00:57,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212938 to 210682. [2018-07-22 12:00:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210682 states. [2018-07-22 12:00:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210682 states to 210682 states and 220018 transitions. [2018-07-22 12:00:57,289 INFO L78 Accepts]: Start accepts. Automaton has 210682 states and 220018 transitions. Word has length 659 [2018-07-22 12:00:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:00:57,290 INFO L471 AbstractCegarLoop]: Abstraction has 210682 states and 220018 transitions. [2018-07-22 12:00:57,290 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:00:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 210682 states and 220018 transitions. [2018-07-22 12:00:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2018-07-22 12:00:57,328 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:00:57,330 INFO L358 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:00:57,330 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:00:57,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1619347578, now seen corresponding path program 1 times [2018-07-22 12:00:57,330 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:00:57,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:00:57,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:57,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:00:57,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:00:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:00:58,148 WARN L169 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-07-22 12:00:58,492 WARN L169 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-07-22 12:00:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 771 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-22 12:00:59,515 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:00:59,515 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 12:00:59,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:00:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:00:59,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:00:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2018-07-22 12:00:59,852 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:00:59,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-07-22 12:00:59,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-22 12:00:59,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-22 12:00:59,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-07-22 12:00:59,854 INFO L87 Difference]: Start difference. First operand 210682 states and 220018 transitions. Second operand 10 states. [2018-07-22 12:01:20,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:01:20,349 INFO L93 Difference]: Finished difference Result 619788 states and 648216 transitions. [2018-07-22 12:01:20,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-22 12:01:20,349 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 663 [2018-07-22 12:01:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:01:21,422 INFO L225 Difference]: With dead ends: 619788 [2018-07-22 12:01:21,422 INFO L226 Difference]: Without dead ends: 400283 [2018-07-22 12:01:21,495 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 670 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2018-07-22 12:01:21,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400283 states. [2018-07-22 12:01:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400283 to 221201. [2018-07-22 12:01:24,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221201 states. [2018-07-22 12:01:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221201 states to 221201 states and 230007 transitions. [2018-07-22 12:01:25,110 INFO L78 Accepts]: Start accepts. Automaton has 221201 states and 230007 transitions. Word has length 663 [2018-07-22 12:01:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:01:25,111 INFO L471 AbstractCegarLoop]: Abstraction has 221201 states and 230007 transitions. [2018-07-22 12:01:25,111 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-22 12:01:25,111 INFO L276 IsEmpty]: Start isEmpty. Operand 221201 states and 230007 transitions. [2018-07-22 12:01:25,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2018-07-22 12:01:25,213 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:01:25,214 INFO L358 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:01:25,214 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:01:25,214 INFO L82 PathProgramCache]: Analyzing trace with hash 241232565, now seen corresponding path program 1 times [2018-07-22 12:01:25,214 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:01:25,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:01:25,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:01:25,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:01:25,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:01:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:01:26,279 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-22 12:01:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 654 proven. 6 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-07-22 12:01:31,406 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:01:31,406 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 12:01:31,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:01:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:01:31,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:01:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 604 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2018-07-22 12:01:32,350 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:01:32,351 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2018-07-22 12:01:32,351 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-22 12:01:32,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-22 12:01:32,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-07-22 12:01:32,352 INFO L87 Difference]: Start difference. First operand 221201 states and 230007 transitions. Second operand 11 states. [2018-07-22 12:01:32,528 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2018-07-22 12:01:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:01:53,047 INFO L93 Difference]: Finished difference Result 446962 states and 464940 transitions. [2018-07-22 12:01:53,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-22 12:01:53,080 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1026 [2018-07-22 12:01:53,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:01:53,081 INFO L225 Difference]: With dead ends: 446962 [2018-07-22 12:01:53,081 INFO L226 Difference]: Without dead ends: 0 [2018-07-22 12:01:53,152 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1066 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=236, Invalid=466, Unknown=0, NotChecked=0, Total=702 [2018-07-22 12:01:53,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-22 12:01:53,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-22 12:01:53,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-22 12:01:53,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-22 12:01:53,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1026 [2018-07-22 12:01:53,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:01:53,153 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-22 12:01:53,153 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-22 12:01:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-22 12:01:53,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-22 12:01:53,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-22 12:01:53,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:53,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:53,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:53,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:54,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:55,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,688 WARN L169 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 1309 DAG size of output: 813 [2018-07-22 12:01:56,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:56,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:57,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,339 WARN L169 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1265 DAG size of output: 776 [2018-07-22 12:01:58,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:58,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:01:59,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,172 WARN L169 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1288 DAG size of output: 786 [2018-07-22 12:02:00,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:00,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:01,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,168 WARN L169 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 1330 DAG size of output: 834 [2018-07-22 12:02:02,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,505 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:02,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:03,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:04,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:04,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:04,064 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:04,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:04,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 12:02:04,176 WARN L169 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 1330 DAG size of output: 834 [2018-07-22 12:02:08,325 WARN L169 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 650 DAG size of output: 112 [2018-07-22 12:02:11,974 WARN L169 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 617 DAG size of output: 114 [2018-07-22 12:02:15,754 WARN L169 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 626 DAG size of output: 105 Received shutdown request... [2018-07-22 12:02:19,776 WARN L177 SmtUtils]: Removed 2 from assertion stack [2018-07-22 12:02:19,777 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-22 12:02:19,778 INFO L168 Benchmark]: Toolchain (without parser) took 216984.39 ms. Allocated memory was 306.7 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 240.2 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 2.1 GB. Max. memory is 5.3 GB. [2018-07-22 12:02:19,778 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 12:02:19,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2592.14 ms. Allocated memory was 306.7 MB in the beginning and 380.1 MB in the end (delta: 73.4 MB). Free memory was 239.2 MB in the beginning and 268.2 MB in the end (delta: -29.1 MB). Peak memory consumption was 103.3 MB. Max. memory is 5.3 GB. [2018-07-22 12:02:19,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 407.21 ms. Allocated memory is still 380.1 MB. Free memory was 268.2 MB in the beginning and 189.5 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 5.3 GB. [2018-07-22 12:02:19,782 INFO L168 Benchmark]: Boogie Preprocessor took 1390.45 ms. Allocated memory was 380.1 MB in the beginning and 652.2 MB in the end (delta: 272.1 MB). Free memory was 189.5 MB in the beginning and 526.4 MB in the end (delta: -336.9 MB). Peak memory consumption was 115.0 MB. Max. memory is 5.3 GB. [2018-07-22 12:02:19,782 INFO L168 Benchmark]: RCFGBuilder took 9640.19 ms. Allocated memory was 652.2 MB in the beginning and 789.6 MB in the end (delta: 137.4 MB). Free memory was 526.4 MB in the beginning and 549.1 MB in the end (delta: -22.8 MB). Peak memory consumption was 278.2 MB. Max. memory is 5.3 GB. [2018-07-22 12:02:19,783 INFO L168 Benchmark]: TraceAbstraction took 202942.33 ms. Allocated memory was 789.6 MB in the beginning and 3.1 GB in the end (delta: 2.3 GB). Free memory was 549.1 MB in the beginning and 2.1 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.9 GB. Max. memory is 5.3 GB. [2018-07-22 12:02:19,789 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2592.14 ms. Allocated memory was 306.7 MB in the beginning and 380.1 MB in the end (delta: 73.4 MB). Free memory was 239.2 MB in the beginning and 268.2 MB in the end (delta: -29.1 MB). Peak memory consumption was 103.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 407.21 ms. Allocated memory is still 380.1 MB. Free memory was 268.2 MB in the beginning and 189.5 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1390.45 ms. Allocated memory was 380.1 MB in the beginning and 652.2 MB in the end (delta: 272.1 MB). Free memory was 189.5 MB in the beginning and 526.4 MB in the end (delta: -336.9 MB). Peak memory consumption was 115.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 9640.19 ms. Allocated memory was 652.2 MB in the beginning and 789.6 MB in the end (delta: 137.4 MB). Free memory was 526.4 MB in the beginning and 549.1 MB in the end (delta: -22.8 MB). Peak memory consumption was 278.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 202942.33 ms. Allocated memory was 789.6 MB in the beginning and 3.1 GB in the end (delta: 2.3 GB). Free memory was 549.1 MB in the beginning and 2.1 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.9 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 183]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 672. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem12_label36_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_12-02-19-801.csv Completed graceful shutdown