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/Problem15_label02_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 03:24:23,480 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 03:24:23,482 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 03:24:23,495 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 03:24:23,495 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 03:24:23,496 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 03:24:23,497 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 03:24:23,503 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 03:24:23,505 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 03:24:23,506 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 03:24:23,507 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 03:24:23,507 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 03:24:23,508 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 03:24:23,508 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 03:24:23,510 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 03:24:23,510 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 03:24:23,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 03:24:23,515 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 03:24:23,517 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 03:24:23,519 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 03:24:23,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 03:24:23,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 03:24:23,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-22 03:24:23,531 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 03:24:23,545 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 03:24:23,546 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 03:24:23,547 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 03:24:23,547 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 03:24:23,547 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 03:24:23,548 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 03:24:23,548 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 03:24:23,548 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 03:24:23,548 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 03:24:23,548 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 03:24:23,549 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 03:24:23,549 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 03:24:23,549 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 03:24:23,549 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 03:24:23,549 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 03:24:23,550 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 03:24:23,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 03:24:23,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 03:24:23,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 03:24:23,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 03:24:23,551 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 03:24:23,551 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 03:24:23,551 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 03:24:23,551 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 03:24:23,551 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 03:24:23,551 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 03:24:23,552 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 03:24:23,552 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 03:24:23,552 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 03:24:23,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 03:24:23,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 03:24:23,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 03:24:23,623 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 03:24:23,623 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 03:24:23,624 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-07-22 03:24:23,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/12ada27d5/25fd24b06fee46d59be2a9fdb81142dd/FLAGc613fd1fc [2018-07-22 03:24:24,399 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 03:24:24,399 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-07-22 03:24:24,434 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/12ada27d5/25fd24b06fee46d59be2a9fdb81142dd/FLAGc613fd1fc [2018-07-22 03:24:24,457 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/12ada27d5/25fd24b06fee46d59be2a9fdb81142dd [2018-07-22 03:24:24,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 03:24:24,477 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 03:24:24,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 03:24:24,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 03:24:24,487 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 03:24:24,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:24:24" (1/1) ... [2018-07-22 03:24:24,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff4171e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:24, skipping insertion in model container [2018-07-22 03:24:24,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:24:24" (1/1) ... [2018-07-22 03:24:24,781 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 03:24:25,435 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 03:24:25,452 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 03:24:25,848 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 03:24:25,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25 WrapperNode [2018-07-22 03:24:25,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 03:24:25,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 03:24:25,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 03:24:25,975 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 03:24:25,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:26,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:26,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 03:24:26,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 03:24:26,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 03:24:26,241 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 03:24:26,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:26,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:26,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:26,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:26,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:26,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:27,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (1/1) ... [2018-07-22 03:24:27,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 03:24:27,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 03:24:27,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 03:24:27,041 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 03:24:27,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (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 03:24:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 03:24:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 03:24:27,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 03:24:36,491 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 03:24:36,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:24:36 BoogieIcfgContainer [2018-07-22 03:24:36,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 03:24:36,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 03:24:36,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 03:24:36,496 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 03:24:36,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:24:24" (1/3) ... [2018-07-22 03:24:36,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303044f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:24:36, skipping insertion in model container [2018-07-22 03:24:36,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:24:25" (2/3) ... [2018-07-22 03:24:36,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303044f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:24:36, skipping insertion in model container [2018-07-22 03:24:36,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:24:36" (3/3) ... [2018-07-22 03:24:36,501 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label02_false-unreach-call.c [2018-07-22 03:24:36,508 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 03:24:36,516 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 03:24:36,570 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 03:24:36,571 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 03:24:36,571 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 03:24:36,571 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 03:24:36,571 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 03:24:36,571 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 03:24:36,571 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 03:24:36,571 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 03:24:36,572 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 03:24:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2018-07-22 03:24:36,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-22 03:24:36,611 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:24:36,612 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] [2018-07-22 03:24:36,612 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:24:36,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1827210562, now seen corresponding path program 1 times [2018-07-22 03:24:36,620 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:24:36,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:24:36,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:24:36,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:24:36,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:24:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:24:36,962 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 03:24:36,965 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:24:36,965 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:24:36,968 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:24:36,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:24:36,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:24:36,982 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 4 states. [2018-07-22 03:24:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:24:44,702 INFO L93 Difference]: Finished difference Result 1518 states and 2792 transitions. [2018-07-22 03:24:44,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:24:44,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-07-22 03:24:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:24:44,730 INFO L225 Difference]: With dead ends: 1518 [2018-07-22 03:24:44,730 INFO L226 Difference]: Without dead ends: 1086 [2018-07-22 03:24:44,736 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 03:24:44,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2018-07-22 03:24:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1063. [2018-07-22 03:24:44,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-07-22 03:24:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1813 transitions. [2018-07-22 03:24:44,846 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1813 transitions. Word has length 29 [2018-07-22 03:24:44,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:24:44,847 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1813 transitions. [2018-07-22 03:24:44,847 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:24:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1813 transitions. [2018-07-22 03:24:44,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-22 03:24:44,851 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:24:44,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:44,852 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:24:44,852 INFO L82 PathProgramCache]: Analyzing trace with hash -334858861, now seen corresponding path program 1 times [2018-07-22 03:24:44,852 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:24:44,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:24:44,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:24:44,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:24:44,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:24:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:24:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:24:45,188 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:24:45,188 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:24:45,192 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:24:45,192 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:24:45,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:24:45,193 INFO L87 Difference]: Start difference. First operand 1063 states and 1813 transitions. Second operand 4 states. [2018-07-22 03:24:54,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:24:54,430 INFO L93 Difference]: Finished difference Result 3933 states and 6875 transitions. [2018-07-22 03:24:54,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:24:54,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-07-22 03:24:54,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:24:54,447 INFO L225 Difference]: With dead ends: 3933 [2018-07-22 03:24:54,448 INFO L226 Difference]: Without dead ends: 2872 [2018-07-22 03:24:54,457 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:24:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2018-07-22 03:24:54,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2870. [2018-07-22 03:24:54,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2870 states. [2018-07-22 03:24:54,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 4297 transitions. [2018-07-22 03:24:54,573 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 4297 transitions. Word has length 98 [2018-07-22 03:24:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:24:54,574 INFO L471 AbstractCegarLoop]: Abstraction has 2870 states and 4297 transitions. [2018-07-22 03:24:54,574 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:24:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 4297 transitions. [2018-07-22 03:24:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-22 03:24:54,582 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:24:54,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:54,582 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:24:54,583 INFO L82 PathProgramCache]: Analyzing trace with hash -2086905433, now seen corresponding path program 1 times [2018-07-22 03:24:54,583 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:24:54,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:24:54,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:24:54,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:24:54,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:24:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:24:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:24:54,827 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:24:54,827 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:24:54,827 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:24:54,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:24:54,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:24:54,828 INFO L87 Difference]: Start difference. First operand 2870 states and 4297 transitions. Second operand 4 states. [2018-07-22 03:25:03,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:25:03,086 INFO L93 Difference]: Finished difference Result 11140 states and 16792 transitions. [2018-07-22 03:25:03,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:25:03,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2018-07-22 03:25:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:25:03,131 INFO L225 Difference]: With dead ends: 11140 [2018-07-22 03:25:03,131 INFO L226 Difference]: Without dead ends: 8272 [2018-07-22 03:25:03,137 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:25:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2018-07-22 03:25:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 7970. [2018-07-22 03:25:03,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7970 states. [2018-07-22 03:25:03,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7970 states to 7970 states and 10861 transitions. [2018-07-22 03:25:03,344 INFO L78 Accepts]: Start accepts. Automaton has 7970 states and 10861 transitions. Word has length 106 [2018-07-22 03:25:03,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:25:03,344 INFO L471 AbstractCegarLoop]: Abstraction has 7970 states and 10861 transitions. [2018-07-22 03:25:03,344 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:25:03,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7970 states and 10861 transitions. [2018-07-22 03:25:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-22 03:25:03,358 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:25:03,359 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, 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] [2018-07-22 03:25:03,359 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:25:03,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1552663638, now seen corresponding path program 1 times [2018-07-22 03:25:03,359 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:25:03,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:25:03,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:03,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:25:03,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:25:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-22 03:25:03,815 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:25:03,815 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:25:03,816 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:25:03,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:25:03,816 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:25:03,816 INFO L87 Difference]: Start difference. First operand 7970 states and 10861 transitions. Second operand 4 states. [2018-07-22 03:25:08,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:25:08,018 INFO L93 Difference]: Finished difference Result 15937 states and 21721 transitions. [2018-07-22 03:25:08,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:25:08,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2018-07-22 03:25:08,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:25:08,054 INFO L225 Difference]: With dead ends: 15937 [2018-07-22 03:25:08,054 INFO L226 Difference]: Without dead ends: 7969 [2018-07-22 03:25:08,063 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 03:25:08,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7969 states. [2018-07-22 03:25:08,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7969 to 7367. [2018-07-22 03:25:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7367 states. [2018-07-22 03:25:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7367 states to 7367 states and 8930 transitions. [2018-07-22 03:25:08,219 INFO L78 Accepts]: Start accepts. Automaton has 7367 states and 8930 transitions. Word has length 191 [2018-07-22 03:25:08,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:25:08,219 INFO L471 AbstractCegarLoop]: Abstraction has 7367 states and 8930 transitions. [2018-07-22 03:25:08,220 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:25:08,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7367 states and 8930 transitions. [2018-07-22 03:25:08,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-07-22 03:25:08,227 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:25:08,227 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:25:08,227 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:25:08,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1523245223, now seen corresponding path program 1 times [2018-07-22 03:25:08,229 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:25:08,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:25:08,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:08,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:25:08,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:25:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 184 proven. 4 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-07-22 03:25:08,656 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 03:25:08,656 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 03:25:08,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:25:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:25:08,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 03:25:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-22 03:25:08,997 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 03:25:08,998 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-22 03:25:08,999 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:25:08,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:25:08,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:25:08,999 INFO L87 Difference]: Start difference. First operand 7367 states and 8930 transitions. Second operand 4 states. [2018-07-22 03:25:13,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:25:13,318 INFO L93 Difference]: Finished difference Result 26816 states and 32812 transitions. [2018-07-22 03:25:13,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:25:13,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 267 [2018-07-22 03:25:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:25:13,383 INFO L225 Difference]: With dead ends: 26816 [2018-07-22 03:25:13,383 INFO L226 Difference]: Without dead ends: 19451 [2018-07-22 03:25:13,393 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 267 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 03:25:13,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19451 states. [2018-07-22 03:25:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19451 to 12167. [2018-07-22 03:25:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12167 states. [2018-07-22 03:25:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12167 states to 12167 states and 14220 transitions. [2018-07-22 03:25:13,719 INFO L78 Accepts]: Start accepts. Automaton has 12167 states and 14220 transitions. Word has length 267 [2018-07-22 03:25:13,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:25:13,720 INFO L471 AbstractCegarLoop]: Abstraction has 12167 states and 14220 transitions. [2018-07-22 03:25:13,720 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:25:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 12167 states and 14220 transitions. [2018-07-22 03:25:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-07-22 03:25:13,730 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:25:13,730 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, 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] [2018-07-22 03:25:13,730 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:25:13,731 INFO L82 PathProgramCache]: Analyzing trace with hash -2046084226, now seen corresponding path program 1 times [2018-07-22 03:25:13,731 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:25:13,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:25:13,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:13,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:25:13,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:25:14,471 WARN L169 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-07-22 03:25:14,829 WARN L169 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-07-22 03:25:15,392 WARN L169 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 13 [2018-07-22 03:25:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-22 03:25:15,818 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:25:15,818 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 03:25:15,819 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 03:25:15,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 03:25:15,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-22 03:25:15,819 INFO L87 Difference]: Start difference. First operand 12167 states and 14220 transitions. Second operand 6 states. [2018-07-22 03:25:22,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:25:22,226 INFO L93 Difference]: Finished difference Result 28855 states and 33631 transitions. [2018-07-22 03:25:22,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 03:25:22,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 343 [2018-07-22 03:25:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:25:22,253 INFO L225 Difference]: With dead ends: 28855 [2018-07-22 03:25:22,253 INFO L226 Difference]: Without dead ends: 16690 [2018-07-22 03:25:22,262 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-22 03:25:22,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16690 states. [2018-07-22 03:25:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16690 to 16073. [2018-07-22 03:25:22,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16073 states. [2018-07-22 03:25:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16073 states to 16073 states and 18446 transitions. [2018-07-22 03:25:22,518 INFO L78 Accepts]: Start accepts. Automaton has 16073 states and 18446 transitions. Word has length 343 [2018-07-22 03:25:22,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:25:22,518 INFO L471 AbstractCegarLoop]: Abstraction has 16073 states and 18446 transitions. [2018-07-22 03:25:22,518 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 03:25:22,519 INFO L276 IsEmpty]: Start isEmpty. Operand 16073 states and 18446 transitions. [2018-07-22 03:25:22,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-07-22 03:25:22,527 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:25:22,528 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, 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, 1, 1, 1, 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 03:25:22,528 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:25:22,528 INFO L82 PathProgramCache]: Analyzing trace with hash -494663710, now seen corresponding path program 1 times [2018-07-22 03:25:22,529 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:25:22,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:25:22,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:22,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:25:22,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:25:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:25:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:25:23,558 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 03:25:23,558 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) [2018-07-22 03:25:23,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 03:25:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:25:23,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 03:25:24,528 WARN L169 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 24 [2018-07-22 03:25:49,353 WARN L169 SmtUtils]: Spent 24.57 s on a formula simplification. DAG size of input: 270 DAG size of output: 191 [2018-07-22 03:25:50,739 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:25:50,762 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 03:25:50,762 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-07-22 03:25:50,763 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-22 03:25:50,763 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-22 03:25:50,763 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-07-22 03:25:50,764 INFO L87 Difference]: Start difference. First operand 16073 states and 18446 transitions. Second operand 8 states. Received shutdown request... [2018-07-22 03:28:44,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 03:28:44,869 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 03:28:44,875 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 03:28:44,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:28:44 BoogieIcfgContainer [2018-07-22 03:28:44,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 03:28:44,877 INFO L168 Benchmark]: Toolchain (without parser) took 260408.14 ms. Allocated memory was 308.8 MB in the beginning and 992.0 MB in the end (delta: 683.1 MB). Free memory was 246.2 MB in the beginning and 335.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 593.7 MB. Max. memory is 5.3 GB. [2018-07-22 03:28:44,879 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 308.8 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 03:28:44,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1494.22 ms. Allocated memory was 308.8 MB in the beginning and 334.0 MB in the end (delta: 25.2 MB). Free memory was 246.2 MB in the beginning and 237.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 5.3 GB. [2018-07-22 03:28:44,880 INFO L168 Benchmark]: Boogie Procedure Inliner took 265.63 ms. Allocated memory is still 334.0 MB. Free memory was 237.3 MB in the beginning and 196.4 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 5.3 GB. [2018-07-22 03:28:44,881 INFO L168 Benchmark]: Boogie Preprocessor took 800.22 ms. Allocated memory was 334.0 MB in the beginning and 585.6 MB in the end (delta: 251.7 MB). Free memory was 196.4 MB in the beginning and 514.4 MB in the end (delta: -318.0 MB). Peak memory consumption was 57.5 MB. Max. memory is 5.3 GB. [2018-07-22 03:28:44,881 INFO L168 Benchmark]: RCFGBuilder took 9450.70 ms. Allocated memory was 585.6 MB in the beginning and 591.4 MB in the end (delta: 5.8 MB). Free memory was 514.4 MB in the beginning and 381.0 MB in the end (delta: 133.5 MB). Peak memory consumption was 199.3 MB. Max. memory is 5.3 GB. [2018-07-22 03:28:44,882 INFO L168 Benchmark]: TraceAbstraction took 248383.11 ms. Allocated memory was 591.4 MB in the beginning and 992.0 MB in the end (delta: 400.6 MB). Free memory was 381.0 MB in the beginning and 335.6 MB in the end (delta: 45.4 MB). Peak memory consumption was 445.9 MB. Max. memory is 5.3 GB. [2018-07-22 03:28:44,889 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 308.8 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1494.22 ms. Allocated memory was 308.8 MB in the beginning and 334.0 MB in the end (delta: 25.2 MB). Free memory was 246.2 MB in the beginning and 237.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 265.63 ms. Allocated memory is still 334.0 MB. Free memory was 237.3 MB in the beginning and 196.4 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 800.22 ms. Allocated memory was 334.0 MB in the beginning and 585.6 MB in the end (delta: 251.7 MB). Free memory was 196.4 MB in the beginning and 514.4 MB in the end (delta: -318.0 MB). Peak memory consumption was 57.5 MB. Max. memory is 5.3 GB. * RCFGBuilder took 9450.70 ms. Allocated memory was 585.6 MB in the beginning and 591.4 MB in the end (delta: 5.8 MB). Free memory was 514.4 MB in the beginning and 381.0 MB in the end (delta: 133.5 MB). Peak memory consumption was 199.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 248383.11 ms. Allocated memory was 591.4 MB in the beginning and 992.0 MB in the end (delta: 400.6 MB). Free memory was 381.0 MB in the beginning and 335.6 MB in the end (delta: 45.4 MB). Peak memory consumption was 445.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 91). Cancelled while BasicCegarLoop was constructing difference of abstraction (16073states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (18292 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 425 locations, 1 error locations. TIMEOUT Result, 248.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 214.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2619 SDtfs, 6258 SDslu, 1444 SDs, 0 SdLazy, 17689 SolverSat, 3087 SolverUnsat, 78 SolverUnknown, 0 SolverNotchecked, 208.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 649 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 27.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16073occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 8830 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 30.5s InterpolantComputationTime, 2057 NumberOfCodeBlocks, 2057 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2048 ConstructedInterpolants, 93 QuantifiedInterpolants, 8981028 SizeOfPredicates, 1 NumberOfNonLiveVariables, 827 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 917/1104 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem15_label02_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_03-28-44-912.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem15_label02_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_03-28-44-912.csv Completed graceful shutdown