java -Xmx8000000000 -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 csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 02:38:33,483 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 02:38:33,485 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 02:38:33,497 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 02:38:33,497 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 02:38:33,498 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 02:38:33,499 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 02:38:33,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 02:38:33,508 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 02:38:33,509 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 02:38:33,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 02:38:33,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 02:38:33,513 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 02:38:33,514 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 02:38:33,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 02:38:33,517 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 02:38:33,520 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 02:38:33,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 02:38:33,532 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 02:38:33,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 02:38:33,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 02:38:33,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 02:38:33,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-24 02:38:33,559 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 02:38:33,588 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 02:38:33,588 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 02:38:33,589 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 02:38:33,589 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 02:38:33,590 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 02:38:33,590 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 02:38:33,590 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 02:38:33,590 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 02:38:33,590 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 02:38:33,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 02:38:33,591 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 02:38:33,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 02:38:33,591 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 02:38:33,591 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 02:38:33,592 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 02:38:33,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 02:38:33,592 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 02:38:33,592 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 02:38:33,592 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 02:38:33,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:38:33,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 02:38:33,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 02:38:33,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 02:38:33,593 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 02:38:33,594 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 02:38:33,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 02:38:33,594 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 02:38:33,594 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 02:38:33,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 02:38:33,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 02:38:33,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 02:38:33,658 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 02:38:33,658 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 02:38:33,659 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-07-24 02:38:34,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38fef8d60/4ccfc24de1a64f81b2f2f02c8a1e798a/FLAG783fc60e2 [2018-07-24 02:38:34,483 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 02:38:34,484 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-07-24 02:38:34,519 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38fef8d60/4ccfc24de1a64f81b2f2f02c8a1e798a/FLAG783fc60e2 [2018-07-24 02:38:34,536 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38fef8d60/4ccfc24de1a64f81b2f2f02c8a1e798a [2018-07-24 02:38:34,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 02:38:34,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 02:38:34,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 02:38:34,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 02:38:34,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 02:38:34,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:38:34" (1/1) ... [2018-07-24 02:38:34,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42dc77b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:34, skipping insertion in model container [2018-07-24 02:38:34,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:38:34" (1/1) ... [2018-07-24 02:38:34,904 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 02:38:35,945 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:38:35,962 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 02:38:36,700 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:38:36,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36 WrapperNode [2018-07-24 02:38:36,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 02:38:36,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 02:38:36,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 02:38:36,955 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 02:38:36,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:37,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:37,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 02:38:37,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 02:38:37,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 02:38:37,410 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 02:38:38,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:38,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:38,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:38,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:38,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:38,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:38,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... [2018-07-24 02:38:38,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 02:38:38,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 02:38:38,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 02:38:38,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 02:38:38,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:38:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 02:38:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 02:38:38,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 02:38:50,950 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 02:38:50,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:38:50 BoogieIcfgContainer [2018-07-24 02:38:50,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 02:38:50,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 02:38:50,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 02:38:50,955 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 02:38:50,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:38:34" (1/3) ... [2018-07-24 02:38:50,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6700122e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:38:50, skipping insertion in model container [2018-07-24 02:38:50,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:36" (2/3) ... [2018-07-24 02:38:50,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6700122e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:38:50, skipping insertion in model container [2018-07-24 02:38:50,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:38:50" (3/3) ... [2018-07-24 02:38:50,959 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04_true-unreach-call.c [2018-07-24 02:38:50,967 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 02:38:50,976 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 02:38:51,043 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 02:38:51,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 02:38:51,044 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 02:38:51,045 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 02:38:51,045 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 02:38:51,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 02:38:51,045 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 02:38:51,045 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 02:38:51,047 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 02:38:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-24 02:38:51,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-24 02:38:51,089 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:38:51,090 INFO L353 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, 1, 1, 1] [2018-07-24 02:38:51,090 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:38:51,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1059493314, now seen corresponding path program 1 times [2018-07-24 02:38:51,096 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:38:51,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:38:51,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:51,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:38:51,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:38:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:38:51,584 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:38:51,584 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:38:51,590 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:38:51,605 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:38:51,606 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:38:51,609 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-07-24 02:39:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:39:05,978 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-07-24 02:39:05,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:39:05,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-07-24 02:39:05,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:39:06,016 INFO L225 Difference]: With dead ends: 3146 [2018-07-24 02:39:06,017 INFO L226 Difference]: Without dead ends: 2320 [2018-07-24 02:39:06,025 INFO L573 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 [2018-07-24 02:39:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-07-24 02:39:06,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-07-24 02:39:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-07-24 02:39:06,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-07-24 02:39:06,194 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 61 [2018-07-24 02:39:06,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:39:06,195 INFO L471 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-07-24 02:39:06,195 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:39:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-07-24 02:39:06,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-24 02:39:06,202 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:39:06,202 INFO L353 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:39:06,202 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:39:06,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1990771634, now seen corresponding path program 1 times [2018-07-24 02:39:06,203 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:39:06,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:39:06,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:06,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:39:06,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:06,769 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-07-24 02:39:07,103 WARN L169 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2018-07-24 02:39:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 53 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:39:07,197 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:39:07,198 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 02:39:07,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:39:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:07,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:39:07,417 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:39:07,449 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:39:07,449 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-24 02:39:07,450 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 02:39:07,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 02:39:07,451 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-07-24 02:39:07,451 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 7 states. [2018-07-24 02:39:08,572 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-07-24 02:39:37,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:39:37,568 INFO L93 Difference]: Finished difference Result 15950 states and 27417 transitions. [2018-07-24 02:39:37,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 02:39:37,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2018-07-24 02:39:37,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:39:37,628 INFO L225 Difference]: With dead ends: 15950 [2018-07-24 02:39:37,628 INFO L226 Difference]: Without dead ends: 11373 [2018-07-24 02:39:37,637 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-07-24 02:39:37,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2018-07-24 02:39:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 6831. [2018-07-24 02:39:37,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6831 states. [2018-07-24 02:39:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6831 states to 6831 states and 8703 transitions. [2018-07-24 02:39:37,814 INFO L78 Accepts]: Start accepts. Automaton has 6831 states and 8703 transitions. Word has length 133 [2018-07-24 02:39:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:39:37,815 INFO L471 AbstractCegarLoop]: Abstraction has 6831 states and 8703 transitions. [2018-07-24 02:39:37,815 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 02:39:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6831 states and 8703 transitions. [2018-07-24 02:39:37,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-24 02:39:37,823 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:39:37,823 INFO L353 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, 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] [2018-07-24 02:39:37,824 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:39:37,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1975285393, now seen corresponding path program 1 times [2018-07-24 02:39:37,824 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:39:37,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:39:37,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:37,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:39:37,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:39:38,241 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:39:38,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:39:38,242 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:39:38,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:39:38,243 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:39:38,243 INFO L87 Difference]: Start difference. First operand 6831 states and 8703 transitions. Second operand 4 states. [2018-07-24 02:39:49,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:39:49,326 INFO L93 Difference]: Finished difference Result 24940 states and 32129 transitions. [2018-07-24 02:39:49,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:39:49,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2018-07-24 02:39:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:39:49,431 INFO L225 Difference]: With dead ends: 24940 [2018-07-24 02:39:49,431 INFO L226 Difference]: Without dead ends: 18111 [2018-07-24 02:39:49,449 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:39:49,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18111 states. [2018-07-24 02:39:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18111 to 18111. [2018-07-24 02:39:49,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18111 states. [2018-07-24 02:39:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18111 states to 18111 states and 21676 transitions. [2018-07-24 02:39:50,008 INFO L78 Accepts]: Start accepts. Automaton has 18111 states and 21676 transitions. Word has length 171 [2018-07-24 02:39:50,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:39:50,009 INFO L471 AbstractCegarLoop]: Abstraction has 18111 states and 21676 transitions. [2018-07-24 02:39:50,009 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:39:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 18111 states and 21676 transitions. [2018-07-24 02:39:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-07-24 02:39:50,017 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:39:50,018 INFO L353 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, 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] [2018-07-24 02:39:50,018 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:39:50,019 INFO L82 PathProgramCache]: Analyzing trace with hash -114885938, now seen corresponding path program 1 times [2018-07-24 02:39:50,019 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:39:50,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:39:50,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:50,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:39:50,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:39:50,478 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:39:50,478 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:39:50,479 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:39:50,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:39:50,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:39:50,480 INFO L87 Difference]: Start difference. First operand 18111 states and 21676 transitions. Second operand 4 states. [2018-07-24 02:40:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:00,532 INFO L93 Difference]: Finished difference Result 67804 states and 81653 transitions. [2018-07-24 02:40:00,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:40:00,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2018-07-24 02:40:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:00,638 INFO L225 Difference]: With dead ends: 67804 [2018-07-24 02:40:00,639 INFO L226 Difference]: Without dead ends: 49695 [2018-07-24 02:40:00,667 INFO L573 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 [2018-07-24 02:40:00,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49695 states. [2018-07-24 02:40:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49695 to 48943. [2018-07-24 02:40:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48943 states. [2018-07-24 02:40:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48943 states to 48943 states and 57830 transitions. [2018-07-24 02:40:01,565 INFO L78 Accepts]: Start accepts. Automaton has 48943 states and 57830 transitions. Word has length 206 [2018-07-24 02:40:01,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:01,566 INFO L471 AbstractCegarLoop]: Abstraction has 48943 states and 57830 transitions. [2018-07-24 02:40:01,566 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:40:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 48943 states and 57830 transitions. [2018-07-24 02:40:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-07-24 02:40:01,576 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:01,577 INFO L353 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:01,577 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:01,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1165699528, now seen corresponding path program 1 times [2018-07-24 02:40:01,578 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:01,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:01,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:01,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:01,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:40:01,946 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:01,946 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:40:01,947 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:40:01,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:40:01,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:01,948 INFO L87 Difference]: Start difference. First operand 48943 states and 57830 transitions. Second operand 4 states. [2018-07-24 02:40:12,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:12,490 INFO L93 Difference]: Finished difference Result 111420 states and 132562 transitions. [2018-07-24 02:40:12,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:40:12,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2018-07-24 02:40:12,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:12,617 INFO L225 Difference]: With dead ends: 111420 [2018-07-24 02:40:12,617 INFO L226 Difference]: Without dead ends: 63231 [2018-07-24 02:40:12,666 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63231 states. [2018-07-24 02:40:13,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63231 to 60975. [2018-07-24 02:40:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60975 states. [2018-07-24 02:40:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60975 states to 60975 states and 69031 transitions. [2018-07-24 02:40:13,324 INFO L78 Accepts]: Start accepts. Automaton has 60975 states and 69031 transitions. Word has length 282 [2018-07-24 02:40:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:13,325 INFO L471 AbstractCegarLoop]: Abstraction has 60975 states and 69031 transitions. [2018-07-24 02:40:13,325 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:40:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand 60975 states and 69031 transitions. [2018-07-24 02:40:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-07-24 02:40:13,336 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:13,336 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:13,337 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:13,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1190723754, now seen corresponding path program 1 times [2018-07-24 02:40:13,337 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:13,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:13,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:13,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:13,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 117 proven. 4 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-24 02:40:13,749 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:40:13,749 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 02:40:13,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:13,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:40:13,951 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:40:13,973 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:40:13,973 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:40:13,974 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:40:13,974 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:40:13,974 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:13,975 INFO L87 Difference]: Start difference. First operand 60975 states and 69031 transitions. Second operand 4 states. [2018-07-24 02:40:22,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:22,284 INFO L93 Difference]: Finished difference Result 183673 states and 211872 transitions. [2018-07-24 02:40:22,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:40:22,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 285 [2018-07-24 02:40:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:22,448 INFO L225 Difference]: With dead ends: 183673 [2018-07-24 02:40:22,448 INFO L226 Difference]: Without dead ends: 123452 [2018-07-24 02:40:22,495 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 285 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:22,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123452 states. [2018-07-24 02:40:23,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123452 to 81279. [2018-07-24 02:40:23,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81279 states. [2018-07-24 02:40:23,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81279 states to 81279 states and 91897 transitions. [2018-07-24 02:40:23,572 INFO L78 Accepts]: Start accepts. Automaton has 81279 states and 91897 transitions. Word has length 285 [2018-07-24 02:40:23,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:23,573 INFO L471 AbstractCegarLoop]: Abstraction has 81279 states and 91897 transitions. [2018-07-24 02:40:23,573 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:40:23,573 INFO L276 IsEmpty]: Start isEmpty. Operand 81279 states and 91897 transitions. [2018-07-24 02:40:23,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-07-24 02:40:23,583 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:23,583 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:23,584 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:23,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1440823454, now seen corresponding path program 1 times [2018-07-24 02:40:23,584 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:23,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:23,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:23,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:23,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:23,881 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:40:23,881 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:23,882 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:40:23,883 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:40:23,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:40:23,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:23,884 INFO L87 Difference]: Start difference. First operand 81279 states and 91897 transitions. Second operand 4 states. [2018-07-24 02:40:33,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:33,296 INFO L93 Difference]: Finished difference Result 166316 states and 187858 transitions. [2018-07-24 02:40:33,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:40:33,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 290 [2018-07-24 02:40:33,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:33,401 INFO L225 Difference]: With dead ends: 166316 [2018-07-24 02:40:33,402 INFO L226 Difference]: Without dead ends: 85791 [2018-07-24 02:40:33,450 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85791 states. [2018-07-24 02:40:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85791 to 85039. [2018-07-24 02:40:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85039 states. [2018-07-24 02:40:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85039 states to 85039 states and 94536 transitions. [2018-07-24 02:40:34,321 INFO L78 Accepts]: Start accepts. Automaton has 85039 states and 94536 transitions. Word has length 290 [2018-07-24 02:40:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:34,321 INFO L471 AbstractCegarLoop]: Abstraction has 85039 states and 94536 transitions. [2018-07-24 02:40:34,321 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:40:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 85039 states and 94536 transitions. [2018-07-24 02:40:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-07-24 02:40:34,330 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:34,330 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:34,330 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:34,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1138700884, now seen corresponding path program 1 times [2018-07-24 02:40:34,331 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:34,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:34,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:34,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:34,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:35,402 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 02:40:35,403 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:35,403 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:40:35,404 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:40:35,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:40:35,404 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:40:35,404 INFO L87 Difference]: Start difference. First operand 85039 states and 94536 transitions. Second operand 3 states. [2018-07-24 02:40:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:43,249 INFO L93 Difference]: Finished difference Result 181356 states and 201687 transitions. [2018-07-24 02:40:43,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:40:43,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2018-07-24 02:40:43,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:43,347 INFO L225 Difference]: With dead ends: 181356 [2018-07-24 02:40:43,347 INFO L226 Difference]: Without dead ends: 97071 [2018-07-24 02:40:43,392 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:40:43,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97071 states. [2018-07-24 02:40:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97071 to 97071. [2018-07-24 02:40:44,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97071 states. [2018-07-24 02:40:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97071 states to 97071 states and 107115 transitions. [2018-07-24 02:40:44,306 INFO L78 Accepts]: Start accepts. Automaton has 97071 states and 107115 transitions. Word has length 294 [2018-07-24 02:40:44,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:44,307 INFO L471 AbstractCegarLoop]: Abstraction has 97071 states and 107115 transitions. [2018-07-24 02:40:44,307 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:40:44,307 INFO L276 IsEmpty]: Start isEmpty. Operand 97071 states and 107115 transitions. [2018-07-24 02:40:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-07-24 02:40:44,323 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:44,323 INFO L353 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 02:40:44,323 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:44,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1403891710, now seen corresponding path program 1 times [2018-07-24 02:40:44,324 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:44,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:44,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:44,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:44,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2018-07-24 02:40:45,720 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:45,721 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 02:40:45,721 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 02:40:45,721 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 02:40:45,722 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:40:45,722 INFO L87 Difference]: Start difference. First operand 97071 states and 107115 transitions. Second operand 6 states. [2018-07-24 02:40:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:56,104 INFO L93 Difference]: Finished difference Result 225725 states and 249284 transitions. [2018-07-24 02:40:56,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:40:56,104 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 358 [2018-07-24 02:40:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:56,235 INFO L225 Difference]: With dead ends: 225725 [2018-07-24 02:40:56,235 INFO L226 Difference]: Without dead ends: 129408 [2018-07-24 02:40:56,292 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-24 02:40:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129408 states. [2018-07-24 02:40:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129408 to 126399. [2018-07-24 02:40:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126399 states. [2018-07-24 02:40:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126399 states to 126399 states and 138340 transitions. [2018-07-24 02:40:58,048 INFO L78 Accepts]: Start accepts. Automaton has 126399 states and 138340 transitions. Word has length 358 [2018-07-24 02:40:58,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:58,048 INFO L471 AbstractCegarLoop]: Abstraction has 126399 states and 138340 transitions. [2018-07-24 02:40:58,048 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 02:40:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 126399 states and 138340 transitions. [2018-07-24 02:40:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2018-07-24 02:40:58,065 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:58,065 INFO L353 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:58,066 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:58,066 INFO L82 PathProgramCache]: Analyzing trace with hash 291149494, now seen corresponding path program 1 times [2018-07-24 02:40:58,066 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:58,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:58,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:58,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:58,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-07-24 02:40:58,609 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:58,610 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:40:58,610 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:40:58,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:40:58,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:58,611 INFO L87 Difference]: Start difference. First operand 126399 states and 138340 transitions. Second operand 4 states. [2018-07-24 02:41:06,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:06,697 INFO L93 Difference]: Finished difference Result 252044 states and 275902 transitions. [2018-07-24 02:41:06,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:41:06,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 451 [2018-07-24 02:41:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:06,828 INFO L225 Difference]: With dead ends: 252044 [2018-07-24 02:41:06,828 INFO L226 Difference]: Without dead ends: 120373 [2018-07-24 02:41:06,880 INFO L573 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 [2018-07-24 02:41:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120373 states. [2018-07-24 02:41:07,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120373 to 116613. [2018-07-24 02:41:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116613 states. [2018-07-24 02:41:07,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116613 states to 116613 states and 122776 transitions. [2018-07-24 02:41:07,876 INFO L78 Accepts]: Start accepts. Automaton has 116613 states and 122776 transitions. Word has length 451 [2018-07-24 02:41:07,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:07,877 INFO L471 AbstractCegarLoop]: Abstraction has 116613 states and 122776 transitions. [2018-07-24 02:41:07,877 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:41:07,877 INFO L276 IsEmpty]: Start isEmpty. Operand 116613 states and 122776 transitions. [2018-07-24 02:41:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2018-07-24 02:41:07,888 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:07,889 INFO L353 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:41:07,889 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:07,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1117640002, now seen corresponding path program 1 times [2018-07-24 02:41:07,889 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:07,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:07,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:07,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:07,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2018-07-24 02:41:08,215 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:41:08,215 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:41:08,216 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:41:08,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:41:08,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:41:08,216 INFO L87 Difference]: Start difference. First operand 116613 states and 122776 transitions. Second operand 3 states. [2018-07-24 02:41:13,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:13,621 INFO L93 Difference]: Finished difference Result 230962 states and 243250 transitions. [2018-07-24 02:41:13,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:41:13,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 477 [2018-07-24 02:41:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:13,749 INFO L225 Difference]: With dead ends: 230962 [2018-07-24 02:41:13,749 INFO L226 Difference]: Without dead ends: 115103 [2018-07-24 02:41:13,809 INFO L573 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 [2018-07-24 02:41:13,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115103 states. [2018-07-24 02:41:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115103 to 113599. [2018-07-24 02:41:14,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113599 states. [2018-07-24 02:41:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113599 states to 113599 states and 118020 transitions. [2018-07-24 02:41:14,833 INFO L78 Accepts]: Start accepts. Automaton has 113599 states and 118020 transitions. Word has length 477 [2018-07-24 02:41:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:14,834 INFO L471 AbstractCegarLoop]: Abstraction has 113599 states and 118020 transitions. [2018-07-24 02:41:14,834 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:41:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 113599 states and 118020 transitions. [2018-07-24 02:41:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2018-07-24 02:41:14,862 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:14,862 INFO L353 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, 5, 5, 5, 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, 2, 2, 2, 2, 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] [2018-07-24 02:41:14,862 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:14,863 INFO L82 PathProgramCache]: Analyzing trace with hash -241255005, now seen corresponding path program 1 times [2018-07-24 02:41:14,863 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:14,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:14,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:14,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:14,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 568 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-24 02:41:16,394 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:41:16,395 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 02:41:16,395 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:41:16,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:41:16,395 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:41:16,396 INFO L87 Difference]: Start difference. First operand 113599 states and 118020 transitions. Second operand 5 states. [2018-07-24 02:41:24,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:24,338 INFO L93 Difference]: Finished difference Result 229452 states and 238394 transitions. [2018-07-24 02:41:24,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:41:24,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 660 [2018-07-24 02:41:24,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:24,455 INFO L225 Difference]: With dead ends: 229452 [2018-07-24 02:41:24,455 INFO L226 Difference]: Without dead ends: 115101 [2018-07-24 02:41:24,501 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:41:24,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115101 states. [2018-07-24 02:41:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115101 to 113597. [2018-07-24 02:41:25,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113597 states. [2018-07-24 02:41:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113597 states to 113597 states and 117903 transitions. [2018-07-24 02:41:25,455 INFO L78 Accepts]: Start accepts. Automaton has 113597 states and 117903 transitions. Word has length 660 [2018-07-24 02:41:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:25,456 INFO L471 AbstractCegarLoop]: Abstraction has 113597 states and 117903 transitions. [2018-07-24 02:41:25,456 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:41:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 113597 states and 117903 transitions. [2018-07-24 02:41:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2018-07-24 02:41:25,481 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:25,481 INFO L353 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:41:25,481 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:25,482 INFO L82 PathProgramCache]: Analyzing trace with hash -309326183, now seen corresponding path program 1 times [2018-07-24 02:41:25,482 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:25,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:25,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:25,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:25,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 743 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2018-07-24 02:41:26,415 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:41:26,416 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:41:26,416 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:41:26,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:41:26,416 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:41:26,417 INFO L87 Difference]: Start difference. First operand 113597 states and 117903 transitions. Second operand 3 states. [2018-07-24 02:41:33,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:33,014 INFO L93 Difference]: Finished difference Result 247496 states and 257140 transitions. [2018-07-24 02:41:33,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:41:33,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 689 [2018-07-24 02:41:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:33,152 INFO L225 Difference]: With dead ends: 247496 [2018-07-24 02:41:33,152 INFO L226 Difference]: Without dead ends: 134653 [2018-07-24 02:41:33,214 INFO L573 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 [2018-07-24 02:41:33,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134653 states. [2018-07-24 02:41:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134653 to 132397. [2018-07-24 02:41:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132397 states. [2018-07-24 02:41:34,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132397 states to 132397 states and 136663 transitions. [2018-07-24 02:41:34,919 INFO L78 Accepts]: Start accepts. Automaton has 132397 states and 136663 transitions. Word has length 689 [2018-07-24 02:41:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:34,920 INFO L471 AbstractCegarLoop]: Abstraction has 132397 states and 136663 transitions. [2018-07-24 02:41:34,920 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:41:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 132397 states and 136663 transitions. [2018-07-24 02:41:34,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2018-07-24 02:41:34,947 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:34,947 INFO L353 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:41:34,948 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:34,948 INFO L82 PathProgramCache]: Analyzing trace with hash 667411860, now seen corresponding path program 1 times [2018-07-24 02:41:34,948 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:34,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:34,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:34,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:34,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:35,767 WARN L169 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-07-24 02:41:36,153 WARN L169 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-07-24 02:41:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 243 proven. 633 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 02:41:37,590 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:41:37,590 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 02:41:37,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:37,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:41:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-07-24 02:41:38,359 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:41:38,359 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2018-07-24 02:41:38,361 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 02:41:38,362 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 02:41:38,362 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-24 02:41:38,362 INFO L87 Difference]: Start difference. First operand 132397 states and 136663 transitions. Second operand 11 states. [2018-07-24 02:42:09,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:42:09,409 INFO L93 Difference]: Finished difference Result 279078 states and 288114 transitions. [2018-07-24 02:42:09,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 02:42:09,410 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 743 [2018-07-24 02:42:09,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:42:09,555 INFO L225 Difference]: With dead ends: 279078 [2018-07-24 02:42:09,555 INFO L226 Difference]: Without dead ends: 135382 [2018-07-24 02:42:09,604 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 747 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-07-24 02:42:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135382 states. [2018-07-24 02:42:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135382 to 112821. [2018-07-24 02:42:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112821 states. [2018-07-24 02:42:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112821 states to 112821 states and 115270 transitions. [2018-07-24 02:42:10,744 INFO L78 Accepts]: Start accepts. Automaton has 112821 states and 115270 transitions. Word has length 743 [2018-07-24 02:42:10,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:42:10,745 INFO L471 AbstractCegarLoop]: Abstraction has 112821 states and 115270 transitions. [2018-07-24 02:42:10,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 02:42:10,745 INFO L276 IsEmpty]: Start isEmpty. Operand 112821 states and 115270 transitions. [2018-07-24 02:42:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2018-07-24 02:42:10,780 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:42:10,781 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:42:10,781 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:42:10,782 INFO L82 PathProgramCache]: Analyzing trace with hash 317986543, now seen corresponding path program 1 times [2018-07-24 02:42:10,782 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:42:10,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:42:10,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:10,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:42:10,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:42:11,517 WARN L169 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-07-24 02:42:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2018-07-24 02:42:12,481 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:42:12,481 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:42:12,482 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:42:12,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:42:12,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:42:12,483 INFO L87 Difference]: Start difference. First operand 112821 states and 115270 transitions. Second operand 4 states. [2018-07-24 02:42:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:42:23,421 INFO L93 Difference]: Finished difference Result 230152 states and 235145 transitions. [2018-07-24 02:42:23,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:42:23,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 869 [2018-07-24 02:42:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:42:23,533 INFO L225 Difference]: With dead ends: 230152 [2018-07-24 02:42:23,533 INFO L226 Difference]: Without dead ends: 118085 [2018-07-24 02:42:23,586 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:42:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118085 states. [2018-07-24 02:42:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118085 to 115077. [2018-07-24 02:42:24,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115077 states. [2018-07-24 02:42:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115077 states to 115077 states and 117543 transitions. [2018-07-24 02:42:24,560 INFO L78 Accepts]: Start accepts. Automaton has 115077 states and 117543 transitions. Word has length 869 [2018-07-24 02:42:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:42:24,561 INFO L471 AbstractCegarLoop]: Abstraction has 115077 states and 117543 transitions. [2018-07-24 02:42:24,561 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:42:24,561 INFO L276 IsEmpty]: Start isEmpty. Operand 115077 states and 117543 transitions. [2018-07-24 02:42:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2018-07-24 02:42:24,611 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:42:24,611 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 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] [2018-07-24 02:42:24,611 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:42:24,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1838015194, now seen corresponding path program 1 times [2018-07-24 02:42:24,612 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:42:24,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:42:24,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:24,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:42:24,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:42:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 963 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2018-07-24 02:42:26,598 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:42:26,599 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:42:26,599 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:42:26,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:42:26,600 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:42:26,600 INFO L87 Difference]: Start difference. First operand 115077 states and 117543 transitions. Second operand 4 states. Received shutdown request... [2018-07-24 02:42:31,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:42:31,052 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 02:42:31,057 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 02:42:31,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:42:31 BoogieIcfgContainer [2018-07-24 02:42:31,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 02:42:31,058 INFO L168 Benchmark]: Toolchain (without parser) took 236510.14 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -951.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-24 02:42:31,059 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 02:42:31,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2404.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 02:42:31,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 454.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2018-07-24 02:42:31,061 INFO L168 Benchmark]: Boogie Preprocessor took 1099.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 995.6 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. [2018-07-24 02:42:31,062 INFO L168 Benchmark]: RCFGBuilder took 12441.58 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 134.7 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -103.4 MB). Peak memory consumption was 763.4 MB. Max. memory is 7.1 GB. [2018-07-24 02:42:31,063 INFO L168 Benchmark]: TraceAbstraction took 220105.64 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.1 GB). Free memory was 2.5 GB in the beginning and 2.4 GB in the end (delta: 113.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-24 02:42:31,067 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2404.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 454.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1099.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 995.6 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12441.58 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 134.7 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -103.4 MB). Peak memory consumption was 763.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220105.64 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.1 GB). Free memory was 2.5 GB in the beginning and 2.4 GB in the end (delta: 113.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (115077states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (19573 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 220.0s OverallTime, 16 OverallIterations, 6 TraceHistogramMax, 188.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10951 SDtfs, 38313 SDslu, 1455 SDs, 0 SdLazy, 86991 SolverSat, 14191 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 152.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1259 GetRequests, 1192 SyntacticMatches, 18 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132397occurred in iteration=13, 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: 13.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 88077 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 8215 NumberOfCodeBlocks, 8215 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 8196 ConstructedInterpolants, 0 QuantifiedInterpolants, 14364857 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1459 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 8898/9540 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/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_02-42-31-080.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_02-42-31-080.csv Completed graceful shutdown