java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 14:33:48,527 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 14:33:48,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 14:33:48,542 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 14:33:48,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 14:33:48,543 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 14:33:48,544 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 14:33:48,545 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 14:33:48,547 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 14:33:48,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 14:33:48,551 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 14:33:48,552 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 14:33:48,553 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 14:33:48,553 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 14:33:48,554 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 14:33:48,557 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 14:33:48,558 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 14:33:48,560 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 14:33:48,572 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 14:33:48,574 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 14:33:48,575 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 14:33:48,576 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 14:33:48,578 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 14:33:48,578 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 14:33:48,578 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 14:33:48,579 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 14:33:48,580 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 14:33:48,580 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 14:33:48,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 14:33:48,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 14:33:48,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 14:33:48,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 14:33:48,589 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 14:33:48,603 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 14:33:48,604 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 14:33:48,604 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 14:33:48,605 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 14:33:48,605 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 14:33:48,605 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 14:33:48,605 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 14:33:48,606 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 14:33:48,606 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 14:33:48,606 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 14:33:48,606 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 14:33:48,606 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 14:33:48,606 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 14:33:48,607 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 14:33:48,607 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 14:33:48,607 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 14:33:48,607 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 14:33:48,607 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 14:33:48,608 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 14:33:48,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 14:33:48,608 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 14:33:48,608 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 14:33:48,608 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 14:33:48,608 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 14:33:48,609 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 14:33:48,609 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 14:33:48,609 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 14:33:48,609 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 14:33:48,609 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 14:33:48,657 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 14:33:48,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 14:33:48,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 14:33:48,678 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 14:33:48,679 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 14:33:48,680 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label44_true-unreach-call.c [2018-07-22 14:33:49,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/cb18c7aa7/ce2bba6d17e9402a988c5ca4020fb3a4/FLAG79a8ae5d4 [2018-07-22 14:33:49,483 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 14:33:49,484 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label44_true-unreach-call.c [2018-07-22 14:33:49,525 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/cb18c7aa7/ce2bba6d17e9402a988c5ca4020fb3a4/FLAG79a8ae5d4 [2018-07-22 14:33:49,545 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/cb18c7aa7/ce2bba6d17e9402a988c5ca4020fb3a4 [2018-07-22 14:33:49,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 14:33:49,565 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 14:33:49,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 14:33:49,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 14:33:49,573 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 14:33:49,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:33:49" (1/1) ... [2018-07-22 14:33:49,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5916e1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:49, skipping insertion in model container [2018-07-22 14:33:49,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:33:49" (1/1) ... [2018-07-22 14:33:49,882 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 14:33:50,823 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:33:50,841 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 14:33:51,366 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:33:51,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51 WrapperNode [2018-07-22 14:33:51,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 14:33:51,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 14:33:51,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 14:33:51,680 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 14:33:51,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:51,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:52,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 14:33:52,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 14:33:52,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 14:33:52,025 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 14:33:52,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:52,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:52,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:52,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:52,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:53,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:53,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... [2018-07-22 14:33:53,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 14:33:53,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 14:33:53,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 14:33:53,107 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 14:33:53,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 14:33:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 14:33:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 14:33:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 14:34:04,518 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 14:34:04,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:34:04 BoogieIcfgContainer [2018-07-22 14:34:04,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 14:34:04,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 14:34:04,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 14:34:04,523 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 14:34:04,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:33:49" (1/3) ... [2018-07-22 14:34:04,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225c26d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:34:04, skipping insertion in model container [2018-07-22 14:34:04,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:33:51" (2/3) ... [2018-07-22 14:34:04,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225c26d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:34:04, skipping insertion in model container [2018-07-22 14:34:04,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:34:04" (3/3) ... [2018-07-22 14:34:04,527 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label44_true-unreach-call.c [2018-07-22 14:34:04,535 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 14:34:04,543 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 14:34:04,607 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 14:34:04,608 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 14:34:04,608 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 14:34:04,609 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 14:34:04,609 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 14:34:04,609 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 14:34:04,609 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 14:34:04,609 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 14:34:04,609 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 14:34:04,641 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-07-22 14:34:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-22 14:34:04,649 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:34:04,650 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:34:04,650 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:34:04,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1502078046, now seen corresponding path program 1 times [2018-07-22 14:34:04,656 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:34:04,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:34:04,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:04,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:34:04,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:34:05,074 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-22 14:34:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:34:05,103 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:34:05,103 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:34:05,106 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:34:05,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:34:05,122 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:34:05,125 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-07-22 14:34:12,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:34:12,777 INFO L93 Difference]: Finished difference Result 2078 states and 3883 transitions. [2018-07-22 14:34:12,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:34:12,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-07-22 14:34:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:34:12,808 INFO L225 Difference]: With dead ends: 2078 [2018-07-22 14:34:12,808 INFO L226 Difference]: Without dead ends: 1480 [2018-07-22 14:34:12,816 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:34:12,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2018-07-22 14:34:12,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1019. [2018-07-22 14:34:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2018-07-22 14:34:12,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1572 transitions. [2018-07-22 14:34:12,943 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1572 transitions. Word has length 36 [2018-07-22 14:34:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:34:12,944 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1572 transitions. [2018-07-22 14:34:12,944 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:34:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1572 transitions. [2018-07-22 14:34:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-22 14:34:12,949 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:34:12,950 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:34:12,950 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:34:12,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1524085169, now seen corresponding path program 1 times [2018-07-22 14:34:12,951 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:34:12,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:34:12,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:12,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:34:12,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:34:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:34:13,433 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:34:13,433 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:34:13,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:34:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:34:13,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:34:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:34:13,924 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:34:13,924 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 14:34:13,925 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 14:34:13,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 14:34:13,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 14:34:13,930 INFO L87 Difference]: Start difference. First operand 1019 states and 1572 transitions. Second operand 7 states. [2018-07-22 14:34:28,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:34:28,736 INFO L93 Difference]: Finished difference Result 5117 states and 7877 transitions. [2018-07-22 14:34:28,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 14:34:28,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2018-07-22 14:34:28,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:34:28,770 INFO L225 Difference]: With dead ends: 5117 [2018-07-22 14:34:28,770 INFO L226 Difference]: Without dead ends: 4100 [2018-07-22 14:34:28,775 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 14:34:28,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2018-07-22 14:34:28,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3198. [2018-07-22 14:34:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3198 states. [2018-07-22 14:34:28,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 4382 transitions. [2018-07-22 14:34:28,897 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 4382 transitions. Word has length 107 [2018-07-22 14:34:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:34:28,897 INFO L471 AbstractCegarLoop]: Abstraction has 3198 states and 4382 transitions. [2018-07-22 14:34:28,898 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 14:34:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 4382 transitions. [2018-07-22 14:34:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-22 14:34:28,912 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:34:28,913 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:34:28,913 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:34:28,913 INFO L82 PathProgramCache]: Analyzing trace with hash -144387020, now seen corresponding path program 1 times [2018-07-22 14:34:28,913 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:34:28,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:34:28,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:28,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:34:28,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:34:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:34:29,287 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:34:29,288 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:34:29,288 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:34:29,288 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:34:29,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:34:29,289 INFO L87 Difference]: Start difference. First operand 3198 states and 4382 transitions. Second operand 5 states. [2018-07-22 14:34:41,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:34:41,442 INFO L93 Difference]: Finished difference Result 11575 states and 16205 transitions. [2018-07-22 14:34:41,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:34:41,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2018-07-22 14:34:41,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:34:41,481 INFO L225 Difference]: With dead ends: 11575 [2018-07-22 14:34:41,482 INFO L226 Difference]: Without dead ends: 8379 [2018-07-22 14:34:41,487 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:34:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2018-07-22 14:34:41,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 5759. [2018-07-22 14:34:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5759 states. [2018-07-22 14:34:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 7420 transitions. [2018-07-22 14:34:41,654 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 7420 transitions. Word has length 142 [2018-07-22 14:34:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:34:41,655 INFO L471 AbstractCegarLoop]: Abstraction has 5759 states and 7420 transitions. [2018-07-22 14:34:41,655 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:34:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 7420 transitions. [2018-07-22 14:34:41,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-22 14:34:41,657 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:34:41,657 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:34:41,657 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:34:41,663 INFO L82 PathProgramCache]: Analyzing trace with hash -504476443, now seen corresponding path program 1 times [2018-07-22 14:34:41,663 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:34:41,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:34:41,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:41,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:34:41,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:34:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:34:42,135 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:34:42,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:34:42,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:34:42,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:34:42,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:34:42,137 INFO L87 Difference]: Start difference. First operand 5759 states and 7420 transitions. Second operand 4 states. [2018-07-22 14:34:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:34:48,191 INFO L93 Difference]: Finished difference Result 18770 states and 24886 transitions. [2018-07-22 14:34:48,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:34:48,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2018-07-22 14:34:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:34:48,224 INFO L225 Difference]: With dead ends: 18770 [2018-07-22 14:34:48,224 INFO L226 Difference]: Without dead ends: 9934 [2018-07-22 14:34:48,234 INFO L578 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 [2018-07-22 14:34:48,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9934 states. [2018-07-22 14:34:48,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9934 to 9934. [2018-07-22 14:34:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9934 states. [2018-07-22 14:34:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9934 states to 9934 states and 11177 transitions. [2018-07-22 14:34:48,433 INFO L78 Accepts]: Start accepts. Automaton has 9934 states and 11177 transitions. Word has length 148 [2018-07-22 14:34:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:34:48,434 INFO L471 AbstractCegarLoop]: Abstraction has 9934 states and 11177 transitions. [2018-07-22 14:34:48,434 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:34:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 9934 states and 11177 transitions. [2018-07-22 14:34:48,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-07-22 14:34:48,443 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:34:48,444 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:34:48,444 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:34:48,444 INFO L82 PathProgramCache]: Analyzing trace with hash 833670123, now seen corresponding path program 1 times [2018-07-22 14:34:48,444 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:34:48,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:34:48,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:48,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:34:48,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:34:48,823 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:34:48,825 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:34:48,825 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:34:48,825 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:34:48,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:34:48,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:34:48,826 INFO L87 Difference]: Start difference. First operand 9934 states and 11177 transitions. Second operand 4 states. [2018-07-22 14:34:51,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:34:51,930 INFO L93 Difference]: Finished difference Result 19865 states and 22473 transitions. [2018-07-22 14:34:51,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:34:51,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 209 [2018-07-22 14:34:51,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:34:51,964 INFO L225 Difference]: With dead ends: 19865 [2018-07-22 14:34:51,964 INFO L226 Difference]: Without dead ends: 10359 [2018-07-22 14:34:51,975 INFO L578 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 [2018-07-22 14:34:51,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10359 states. [2018-07-22 14:34:52,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10359 to 9933. [2018-07-22 14:34:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9933 states. [2018-07-22 14:34:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 10784 transitions. [2018-07-22 14:34:52,165 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 10784 transitions. Word has length 209 [2018-07-22 14:34:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:34:52,166 INFO L471 AbstractCegarLoop]: Abstraction has 9933 states and 10784 transitions. [2018-07-22 14:34:52,166 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:34:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 10784 transitions. [2018-07-22 14:34:52,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-07-22 14:34:52,172 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:34:52,172 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:34:52,172 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:34:52,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1935791750, now seen corresponding path program 1 times [2018-07-22 14:34:52,173 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:34:52,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:34:52,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:52,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:34:52,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:34:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:34:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-22 14:34:52,684 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:34:52,684 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:34:52,685 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:34:52,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:34:52,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:34:52,685 INFO L87 Difference]: Start difference. First operand 9933 states and 10784 transitions. Second operand 4 states. [2018-07-22 14:35:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:35:00,124 INFO L93 Difference]: Finished difference Result 27145 states and 29800 transitions. [2018-07-22 14:35:00,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:35:00,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 258 [2018-07-22 14:35:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:35:00,154 INFO L225 Difference]: With dead ends: 27145 [2018-07-22 14:35:00,154 INFO L226 Difference]: Without dead ends: 17640 [2018-07-22 14:35:00,163 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:35:00,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17640 states. [2018-07-22 14:35:00,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17640 to 17187. [2018-07-22 14:35:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17187 states. [2018-07-22 14:35:00,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17187 states to 17187 states and 18631 transitions. [2018-07-22 14:35:00,415 INFO L78 Accepts]: Start accepts. Automaton has 17187 states and 18631 transitions. Word has length 258 [2018-07-22 14:35:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:35:00,417 INFO L471 AbstractCegarLoop]: Abstraction has 17187 states and 18631 transitions. [2018-07-22 14:35:00,417 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:35:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 17187 states and 18631 transitions. [2018-07-22 14:35:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-07-22 14:35:00,423 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:35:00,424 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:35:00,424 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:35:00,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1753360900, now seen corresponding path program 1 times [2018-07-22 14:35:00,424 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:35:00,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:35:00,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:00,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:00,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-07-22 14:35:00,748 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:35:00,748 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:35:00,749 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 14:35:00,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 14:35:00,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:00,749 INFO L87 Difference]: Start difference. First operand 17187 states and 18631 transitions. Second operand 3 states. [2018-07-22 14:35:02,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:35:02,920 INFO L93 Difference]: Finished difference Result 42458 states and 46252 transitions. [2018-07-22 14:35:02,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:35:02,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2018-07-22 14:35:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:35:02,955 INFO L225 Difference]: With dead ends: 42458 [2018-07-22 14:35:02,955 INFO L226 Difference]: Without dead ends: 23985 [2018-07-22 14:35:02,974 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23985 states. [2018-07-22 14:35:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23985 to 23982. [2018-07-22 14:35:03,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23982 states. [2018-07-22 14:35:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23982 states to 23982 states and 25679 transitions. [2018-07-22 14:35:03,299 INFO L78 Accepts]: Start accepts. Automaton has 23982 states and 25679 transitions. Word has length 294 [2018-07-22 14:35:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:35:03,300 INFO L471 AbstractCegarLoop]: Abstraction has 23982 states and 25679 transitions. [2018-07-22 14:35:03,303 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 14:35:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 23982 states and 25679 transitions. [2018-07-22 14:35:03,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2018-07-22 14:35:03,352 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:35:03,352 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:35:03,352 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:35:03,353 INFO L82 PathProgramCache]: Analyzing trace with hash -890559388, now seen corresponding path program 1 times [2018-07-22 14:35:03,353 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:35:03,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:35:03,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:03,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:03,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-22 14:35:04,474 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:35:04,475 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:35:04,475 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 14:35:04,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 14:35:04,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:04,476 INFO L87 Difference]: Start difference. First operand 23982 states and 25679 transitions. Second operand 3 states. [2018-07-22 14:35:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:35:06,588 INFO L93 Difference]: Finished difference Result 52222 states and 55994 transitions. [2018-07-22 14:35:06,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:35:06,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 657 [2018-07-22 14:35:06,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:35:06,616 INFO L225 Difference]: With dead ends: 52222 [2018-07-22 14:35:06,617 INFO L226 Difference]: Without dead ends: 28668 [2018-07-22 14:35:06,638 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:06,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28668 states. [2018-07-22 14:35:06,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28668 to 28242. [2018-07-22 14:35:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28242 states. [2018-07-22 14:35:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28242 states to 28242 states and 30076 transitions. [2018-07-22 14:35:06,975 INFO L78 Accepts]: Start accepts. Automaton has 28242 states and 30076 transitions. Word has length 657 [2018-07-22 14:35:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:35:06,977 INFO L471 AbstractCegarLoop]: Abstraction has 28242 states and 30076 transitions. [2018-07-22 14:35:06,977 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 14:35:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 28242 states and 30076 transitions. [2018-07-22 14:35:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2018-07-22 14:35:07,027 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:35:07,028 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-07-22 14:35:07,028 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:35:07,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1223936923, now seen corresponding path program 1 times [2018-07-22 14:35:07,028 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:35:07,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:35:07,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:07,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:07,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2018-07-22 14:35:07,717 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:35:07,717 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 14:35:07,718 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 14:35:07,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 14:35:07,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:07,719 INFO L87 Difference]: Start difference. First operand 28242 states and 30076 transitions. Second operand 3 states. [2018-07-22 14:35:09,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:35:09,091 INFO L93 Difference]: Finished difference Result 55192 states and 58822 transitions. [2018-07-22 14:35:09,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:35:09,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 748 [2018-07-22 14:35:09,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:35:09,135 INFO L225 Difference]: With dead ends: 55192 [2018-07-22 14:35:09,136 INFO L226 Difference]: Without dead ends: 27377 [2018-07-22 14:35:09,153 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:09,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27377 states. [2018-07-22 14:35:09,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27377 to 27373. [2018-07-22 14:35:09,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27373 states. [2018-07-22 14:35:09,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27373 states to 27373 states and 29151 transitions. [2018-07-22 14:35:09,440 INFO L78 Accepts]: Start accepts. Automaton has 27373 states and 29151 transitions. Word has length 748 [2018-07-22 14:35:09,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:35:09,441 INFO L471 AbstractCegarLoop]: Abstraction has 27373 states and 29151 transitions. [2018-07-22 14:35:09,441 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 14:35:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 27373 states and 29151 transitions. [2018-07-22 14:35:09,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2018-07-22 14:35:09,475 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:35:09,477 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:35:09,477 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:35:09,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1135267625, now seen corresponding path program 1 times [2018-07-22 14:35:09,478 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:35:09,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:35:09,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:09,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:09,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 379 proven. 461 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:35:10,961 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:35:10,961 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:35:10,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:11,231 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:35:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 445 proven. 83 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-07-22 14:35:12,431 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:35:12,432 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 7 [2018-07-22 14:35:12,433 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-22 14:35:12,433 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-22 14:35:12,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-22 14:35:12,434 INFO L87 Difference]: Start difference. First operand 27373 states and 29151 transitions. Second operand 8 states. [2018-07-22 14:35:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:35:24,662 INFO L93 Difference]: Finished difference Result 73118 states and 78070 transitions. [2018-07-22 14:35:24,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-22 14:35:24,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 787 [2018-07-22 14:35:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:35:24,708 INFO L225 Difference]: With dead ends: 73118 [2018-07-22 14:35:24,708 INFO L226 Difference]: Without dead ends: 45745 [2018-07-22 14:35:24,721 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 785 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-22 14:35:24,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45745 states. [2018-07-22 14:35:25,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45745 to 42304. [2018-07-22 14:35:25,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42304 states. [2018-07-22 14:35:25,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42304 states to 42304 states and 44850 transitions. [2018-07-22 14:35:25,089 INFO L78 Accepts]: Start accepts. Automaton has 42304 states and 44850 transitions. Word has length 787 [2018-07-22 14:35:25,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:35:25,090 INFO L471 AbstractCegarLoop]: Abstraction has 42304 states and 44850 transitions. [2018-07-22 14:35:25,090 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-22 14:35:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 42304 states and 44850 transitions. [2018-07-22 14:35:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2018-07-22 14:35:25,117 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:35:25,118 INFO L358 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:35:25,118 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:35:25,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1034452598, now seen corresponding path program 1 times [2018-07-22 14:35:25,119 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:35:25,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:35:25,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:25,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:25,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1267 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2018-07-22 14:35:26,133 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:35:26,134 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:35:26,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 14:35:26,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 14:35:26,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:26,135 INFO L87 Difference]: Start difference. First operand 42304 states and 44850 transitions. Second operand 3 states. [2018-07-22 14:35:28,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:35:28,160 INFO L93 Difference]: Finished difference Result 83308 states and 88707 transitions. [2018-07-22 14:35:28,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:35:28,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 869 [2018-07-22 14:35:28,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:35:28,195 INFO L225 Difference]: With dead ends: 83308 [2018-07-22 14:35:28,195 INFO L226 Difference]: Without dead ends: 46122 [2018-07-22 14:35:28,210 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:35:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46122 states. [2018-07-22 14:35:28,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46122 to 45269. [2018-07-22 14:35:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45269 states. [2018-07-22 14:35:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45269 states to 45269 states and 48093 transitions. [2018-07-22 14:35:28,717 INFO L78 Accepts]: Start accepts. Automaton has 45269 states and 48093 transitions. Word has length 869 [2018-07-22 14:35:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:35:28,718 INFO L471 AbstractCegarLoop]: Abstraction has 45269 states and 48093 transitions. [2018-07-22 14:35:28,718 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 14:35:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 45269 states and 48093 transitions. [2018-07-22 14:35:28,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2018-07-22 14:35:28,750 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:35:28,750 INFO L358 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:35:28,751 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:35:28,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1625417463, now seen corresponding path program 1 times [2018-07-22 14:35:28,751 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:35:28,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:35:28,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:28,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:28,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:35:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 674 proven. 83 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-07-22 14:35:30,673 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:35:30,673 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:35:30,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:35:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:35:30,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:35:32,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 731 proven. 272 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-07-22 14:35:32,808 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:35:32,808 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2018-07-22 14:35:32,809 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-22 14:35:32,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-22 14:35:32,810 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-07-22 14:35:32,811 INFO L87 Difference]: Start difference. First operand 45269 states and 48093 transitions. Second operand 13 states. [2018-07-22 14:36:02,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:36:02,504 INFO L93 Difference]: Finished difference Result 101061 states and 107515 transitions. [2018-07-22 14:36:02,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-22 14:36:02,505 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 913 [2018-07-22 14:36:02,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:36:02,572 INFO L225 Difference]: With dead ends: 101061 [2018-07-22 14:36:02,572 INFO L226 Difference]: Without dead ends: 57498 [2018-07-22 14:36:02,600 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 909 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2018-07-22 14:36:02,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57498 states. [2018-07-22 14:36:03,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57498 to 52938. [2018-07-22 14:36:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52938 states. [2018-07-22 14:36:03,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52938 states to 52938 states and 55780 transitions. [2018-07-22 14:36:03,108 INFO L78 Accepts]: Start accepts. Automaton has 52938 states and 55780 transitions. Word has length 913 [2018-07-22 14:36:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:36:03,109 INFO L471 AbstractCegarLoop]: Abstraction has 52938 states and 55780 transitions. [2018-07-22 14:36:03,109 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-22 14:36:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 52938 states and 55780 transitions. [2018-07-22 14:36:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2018-07-22 14:36:03,153 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:36:03,154 INFO L358 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:36:03,154 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:36:03,154 INFO L82 PathProgramCache]: Analyzing trace with hash -826393476, now seen corresponding path program 1 times [2018-07-22 14:36:03,154 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:36:03,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:36:03,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:36:03,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:36:03,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:36:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:36:04,178 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-07-22 14:36:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 748 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2018-07-22 14:36:05,039 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:36:05,075 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 14:36:05,076 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:36:05,076 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:36:05,076 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:36:05,076 INFO L87 Difference]: Start difference. First operand 52938 states and 55780 transitions. Second operand 5 states. [2018-07-22 14:36:12,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:36:12,691 INFO L93 Difference]: Finished difference Result 104170 states and 110157 transitions. [2018-07-22 14:36:12,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:36:12,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1021 [2018-07-22 14:36:12,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:36:12,744 INFO L225 Difference]: With dead ends: 104170 [2018-07-22 14:36:12,744 INFO L226 Difference]: Without dead ends: 58482 [2018-07-22 14:36:12,765 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:36:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58482 states. [2018-07-22 14:36:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58482 to 51651. [2018-07-22 14:36:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51651 states. [2018-07-22 14:36:13,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51651 states to 51651 states and 54377 transitions. [2018-07-22 14:36:13,298 INFO L78 Accepts]: Start accepts. Automaton has 51651 states and 54377 transitions. Word has length 1021 [2018-07-22 14:36:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:36:13,299 INFO L471 AbstractCegarLoop]: Abstraction has 51651 states and 54377 transitions. [2018-07-22 14:36:13,300 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:36:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand 51651 states and 54377 transitions. [2018-07-22 14:36:13,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2018-07-22 14:36:13,337 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:36:13,338 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:36:13,338 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:36:13,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1685651053, now seen corresponding path program 1 times [2018-07-22 14:36:13,339 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:36:13,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:36:13,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:36:13,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:36:13,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:36:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:36:14,631 WARN L169 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-07-22 14:36:14,911 WARN L169 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-07-22 14:36:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1849 backedges. 1201 proven. 336 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-07-22 14:36:16,977 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:36:16,978 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:36:16,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:36:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:36:17,242 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:36:18,016 WARN L169 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2018-07-22 14:36:18,377 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-07-22 14:36:22,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1849 backedges. 944 proven. 905 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:36:22,238 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:36:22,260 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 19 [2018-07-22 14:36:22,261 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-22 14:36:22,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-22 14:36:22,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-07-22 14:36:22,262 INFO L87 Difference]: Start difference. First operand 51651 states and 54377 transitions. Second operand 19 states. [2018-07-22 14:37:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:37:15,062 INFO L93 Difference]: Finished difference Result 144967 states and 153973 transitions. [2018-07-22 14:37:15,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-22 14:37:15,063 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1041 [2018-07-22 14:37:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:37:15,141 INFO L225 Difference]: With dead ends: 144967 [2018-07-22 14:37:15,141 INFO L226 Difference]: Without dead ends: 95022 [2018-07-22 14:37:15,155 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1231 GetRequests, 1120 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4862 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=3010, Invalid=8980, Unknown=0, NotChecked=0, Total=11990 [2018-07-22 14:37:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95022 states. [2018-07-22 14:37:15,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95022 to 64441. [2018-07-22 14:37:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64441 states. [2018-07-22 14:37:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64441 states to 64441 states and 68033 transitions. [2018-07-22 14:37:15,894 INFO L78 Accepts]: Start accepts. Automaton has 64441 states and 68033 transitions. Word has length 1041 [2018-07-22 14:37:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:37:15,895 INFO L471 AbstractCegarLoop]: Abstraction has 64441 states and 68033 transitions. [2018-07-22 14:37:15,895 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-22 14:37:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 64441 states and 68033 transitions. [2018-07-22 14:37:15,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2018-07-22 14:37:15,928 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:37:15,929 INFO L358 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:37:15,929 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:37:15,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1497109491, now seen corresponding path program 1 times [2018-07-22 14:37:15,929 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:37:15,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:37:15,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:37:15,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:37:15,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:37:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:37:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1652 proven. 238 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-22 14:37:17,762 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:37:17,762 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:37:17,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:37:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:37:18,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:37:19,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1890 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-22 14:37:19,128 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:37:19,128 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 6 [2018-07-22 14:37:19,129 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 14:37:19,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 14:37:19,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:37:19,130 INFO L87 Difference]: Start difference. First operand 64441 states and 68033 transitions. Second operand 6 states. [2018-07-22 14:37:28,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:37:28,754 INFO L93 Difference]: Finished difference Result 141267 states and 149046 transitions. [2018-07-22 14:37:28,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:37:28,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1130 [2018-07-22 14:37:28,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:37:28,834 INFO L225 Difference]: With dead ends: 141267 [2018-07-22 14:37:28,835 INFO L226 Difference]: Without dead ends: 84500 [2018-07-22 14:37:28,864 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1136 GetRequests, 1131 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:37:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84500 states. [2018-07-22 14:37:29,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84500 to 75959. [2018-07-22 14:37:29,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75959 states. [2018-07-22 14:37:30,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75959 states to 75959 states and 79959 transitions. [2018-07-22 14:37:30,141 INFO L78 Accepts]: Start accepts. Automaton has 75959 states and 79959 transitions. Word has length 1130 [2018-07-22 14:37:30,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:37:30,142 INFO L471 AbstractCegarLoop]: Abstraction has 75959 states and 79959 transitions. [2018-07-22 14:37:30,142 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 14:37:30,142 INFO L276 IsEmpty]: Start isEmpty. Operand 75959 states and 79959 transitions. [2018-07-22 14:37:30,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2018-07-22 14:37:30,197 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:37:30,198 INFO L358 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:37:30,198 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:37:30,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1197673555, now seen corresponding path program 1 times [2018-07-22 14:37:30,199 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:37:30,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:37:30,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:37:30,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:37:30,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:37:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:37:31,296 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-07-22 14:37:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2481 backedges. 1011 proven. 29 refuted. 0 times theorem prover too weak. 1441 trivial. 0 not checked. [2018-07-22 14:37:32,528 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:37:32,528 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-22 14:37:32,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:37:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:37:32,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:37:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2481 backedges. 1040 proven. 0 refuted. 0 times theorem prover too weak. 1441 trivial. 0 not checked. [2018-07-22 14:37:33,854 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:37:33,855 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2018-07-22 14:37:33,855 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:37:33,856 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:37:33,856 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:37:33,856 INFO L87 Difference]: Start difference. First operand 75959 states and 79959 transitions. Second operand 5 states. [2018-07-22 14:37:38,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:37:38,093 INFO L93 Difference]: Finished difference Result 150646 states and 158540 transitions. [2018-07-22 14:37:38,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:37:38,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1146 [2018-07-22 14:37:38,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:37:38,160 INFO L225 Difference]: With dead ends: 150646 [2018-07-22 14:37:38,160 INFO L226 Difference]: Without dead ends: 80653 [2018-07-22 14:37:38,186 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1150 GetRequests, 1146 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:37:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80653 states. [2018-07-22 14:37:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80653 to 78085. [2018-07-22 14:37:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78085 states. [2018-07-22 14:37:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78085 states to 78085 states and 82150 transitions. [2018-07-22 14:37:38,883 INFO L78 Accepts]: Start accepts. Automaton has 78085 states and 82150 transitions. Word has length 1146 [2018-07-22 14:37:38,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:37:38,913 INFO L471 AbstractCegarLoop]: Abstraction has 78085 states and 82150 transitions. [2018-07-22 14:37:38,913 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:37:38,913 INFO L276 IsEmpty]: Start isEmpty. Operand 78085 states and 82150 transitions. [2018-07-22 14:37:38,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2018-07-22 14:37:38,962 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:37:38,962 INFO L358 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 14:37:38,962 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:37:38,963 INFO L82 PathProgramCache]: Analyzing trace with hash 664172733, now seen corresponding path program 1 times [2018-07-22 14:37:38,963 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:37:38,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:37:38,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:37:38,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:37:38,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:37:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-22 14:37:39,652 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,652 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,652 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,653 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,653 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,653 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,654 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,654 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,654 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,655 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,656 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,656 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,656 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,656 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,657 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,657 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,657 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,658 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,658 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,658 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,659 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,659 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,659 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,659 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,660 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,660 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,660 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,660 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,662 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,663 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,663 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,663 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,663 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,664 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,664 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,664 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,664 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,665 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,665 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,665 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,665 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,666 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,674 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,674 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,674 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,675 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,675 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,675 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,675 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,676 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,676 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,676 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,676 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,677 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,677 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,677 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,677 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,678 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,678 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-07-22 14:37:39,682 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 14:37:39,687 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 14:37:39,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:37:39 BoogieIcfgContainer [2018-07-22 14:37:39,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 14:37:39,689 INFO L168 Benchmark]: Toolchain (without parser) took 230130.69 ms. Allocated memory was 309.9 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 247.9 MB in the beginning and 583.5 MB in the end (delta: -335.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-07-22 14:37:39,689 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 14:37:39,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2112.68 ms. Allocated memory was 309.9 MB in the beginning and 397.9 MB in the end (delta: 88.1 MB). Free memory was 245.9 MB in the beginning and 332.9 MB in the end (delta: -87.1 MB). Peak memory consumption was 124.9 MB. Max. memory is 5.3 GB. [2018-07-22 14:37:39,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 345.37 ms. Allocated memory is still 397.9 MB. Free memory was 332.9 MB in the beginning and 265.7 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 5.3 GB. [2018-07-22 14:37:39,692 INFO L168 Benchmark]: Boogie Preprocessor took 1080.27 ms. Allocated memory was 397.9 MB in the beginning and 620.2 MB in the end (delta: 222.3 MB). Free memory was 265.7 MB in the beginning and 516.5 MB in the end (delta: -250.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 5.3 GB. [2018-07-22 14:37:39,693 INFO L168 Benchmark]: RCFGBuilder took 11413.22 ms. Allocated memory was 620.2 MB in the beginning and 729.8 MB in the end (delta: 109.6 MB). Free memory was 516.5 MB in the beginning and 499.2 MB in the end (delta: 17.3 MB). Peak memory consumption was 207.9 MB. Max. memory is 5.3 GB. [2018-07-22 14:37:39,693 INFO L168 Benchmark]: TraceAbstraction took 215168.29 ms. Allocated memory was 729.8 MB in the beginning and 2.2 GB in the end (delta: 1.4 GB). Free memory was 494.1 MB in the beginning and 583.5 MB in the end (delta: -89.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-07-22 14:37:39,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2112.68 ms. Allocated memory was 309.9 MB in the beginning and 397.9 MB in the end (delta: 88.1 MB). Free memory was 245.9 MB in the beginning and 332.9 MB in the end (delta: -87.1 MB). Peak memory consumption was 124.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 345.37 ms. Allocated memory is still 397.9 MB. Free memory was 332.9 MB in the beginning and 265.7 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1080.27 ms. Allocated memory was 397.9 MB in the beginning and 620.2 MB in the end (delta: 222.3 MB). Free memory was 265.7 MB in the beginning and 516.5 MB in the end (delta: -250.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11413.22 ms. Allocated memory was 620.2 MB in the beginning and 729.8 MB in the end (delta: 109.6 MB). Free memory was 516.5 MB in the beginning and 499.2 MB in the end (delta: 17.3 MB). Peak memory consumption was 207.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 215168.29 ms. Allocated memory was 729.8 MB in the beginning and 2.2 GB in the end (delta: 1.4 GB). Free memory was 494.1 MB in the beginning and 583.5 MB in the end (delta: -89.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 113). Cancelled while BasicCegarLoop was analyzing trace of length 1159 with TraceHistMax 8, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while NestedInterpolantsBuilder was constructing predicates for 1157 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 215.0s OverallTime, 17 OverallIterations, 8 TraceHistogramMax, 176.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6697 SDtfs, 44883 SDslu, 2988 SDs, 0 SdLazy, 88444 SolverSat, 11367 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 151.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5387 GetRequests, 5213 SyntacticMatches, 13 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4916 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78085occurred in iteration=16, 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: 6.6s AutomataMinimizationTime, 16 MinimizatonAttempts, 62670 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 19.6s InterpolantComputationTime, 14630 NumberOfCodeBlocks, 14630 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 14608 ConstructedInterpolants, 914 QuantifiedInterpolants, 55136510 SizeOfPredicates, 11 NumberOfNonLiveVariables, 6142 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 19875/22315 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label44_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_14-37-39-717.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label44_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_14-37-39-717.csv Completed graceful shutdown