java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:17:18,505 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:17:18,512 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:17:18,527 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:17:18,528 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:17:18,529 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:17:18,530 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:17:18,532 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:17:18,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:17:18,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:17:18,535 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:17:18,536 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:17:18,537 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:17:18,538 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:17:18,539 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:17:18,539 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:17:18,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:17:18,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:17:18,544 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:17:18,546 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:17:18,547 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:17:18,548 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:17:18,550 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:17:18,550 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:17:18,551 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:17:18,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:17:18,552 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:17:18,558 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:17:18,558 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:17:18,559 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:17:18,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:17:18,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 16:17:18,565 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 16:17:18,597 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:17:18,598 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:17:18,598 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:17:18,599 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:17:18,599 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:17:18,600 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:17:18,600 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:17:18,600 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:17:18,600 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:17:18,600 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:17:18,601 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:17:18,601 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:17:18,601 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:17:18,601 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:17:18,601 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:17:18,602 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:17:18,603 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:17:18,603 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:17:18,603 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:17:18,603 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:17:18,604 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:17:18,604 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:17:18,604 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:17:18,604 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:17:18,604 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:17:18,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:17:18,605 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:17:18,605 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:17:18,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:17:18,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:17:18,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:17:18,673 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:17:18,674 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:17:18,675 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label57_true-unreach-call.c [2018-10-24 16:17:18,734 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/11bc4e614/b9f121867f48436a96bb1a3a376bff0e/FLAGf1b629f21 [2018-10-24 16:17:19,485 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:17:19,486 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label57_true-unreach-call.c [2018-10-24 16:17:19,520 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/11bc4e614/b9f121867f48436a96bb1a3a376bff0e/FLAGf1b629f21 [2018-10-24 16:17:19,541 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/11bc4e614/b9f121867f48436a96bb1a3a376bff0e [2018-10-24 16:17:19,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:17:19,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:17:19,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:17:19,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:17:19,565 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:17:19,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:17:19" (1/1) ... [2018-10-24 16:17:19,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441f49ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:19, skipping insertion in model container [2018-10-24 16:17:19,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:17:19" (1/1) ... [2018-10-24 16:17:19,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:17:19,747 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:17:21,150 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:17:21,154 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:17:21,965 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:17:22,004 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:17:22,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22 WrapperNode [2018-10-24 16:17:22,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:17:22,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:17:22,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:17:22,008 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:17:22,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:22,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:22,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:17:22,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:17:22,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:17:22,664 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:17:22,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:22,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:22,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:22,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:22,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:22,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:23,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... [2018-10-24 16:17:23,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:17:23,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:17:23,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:17:23,100 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:17:23,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 16:17:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:17:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:17:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:17:32,820 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:17:32,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:17:32 BoogieIcfgContainer [2018-10-24 16:17:32,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:17:32,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:17:32,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:17:32,826 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:17:32,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:17:19" (1/3) ... [2018-10-24 16:17:32,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267fd4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:17:32, skipping insertion in model container [2018-10-24 16:17:32,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:17:22" (2/3) ... [2018-10-24 16:17:32,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267fd4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:17:32, skipping insertion in model container [2018-10-24 16:17:32,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:17:32" (3/3) ... [2018-10-24 16:17:32,831 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label57_true-unreach-call.c [2018-10-24 16:17:32,842 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:17:32,856 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:17:32,874 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:17:32,925 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:17:32,926 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:17:32,926 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:17:32,926 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:17:32,926 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:17:32,926 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:17:32,926 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:17:32,926 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:17:32,927 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:17:32,967 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-24 16:17:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-24 16:17:32,976 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:17:32,977 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:17:32,980 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:17:32,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:17:32,985 INFO L82 PathProgramCache]: Analyzing trace with hash -387853398, now seen corresponding path program 1 times [2018-10-24 16:17:32,987 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:17:32,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:17:33,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:17:33,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:17:33,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:17:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:17:33,469 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 16:17:33,875 WARN L179 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-10-24 16:17:34,399 WARN L179 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2018-10-24 16:17:34,811 WARN L179 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-10-24 16:17:35,000 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 4 [2018-10-24 16:17:35,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:17:35,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:17:35,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 16:17:35,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:17:35,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:17:35,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:17:35,135 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 7 states. [2018-10-24 16:17:56,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:17:56,515 INFO L93 Difference]: Finished difference Result 5413 states and 10642 transitions. [2018-10-24 16:17:56,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:17:56,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-10-24 16:17:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:17:56,571 INFO L225 Difference]: With dead ends: 5413 [2018-10-24 16:17:56,571 INFO L226 Difference]: Without dead ends: 4578 [2018-10-24 16:17:56,580 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:17:56,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2018-10-24 16:17:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 3072. [2018-10-24 16:17:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3072 states. [2018-10-24 16:17:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4384 transitions. [2018-10-24 16:17:56,760 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4384 transitions. Word has length 38 [2018-10-24 16:17:56,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:17:56,761 INFO L481 AbstractCegarLoop]: Abstraction has 3072 states and 4384 transitions. [2018-10-24 16:17:56,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:17:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4384 transitions. [2018-10-24 16:17:56,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-24 16:17:56,776 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:17:56,776 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:17:56,777 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:17:56,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:17:56,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1929180755, now seen corresponding path program 1 times [2018-10-24 16:17:56,778 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:17:56,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:17:56,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:17:56,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:17:56,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:17:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:17:57,395 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 134 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-24 16:17:57,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:17:57,395 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 16:17:57,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:17:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:17:57,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:17:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-24 16:17:57,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:17:57,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-10-24 16:17:57,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:17:57,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:17:57,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:17:57,678 INFO L87 Difference]: Start difference. First operand 3072 states and 4384 transitions. Second operand 6 states. [2018-10-24 16:18:22,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:18:22,023 INFO L93 Difference]: Finished difference Result 15950 states and 24157 transitions. [2018-10-24 16:18:22,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 16:18:22,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2018-10-24 16:18:22,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:18:22,078 INFO L225 Difference]: With dead ends: 15950 [2018-10-24 16:18:22,078 INFO L226 Difference]: Without dead ends: 10621 [2018-10-24 16:18:22,087 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 181 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:18:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2018-10-24 16:18:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 4575. [2018-10-24 16:18:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4575 states. [2018-10-24 16:18:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 5823 transitions. [2018-10-24 16:18:22,219 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 5823 transitions. Word has length 180 [2018-10-24 16:18:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:18:22,220 INFO L481 AbstractCegarLoop]: Abstraction has 4575 states and 5823 transitions. [2018-10-24 16:18:22,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:18:22,220 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 5823 transitions. [2018-10-24 16:18:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-10-24 16:18:22,233 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:18:22,234 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:18:22,234 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:18:22,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:18:22,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1624472738, now seen corresponding path program 1 times [2018-10-24 16:18:22,235 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:18:22,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:18:22,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:22,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:18:22,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:18:22,678 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 16:18:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 122 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-24 16:18:22,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:18:22,905 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 16:18:22,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:18:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:18:22,999 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:18:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 16:18:23,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:18:23,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-24 16:18:23,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:18:23,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:18:23,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:18:23,117 INFO L87 Difference]: Start difference. First operand 4575 states and 5823 transitions. Second operand 7 states. [2018-10-24 16:18:35,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:18:35,308 INFO L93 Difference]: Finished difference Result 17421 states and 22220 transitions. [2018-10-24 16:18:35,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:18:35,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2018-10-24 16:18:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:18:35,354 INFO L225 Difference]: With dead ends: 17421 [2018-10-24 16:18:35,354 INFO L226 Difference]: Without dead ends: 10584 [2018-10-24 16:18:35,366 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:18:35,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2018-10-24 16:18:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 9079. [2018-10-24 16:18:35,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9079 states. [2018-10-24 16:18:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9079 states to 9079 states and 10588 transitions. [2018-10-24 16:18:35,563 INFO L78 Accepts]: Start accepts. Automaton has 9079 states and 10588 transitions. Word has length 250 [2018-10-24 16:18:35,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:18:35,565 INFO L481 AbstractCegarLoop]: Abstraction has 9079 states and 10588 transitions. [2018-10-24 16:18:35,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:18:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 9079 states and 10588 transitions. [2018-10-24 16:18:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-10-24 16:18:35,570 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:18:35,571 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:18:35,571 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:18:35,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:18:35,572 INFO L82 PathProgramCache]: Analyzing trace with hash 768917486, now seen corresponding path program 1 times [2018-10-24 16:18:35,572 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:18:35,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:18:35,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:35,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:18:35,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:18:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 71 proven. 67 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 16:18:36,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:18:36,131 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 16:18:36,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:18:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:18:36,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:18:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 16:18:36,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:18:36,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 16:18:36,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:18:36,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:18:36,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:18:36,305 INFO L87 Difference]: Start difference. First operand 9079 states and 10588 transitions. Second operand 5 states. [2018-10-24 16:18:44,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:18:44,482 INFO L93 Difference]: Finished difference Result 27180 states and 32792 transitions. [2018-10-24 16:18:44,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:18:44,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 255 [2018-10-24 16:18:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:18:44,531 INFO L225 Difference]: With dead ends: 27180 [2018-10-24 16:18:44,531 INFO L226 Difference]: Without dead ends: 18103 [2018-10-24 16:18:44,545 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:18:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18103 states. [2018-10-24 16:18:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18103 to 18103. [2018-10-24 16:18:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18103 states. [2018-10-24 16:18:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18103 states to 18103 states and 20930 transitions. [2018-10-24 16:18:44,852 INFO L78 Accepts]: Start accepts. Automaton has 18103 states and 20930 transitions. Word has length 255 [2018-10-24 16:18:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:18:44,852 INFO L481 AbstractCegarLoop]: Abstraction has 18103 states and 20930 transitions. [2018-10-24 16:18:44,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:18:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 18103 states and 20930 transitions. [2018-10-24 16:18:44,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-10-24 16:18:44,859 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:18:44,859 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:18:44,860 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:18:44,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:18:44,860 INFO L82 PathProgramCache]: Analyzing trace with hash -384877355, now seen corresponding path program 1 times [2018-10-24 16:18:44,860 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:18:44,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:18:44,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:44,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:18:44,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:18:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:18:45,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:18:45,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:18:45,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:18:45,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:18:45,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:18:45,538 INFO L87 Difference]: Start difference. First operand 18103 states and 20930 transitions. Second operand 4 states. [2018-10-24 16:18:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:18:54,704 INFO L93 Difference]: Finished difference Result 61772 states and 72730 transitions. [2018-10-24 16:18:54,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:18:54,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2018-10-24 16:18:54,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:18:54,795 INFO L225 Difference]: With dead ends: 61772 [2018-10-24 16:18:54,795 INFO L226 Difference]: Without dead ends: 43671 [2018-10-24 16:18:54,823 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:18:54,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43671 states. [2018-10-24 16:18:55,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43671 to 43671. [2018-10-24 16:18:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43671 states. [2018-10-24 16:18:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43671 states to 43671 states and 50510 transitions. [2018-10-24 16:18:55,382 INFO L78 Accepts]: Start accepts. Automaton has 43671 states and 50510 transitions. Word has length 292 [2018-10-24 16:18:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:18:55,382 INFO L481 AbstractCegarLoop]: Abstraction has 43671 states and 50510 transitions. [2018-10-24 16:18:55,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:18:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 43671 states and 50510 transitions. [2018-10-24 16:18:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-10-24 16:18:55,394 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:18:55,394 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:18:55,395 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:18:55,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:18:55,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1819016660, now seen corresponding path program 1 times [2018-10-24 16:18:55,395 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:18:55,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:18:55,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:55,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:18:55,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:18:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:18:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 5 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-10-24 16:18:55,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:18:55,940 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 16:18:55,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:18:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:18:56,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:18:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-10-24 16:18:56,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:18:56,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 16:18:56,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:18:56,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:18:56,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:18:56,556 INFO L87 Difference]: Start difference. First operand 43671 states and 50510 transitions. Second operand 5 states. [2018-10-24 16:19:11,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:19:11,542 INFO L93 Difference]: Finished difference Result 87340 states and 101018 transitions. [2018-10-24 16:19:11,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:19:11,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 345 [2018-10-24 16:19:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:19:11,592 INFO L225 Difference]: With dead ends: 87340 [2018-10-24 16:19:11,593 INFO L226 Difference]: Without dead ends: 43671 [2018-10-24 16:19:11,619 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 347 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:19:11,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43671 states. [2018-10-24 16:19:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43671 to 43671. [2018-10-24 16:19:12,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43671 states. [2018-10-24 16:19:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43671 states to 43671 states and 47549 transitions. [2018-10-24 16:19:12,093 INFO L78 Accepts]: Start accepts. Automaton has 43671 states and 47549 transitions. Word has length 345 [2018-10-24 16:19:12,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:19:12,094 INFO L481 AbstractCegarLoop]: Abstraction has 43671 states and 47549 transitions. [2018-10-24 16:19:12,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:19:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand 43671 states and 47549 transitions. [2018-10-24 16:19:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2018-10-24 16:19:12,126 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:19:12,126 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:19:12,126 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:19:12,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:19:12,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1631486016, now seen corresponding path program 1 times [2018-10-24 16:19:12,127 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:19:12,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:19:12,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:12,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:19:12,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:19:12,635 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 16:19:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 402 proven. 8 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2018-10-24 16:19:12,879 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:19:12,879 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 16:19:12,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:19:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:19:13,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:19:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-10-24 16:19:13,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:19:13,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 16:19:13,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:19:13,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:19:13,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:19:13,331 INFO L87 Difference]: Start difference. First operand 43671 states and 47549 transitions. Second operand 5 states. [2018-10-24 16:19:28,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:19:28,600 INFO L93 Difference]: Finished difference Result 177630 states and 194912 transitions. [2018-10-24 16:19:28,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:19:28,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 480 [2018-10-24 16:19:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:19:28,719 INFO L225 Difference]: With dead ends: 177630 [2018-10-24 16:19:28,719 INFO L226 Difference]: Without dead ends: 116611 [2018-10-24 16:19:28,757 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 481 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:19:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116611 states. [2018-10-24 16:19:29,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116611 to 75980. [2018-10-24 16:19:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75980 states. [2018-10-24 16:19:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75980 states to 75980 states and 82060 transitions. [2018-10-24 16:19:29,686 INFO L78 Accepts]: Start accepts. Automaton has 75980 states and 82060 transitions. Word has length 480 [2018-10-24 16:19:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:19:29,686 INFO L481 AbstractCegarLoop]: Abstraction has 75980 states and 82060 transitions. [2018-10-24 16:19:29,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:19:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 75980 states and 82060 transitions. [2018-10-24 16:19:29,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2018-10-24 16:19:29,721 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:19:29,722 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:19:29,722 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:19:29,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:19:29,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1434435195, now seen corresponding path program 1 times [2018-10-24 16:19:29,723 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:19:29,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:19:29,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:29,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:19:29,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:19:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-10-24 16:19:30,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:19:30,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:19:30,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:19:30,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:19:30,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:19:30,450 INFO L87 Difference]: Start difference. First operand 75980 states and 82060 transitions. Second operand 4 states. [2018-10-24 16:19:37,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:19:37,291 INFO L93 Difference]: Finished difference Result 152709 states and 164875 transitions. [2018-10-24 16:19:37,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:19:37,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 562 [2018-10-24 16:19:37,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:19:37,363 INFO L225 Difference]: With dead ends: 152709 [2018-10-24 16:19:37,363 INFO L226 Difference]: Without dead ends: 70705 [2018-10-24 16:19:37,402 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:19:37,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70705 states. [2018-10-24 16:19:37,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70705 to 63185. [2018-10-24 16:19:37,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63185 states. [2018-10-24 16:19:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63185 states to 63185 states and 66719 transitions. [2018-10-24 16:19:38,007 INFO L78 Accepts]: Start accepts. Automaton has 63185 states and 66719 transitions. Word has length 562 [2018-10-24 16:19:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:19:38,008 INFO L481 AbstractCegarLoop]: Abstraction has 63185 states and 66719 transitions. [2018-10-24 16:19:38,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:19:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 63185 states and 66719 transitions. [2018-10-24 16:19:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2018-10-24 16:19:38,045 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:19:38,045 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:19:38,045 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:19:38,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:19:38,046 INFO L82 PathProgramCache]: Analyzing trace with hash 524229747, now seen corresponding path program 1 times [2018-10-24 16:19:38,046 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:19:38,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:19:38,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:38,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:19:38,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:19:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1153 backedges. 919 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-10-24 16:19:38,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:19:38,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:19:38,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:19:38,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:19:38,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:19:38,604 INFO L87 Difference]: Start difference. First operand 63185 states and 66719 transitions. Second operand 4 states. [2018-10-24 16:19:44,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:19:44,858 INFO L93 Difference]: Finished difference Result 133888 states and 141433 transitions. [2018-10-24 16:19:44,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:19:44,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 640 [2018-10-24 16:19:44,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:19:44,926 INFO L225 Difference]: With dead ends: 133888 [2018-10-24 16:19:44,926 INFO L226 Difference]: Without dead ends: 71457 [2018-10-24 16:19:44,957 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:19:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71457 states. [2018-10-24 16:19:45,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71457 to 63937. [2018-10-24 16:19:45,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63937 states. [2018-10-24 16:19:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63937 states to 63937 states and 66360 transitions. [2018-10-24 16:19:45,514 INFO L78 Accepts]: Start accepts. Automaton has 63937 states and 66360 transitions. Word has length 640 [2018-10-24 16:19:45,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:19:45,515 INFO L481 AbstractCegarLoop]: Abstraction has 63937 states and 66360 transitions. [2018-10-24 16:19:45,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:19:45,515 INFO L276 IsEmpty]: Start isEmpty. Operand 63937 states and 66360 transitions. [2018-10-24 16:19:45,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2018-10-24 16:19:45,535 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:19:45,535 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:19:45,536 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:19:45,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:19:45,536 INFO L82 PathProgramCache]: Analyzing trace with hash 709934627, now seen corresponding path program 1 times [2018-10-24 16:19:45,536 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:19:45,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:19:45,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:45,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:19:45,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:19:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 603 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-10-24 16:19:46,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:19:46,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:19:46,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:19:46,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:19:46,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:19:46,083 INFO L87 Difference]: Start difference. First operand 63937 states and 66360 transitions. Second operand 3 states. [2018-10-24 16:19:49,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:19:49,976 INFO L93 Difference]: Finished difference Result 129376 states and 134357 transitions. [2018-10-24 16:19:49,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:19:49,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 672 [2018-10-24 16:19:49,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:19:50,057 INFO L225 Difference]: With dead ends: 129376 [2018-10-24 16:19:50,058 INFO L226 Difference]: Without dead ends: 66193 [2018-10-24 16:19:50,099 INFO L605 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 [2018-10-24 16:19:50,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66193 states. [2018-10-24 16:19:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66193 to 64689. [2018-10-24 16:19:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64689 states. [2018-10-24 16:19:51,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64689 states to 64689 states and 66665 transitions. [2018-10-24 16:19:51,599 INFO L78 Accepts]: Start accepts. Automaton has 64689 states and 66665 transitions. Word has length 672 [2018-10-24 16:19:51,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:19:51,601 INFO L481 AbstractCegarLoop]: Abstraction has 64689 states and 66665 transitions. [2018-10-24 16:19:51,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:19:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 64689 states and 66665 transitions. [2018-10-24 16:19:51,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2018-10-24 16:19:51,652 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:19:51,653 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:19:51,653 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:19:51,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:19:51,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1532058663, now seen corresponding path program 1 times [2018-10-24 16:19:51,655 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:19:51,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:19:51,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:51,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:19:51,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:19:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:19:52,640 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 16:19:52,834 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 16:19:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 545 proven. 70 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 16:19:53,765 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:19:53,765 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:19:53,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:19:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:19:53,999 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:20:09,813 WARN L179 SmtUtils]: Spent 14.10 s on a formula simplification. DAG size of input: 433 DAG size of output: 19 [2018-10-24 16:20:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2018-10-24 16:20:10,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:20:10,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-10-24 16:20:10,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:20:10,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:20:10,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:20:10,578 INFO L87 Difference]: Start difference. First operand 64689 states and 66665 transitions. Second operand 6 states. Received shutdown request... [2018-10-24 16:21:26,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 16:21:26,208 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:21:26,213 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:21:26,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:21:26 BoogieIcfgContainer [2018-10-24 16:21:26,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:21:26,214 INFO L168 Benchmark]: Toolchain (without parser) took 246659.37 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -515.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 16:21:26,216 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 16:21:26,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2444.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 16:21:26,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 657.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -977.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2018-10-24 16:21:26,218 INFO L168 Benchmark]: Boogie Preprocessor took 436.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 55.0 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. [2018-10-24 16:21:26,218 INFO L168 Benchmark]: RCFGBuilder took 9721.46 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 230.7 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -191.0 MB). Peak memory consumption was 624.6 MB. Max. memory is 7.1 GB. [2018-10-24 16:21:26,219 INFO L168 Benchmark]: TraceAbstraction took 233391.50 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 397.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 16:21:26,224 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2444.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 657.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -977.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 436.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 55.0 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9721.46 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 230.7 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -191.0 MB). Peak memory consumption was 624.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233391.50 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 397.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 123]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 123). Cancelled while BasicCegarLoop was constructing difference of abstraction (64689states) and FLOYD_HOARE automaton (currently 8 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (90453 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 233.2s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 199.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5102 SDtfs, 33344 SDslu, 1261 SDs, 0 SdLazy, 80197 SolverSat, 16729 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 173.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2538 GetRequests, 2480 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 19.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75980occurred in iteration=7, 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: 5.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 66232 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 24.4s InterpolantComputationTime, 7132 NumberOfCodeBlocks, 7132 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7115 ConstructedInterpolants, 38 QuantifiedInterpolants, 12386971 SizeOfPredicates, 9 NumberOfNonLiveVariables, 3154 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 7621/7780 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown