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/Problem13_label48_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:12:23,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:12:23,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:12:23,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:12:23,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:12:23,818 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:12:23,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:12:23,822 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:12:23,826 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:12:23,827 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:12:23,829 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:12:23,829 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:12:23,830 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:12:23,834 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:12:23,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:12:23,845 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:12:23,846 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:12:23,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:12:23,850 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:12:23,851 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:12:23,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:12:23,853 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:12:23,856 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:12:23,868 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 14:12:23,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:12:23,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:12:23,901 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:12:23,901 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:12:23,902 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:12:23,902 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:12:23,902 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:12:23,902 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:12:23,902 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:12:23,903 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:12:23,903 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:12:23,903 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:12:23,903 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:12:23,903 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:12:23,904 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:12:23,904 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:12:23,904 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:12:23,904 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:12:23,904 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:12:23,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:12:23,905 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:12:23,905 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:12:23,905 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:12:23,905 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:12:23,906 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:12:23,906 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:12:23,906 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:12:23,906 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:12:23,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:12:23,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:12:23,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:12:23,995 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:12:23,995 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:12:23,996 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label48_false-unreach-call.c [2018-10-24 14:12:24,064 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/abbe122ed/fa029bff276247aca92b0d1fa5a34a79/FLAG7152113b8 [2018-10-24 14:12:24,881 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:12:24,882 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label48_false-unreach-call.c [2018-10-24 14:12:24,916 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/abbe122ed/fa029bff276247aca92b0d1fa5a34a79/FLAG7152113b8 [2018-10-24 14:12:24,934 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/abbe122ed/fa029bff276247aca92b0d1fa5a34a79 [2018-10-24 14:12:24,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:12:24,948 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:12:24,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:12:24,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:12:24,954 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:12:24,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:12:24" (1/1) ... [2018-10-24 14:12:24,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31151419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:24, skipping insertion in model container [2018-10-24 14:12:24,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:12:24" (1/1) ... [2018-10-24 14:12:24,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:12:25,167 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:12:26,606 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:12:26,611 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:12:27,348 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:12:27,383 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:12:27,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27 WrapperNode [2018-10-24 14:12:27,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:12:27,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:12:27,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:12:27,385 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:12:27,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:27,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:12:28,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:12:28,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:12:28,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:12:28,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:12:28,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:12:28,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:12:28,745 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:12:28,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (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 14:12:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:12:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:12:28,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:12:43,392 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:12:43,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:12:43 BoogieIcfgContainer [2018-10-24 14:12:43,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:12:43,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:12:43,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:12:43,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:12:43,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:12:24" (1/3) ... [2018-10-24 14:12:43,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2fb46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:12:43, skipping insertion in model container [2018-10-24 14:12:43,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (2/3) ... [2018-10-24 14:12:43,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2fb46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:12:43, skipping insertion in model container [2018-10-24 14:12:43,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:12:43" (3/3) ... [2018-10-24 14:12:43,409 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label48_false-unreach-call.c [2018-10-24 14:12:43,419 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:12:43,433 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:12:43,452 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:12:43,512 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:12:43,513 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:12:43,513 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:12:43,513 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:12:43,513 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:12:43,514 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:12:43,514 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:12:43,514 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:12:43,514 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:12:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 14:12:43,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-24 14:12:43,562 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:12:43,563 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:12:43,565 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:12:43,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:12:43,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1805984234, now seen corresponding path program 1 times [2018-10-24 14:12:43,574 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:12:43,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:12:43,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:43,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:43,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:43,801 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 14:12:43,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:12:43,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:12:43,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:12:43,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:12:43,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:12:43,828 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 3 states. [2018-10-24 14:12:54,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:12:54,135 INFO L93 Difference]: Finished difference Result 3150 states and 5809 transitions. [2018-10-24 14:12:54,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:12:54,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-24 14:12:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:12:54,177 INFO L225 Difference]: With dead ends: 3150 [2018-10-24 14:12:54,177 INFO L226 Difference]: Without dead ends: 2047 [2018-10-24 14:12:54,185 INFO L605 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 [2018-10-24 14:12:54,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2018-10-24 14:12:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2034. [2018-10-24 14:12:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2034 states. [2018-10-24 14:12:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 3389 transitions. [2018-10-24 14:12:54,354 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 3389 transitions. Word has length 7 [2018-10-24 14:12:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:12:54,355 INFO L481 AbstractCegarLoop]: Abstraction has 2034 states and 3389 transitions. [2018-10-24 14:12:54,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:12:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 3389 transitions. [2018-10-24 14:12:54,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-10-24 14:12:54,359 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:12:54,360 INFO L375 BasicCegarLoop]: trace histogram [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 14:12:54,360 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:12:54,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:12:54,362 INFO L82 PathProgramCache]: Analyzing trace with hash -2142238128, now seen corresponding path program 1 times [2018-10-24 14:12:54,362 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:12:54,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:12:54,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:54,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:54,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:12:54,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:12:54,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:12:54,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:12:54,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:12:54,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:54,708 INFO L87 Difference]: Start difference. First operand 2034 states and 3389 transitions. Second operand 4 states. [2018-10-24 14:13:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:08,606 INFO L93 Difference]: Finished difference Result 7335 states and 12450 transitions. [2018-10-24 14:13:08,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:13:08,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2018-10-24 14:13:08,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:08,636 INFO L225 Difference]: With dead ends: 7335 [2018-10-24 14:13:08,636 INFO L226 Difference]: Without dead ends: 5303 [2018-10-24 14:13:08,641 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5303 states. [2018-10-24 14:13:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5303 to 3660. [2018-10-24 14:13:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3660 states. [2018-10-24 14:13:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5616 transitions. [2018-10-24 14:13:08,727 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5616 transitions. Word has length 79 [2018-10-24 14:13:08,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:08,728 INFO L481 AbstractCegarLoop]: Abstraction has 3660 states and 5616 transitions. [2018-10-24 14:13:08,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:13:08,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5616 transitions. [2018-10-24 14:13:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-24 14:13:08,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:08,732 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:13:08,733 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:08,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:08,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1129398637, now seen corresponding path program 1 times [2018-10-24 14:13:08,733 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:08,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:08,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:08,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:08,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:08,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:08,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:13:08,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:13:08,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:13:08,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:08,971 INFO L87 Difference]: Start difference. First operand 3660 states and 5616 transitions. Second operand 4 states. [2018-10-24 14:13:29,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:29,035 INFO L93 Difference]: Finished difference Result 13875 states and 21556 transitions. [2018-10-24 14:13:29,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:13:29,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2018-10-24 14:13:29,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:29,085 INFO L225 Difference]: With dead ends: 13875 [2018-10-24 14:13:29,085 INFO L226 Difference]: Without dead ends: 10217 [2018-10-24 14:13:29,092 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10217 states. [2018-10-24 14:13:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10217 to 6857. [2018-10-24 14:13:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6857 states. [2018-10-24 14:13:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6857 states to 6857 states and 10077 transitions. [2018-10-24 14:13:29,259 INFO L78 Accepts]: Start accepts. Automaton has 6857 states and 10077 transitions. Word has length 93 [2018-10-24 14:13:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:29,260 INFO L481 AbstractCegarLoop]: Abstraction has 6857 states and 10077 transitions. [2018-10-24 14:13:29,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:13:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6857 states and 10077 transitions. [2018-10-24 14:13:29,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 14:13:29,267 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:29,268 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:13:29,268 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:29,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:29,268 INFO L82 PathProgramCache]: Analyzing trace with hash -498687584, now seen corresponding path program 1 times [2018-10-24 14:13:29,268 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:29,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:29,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:29,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:29,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:29,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:29,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:13:29,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:13:29,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:13:29,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:29,592 INFO L87 Difference]: Start difference. First operand 6857 states and 10077 transitions. Second operand 4 states. [2018-10-24 14:13:41,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:41,261 INFO L93 Difference]: Finished difference Result 24212 states and 35533 transitions. [2018-10-24 14:13:41,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:13:41,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2018-10-24 14:13:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:41,319 INFO L225 Difference]: With dead ends: 24212 [2018-10-24 14:13:41,320 INFO L226 Difference]: Without dead ends: 17357 [2018-10-24 14:13:41,331 INFO L605 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 [2018-10-24 14:13:41,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17357 states. [2018-10-24 14:13:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17357 to 13186. [2018-10-24 14:13:41,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13186 states. [2018-10-24 14:13:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13186 states to 13186 states and 19180 transitions. [2018-10-24 14:13:41,599 INFO L78 Accepts]: Start accepts. Automaton has 13186 states and 19180 transitions. Word has length 111 [2018-10-24 14:13:41,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:41,599 INFO L481 AbstractCegarLoop]: Abstraction has 13186 states and 19180 transitions. [2018-10-24 14:13:41,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:13:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 13186 states and 19180 transitions. [2018-10-24 14:13:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-10-24 14:13:41,602 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:41,603 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:13:41,603 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:41,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:41,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1799340876, now seen corresponding path program 1 times [2018-10-24 14:13:41,604 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:41,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:41,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:41,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:41,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:41,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:41,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:13:41,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:13:41,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:13:41,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:41,820 INFO L87 Difference]: Start difference. First operand 13186 states and 19180 transitions. Second operand 4 states. [2018-10-24 14:13:52,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:52,678 INFO L93 Difference]: Finished difference Result 39235 states and 55192 transitions. [2018-10-24 14:13:52,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:13:52,680 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2018-10-24 14:13:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:52,734 INFO L225 Difference]: With dead ends: 39235 [2018-10-24 14:13:52,735 INFO L226 Difference]: Without dead ends: 26051 [2018-10-24 14:13:52,752 INFO L605 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 [2018-10-24 14:13:52,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26051 states. [2018-10-24 14:13:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26051 to 26023. [2018-10-24 14:13:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26023 states. [2018-10-24 14:13:53,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26023 states to 26023 states and 35099 transitions. [2018-10-24 14:13:53,124 INFO L78 Accepts]: Start accepts. Automaton has 26023 states and 35099 transitions. Word has length 119 [2018-10-24 14:13:53,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:53,125 INFO L481 AbstractCegarLoop]: Abstraction has 26023 states and 35099 transitions. [2018-10-24 14:13:53,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:13:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand 26023 states and 35099 transitions. [2018-10-24 14:13:53,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-24 14:13:53,127 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:53,127 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:13:53,127 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:53,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:53,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1584730266, now seen corresponding path program 1 times [2018-10-24 14:13:53,128 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:53,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:53,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:53,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:53,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:53,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:53,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:53,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:13:53,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:13:53,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:13:53,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:53,415 INFO L87 Difference]: Start difference. First operand 26023 states and 35099 transitions. Second operand 4 states. [2018-10-24 14:14:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:04,207 INFO L93 Difference]: Finished difference Result 82885 states and 113451 transitions. [2018-10-24 14:14:04,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:04,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2018-10-24 14:14:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:04,388 INFO L225 Difference]: With dead ends: 82885 [2018-10-24 14:14:04,388 INFO L226 Difference]: Without dead ends: 56864 [2018-10-24 14:14:04,426 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 14:14:04,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56864 states. [2018-10-24 14:14:05,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56864 to 41001. [2018-10-24 14:14:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41001 states. [2018-10-24 14:14:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41001 states to 41001 states and 53553 transitions. [2018-10-24 14:14:05,129 INFO L78 Accepts]: Start accepts. Automaton has 41001 states and 53553 transitions. Word has length 122 [2018-10-24 14:14:05,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:05,130 INFO L481 AbstractCegarLoop]: Abstraction has 41001 states and 53553 transitions. [2018-10-24 14:14:05,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 41001 states and 53553 transitions. [2018-10-24 14:14:05,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 14:14:05,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:05,132 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:14:05,133 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:05,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:05,136 INFO L82 PathProgramCache]: Analyzing trace with hash -3204673, now seen corresponding path program 1 times [2018-10-24 14:14:05,136 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:05,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:05,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:05,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:05,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:14:05,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:05,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:14:05,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:05,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:05,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:05,324 INFO L87 Difference]: Start difference. First operand 41001 states and 53553 transitions. Second operand 4 states. [2018-10-24 14:14:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:14,604 INFO L93 Difference]: Finished difference Result 137151 states and 180114 transitions. [2018-10-24 14:14:14,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:14,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-10-24 14:14:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:14,749 INFO L225 Difference]: With dead ends: 137151 [2018-10-24 14:14:14,749 INFO L226 Difference]: Without dead ends: 96152 [2018-10-24 14:14:14,791 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96152 states. [2018-10-24 14:14:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96152 to 92988. [2018-10-24 14:14:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92988 states. [2018-10-24 14:14:15,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92988 states to 92988 states and 112583 transitions. [2018-10-24 14:14:15,945 INFO L78 Accepts]: Start accepts. Automaton has 92988 states and 112583 transitions. Word has length 130 [2018-10-24 14:14:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:15,945 INFO L481 AbstractCegarLoop]: Abstraction has 92988 states and 112583 transitions. [2018-10-24 14:14:15,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:15,946 INFO L276 IsEmpty]: Start isEmpty. Operand 92988 states and 112583 transitions. [2018-10-24 14:14:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-24 14:14:15,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:15,947 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:14:15,948 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:15,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:15,948 INFO L82 PathProgramCache]: Analyzing trace with hash -73147650, now seen corresponding path program 1 times [2018-10-24 14:14:15,948 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:15,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:15,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:15,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:15,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:16,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:14:16,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:16,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:14:16,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:16,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:16,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:16,177 INFO L87 Difference]: Start difference. First operand 92988 states and 112583 transitions. Second operand 4 states. [2018-10-24 14:14:33,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:33,287 INFO L93 Difference]: Finished difference Result 228915 states and 275127 transitions. [2018-10-24 14:14:33,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:33,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2018-10-24 14:14:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:33,463 INFO L225 Difference]: With dead ends: 228915 [2018-10-24 14:14:33,463 INFO L226 Difference]: Without dead ends: 135929 [2018-10-24 14:14:33,532 INFO L605 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 [2018-10-24 14:14:33,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135929 states. [2018-10-24 14:14:35,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135929 to 132498. [2018-10-24 14:14:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132498 states. [2018-10-24 14:14:35,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132498 states to 132498 states and 158119 transitions. [2018-10-24 14:14:35,806 INFO L78 Accepts]: Start accepts. Automaton has 132498 states and 158119 transitions. Word has length 133 [2018-10-24 14:14:35,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:35,806 INFO L481 AbstractCegarLoop]: Abstraction has 132498 states and 158119 transitions. [2018-10-24 14:14:35,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 132498 states and 158119 transitions. [2018-10-24 14:14:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-24 14:14:35,809 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:35,809 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:14:35,809 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:35,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:35,810 INFO L82 PathProgramCache]: Analyzing trace with hash 132926939, now seen corresponding path program 1 times [2018-10-24 14:14:35,810 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:35,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:35,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:35,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:35,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 14:14:36,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:36,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:14:36,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:36,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:36,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:36,063 INFO L87 Difference]: Start difference. First operand 132498 states and 158119 transitions. Second operand 4 states. [2018-10-24 14:14:48,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:48,796 INFO L93 Difference]: Finished difference Result 406123 states and 483268 transitions. [2018-10-24 14:14:48,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:48,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2018-10-24 14:14:48,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:49,151 INFO L225 Difference]: With dead ends: 406123 [2018-10-24 14:14:49,151 INFO L226 Difference]: Without dead ends: 273627 [2018-10-24 14:14:49,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 2 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 14:14:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273627 states. [2018-10-24 14:14:52,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273627 to 273540. [2018-10-24 14:14:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273540 states. [2018-10-24 14:14:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273540 states to 273540 states and 310953 transitions. [2018-10-24 14:14:53,299 INFO L78 Accepts]: Start accepts. Automaton has 273540 states and 310953 transitions. Word has length 153 [2018-10-24 14:14:53,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:53,300 INFO L481 AbstractCegarLoop]: Abstraction has 273540 states and 310953 transitions. [2018-10-24 14:14:53,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 273540 states and 310953 transitions. [2018-10-24 14:14:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-10-24 14:14:53,304 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:53,305 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:53,305 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:53,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:53,305 INFO L82 PathProgramCache]: Analyzing trace with hash 177060465, now seen corresponding path program 1 times [2018-10-24 14:14:53,306 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:53,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:53,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:53,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:53,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:14:53,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:53,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:14:53,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:14:53,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:14:53,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:14:53,523 INFO L87 Difference]: Start difference. First operand 273540 states and 310953 transitions. Second operand 3 states. [2018-10-24 14:15:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:15:02,854 INFO L93 Difference]: Finished difference Result 516083 states and 584249 transitions. [2018-10-24 14:15:02,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:15:02,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2018-10-24 14:15:02,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:15:03,178 INFO L225 Difference]: With dead ends: 516083 [2018-10-24 14:15:03,178 INFO L226 Difference]: Without dead ends: 243333 [2018-10-24 14:15:03,344 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 14:15:03,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243333 states. [2018-10-24 14:15:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243333 to 221218. [2018-10-24 14:15:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221218 states. [2018-10-24 14:15:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221218 states to 221218 states and 242371 transitions. [2018-10-24 14:15:16,460 INFO L78 Accepts]: Start accepts. Automaton has 221218 states and 242371 transitions. Word has length 223 [2018-10-24 14:15:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:15:16,460 INFO L481 AbstractCegarLoop]: Abstraction has 221218 states and 242371 transitions. [2018-10-24 14:15:16,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:15:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 221218 states and 242371 transitions. [2018-10-24 14:15:16,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-10-24 14:15:16,470 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:15:16,470 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:15:16,471 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:15:16,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:15:16,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1830265456, now seen corresponding path program 1 times [2018-10-24 14:15:16,472 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:15:16,472 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:15:16,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:16,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:15:16,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:15:17,021 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-24 14:15:17,488 WARN L179 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2018-10-24 14:15:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 14:15:17,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:15:17,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:15:17,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:15:17,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:15:17,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:15:17,572 INFO L87 Difference]: Start difference. First operand 221218 states and 242371 transitions. Second operand 5 states. [2018-10-24 14:15:36,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:15:36,394 INFO L93 Difference]: Finished difference Result 456646 states and 499610 transitions. [2018-10-24 14:15:36,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:15:36,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2018-10-24 14:15:36,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:15:36,652 INFO L225 Difference]: With dead ends: 456646 [2018-10-24 14:15:36,653 INFO L226 Difference]: Without dead ends: 229111 [2018-10-24 14:15:36,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:15:36,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229111 states. [2018-10-24 14:15:40,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229111 to 220404. [2018-10-24 14:15:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220404 states. [2018-10-24 14:15:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220404 states to 220404 states and 241255 transitions. [2018-10-24 14:15:40,270 INFO L78 Accepts]: Start accepts. Automaton has 220404 states and 241255 transitions. Word has length 270 [2018-10-24 14:15:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:15:40,270 INFO L481 AbstractCegarLoop]: Abstraction has 220404 states and 241255 transitions. [2018-10-24 14:15:40,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:15:40,270 INFO L276 IsEmpty]: Start isEmpty. Operand 220404 states and 241255 transitions. [2018-10-24 14:15:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-10-24 14:15:40,276 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:15:40,276 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:15:40,276 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:15:40,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:15:40,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1868165603, now seen corresponding path program 1 times [2018-10-24 14:15:40,277 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:15:40,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:15:40,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:40,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:15:40,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:15:40,700 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 14:15:40,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:15:40,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:15:40,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:15:40,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:15:40,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:15:40,702 INFO L87 Difference]: Start difference. First operand 220404 states and 241255 transitions. Second operand 5 states. [2018-10-24 14:16:04,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:16:04,504 INFO L93 Difference]: Finished difference Result 555446 states and 609315 transitions. [2018-10-24 14:16:04,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:16:04,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2018-10-24 14:16:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:16:04,887 INFO L225 Difference]: With dead ends: 555446 [2018-10-24 14:16:04,887 INFO L226 Difference]: Without dead ends: 335832 [2018-10-24 14:16:05,009 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:16:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335832 states. [2018-10-24 14:16:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335832 to 317433. [2018-10-24 14:16:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317433 states. [2018-10-24 14:16:09,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317433 states to 317433 states and 346343 transitions. [2018-10-24 14:16:09,319 INFO L78 Accepts]: Start accepts. Automaton has 317433 states and 346343 transitions. Word has length 307 [2018-10-24 14:16:09,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:16:09,319 INFO L481 AbstractCegarLoop]: Abstraction has 317433 states and 346343 transitions. [2018-10-24 14:16:09,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:16:09,319 INFO L276 IsEmpty]: Start isEmpty. Operand 317433 states and 346343 transitions. [2018-10-24 14:16:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2018-10-24 14:16:09,328 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:16:09,328 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 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] [2018-10-24 14:16:09,328 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:16:09,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:16:09,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1534296657, now seen corresponding path program 1 times [2018-10-24 14:16:09,329 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:16:09,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:16:09,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:16:09,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:16:09,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:16:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:16:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 352 proven. 9 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-10-24 14:16:09,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:16:09,883 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 14:16:09,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:16:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:16:10,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:16:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-10-24 14:16:11,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:16:11,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:16:11,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:16:11,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:16:11,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:16:11,507 INFO L87 Difference]: Start difference. First operand 317433 states and 346343 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 14:16:13,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:16:13,794 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:16:13,801 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:16:13,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:16:13 BoogieIcfgContainer [2018-10-24 14:16:13,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:16:13,802 INFO L168 Benchmark]: Toolchain (without parser) took 228855.55 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -686.9 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-24 14:16:13,803 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:16:13,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2435.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:13,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 833.68 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 827.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:13,808 INFO L168 Benchmark]: Boogie Preprocessor took 525.25 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:13,809 INFO L168 Benchmark]: RCFGBuilder took 14648.71 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 256.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -11.5 MB). Peak memory consumption was 615.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:13,810 INFO L168 Benchmark]: TraceAbstraction took 210407.28 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.4 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 14:16:13,818 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2435.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 833.68 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 827.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 525.25 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14648.71 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 256.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -11.5 MB). Peak memory consumption was 615.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210407.28 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.4 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (317433states) and FLOYD_HOARE automaton (currently 3 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (131 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.2s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 173.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11003 SDtfs, 24535 SDslu, 3866 SDs, 0 SdLazy, 64931 SolverSat, 12294 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 142.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 380 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=317433occurred in iteration=12, 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: 30.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 80981 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 2481 NumberOfCodeBlocks, 2481 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2467 ConstructedInterpolants, 0 QuantifiedInterpolants, 1496333 SizeOfPredicates, 0 NumberOfNonLiveVariables, 521 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 1784/1793 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown