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/Problem19_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:06:06,851 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:06:06,853 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:06:06,865 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:06:06,865 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:06:06,866 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:06:06,867 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:06:06,869 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:06:06,871 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:06:06,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:06:06,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:06:06,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:06:06,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:06:06,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:06:06,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:06:06,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:06:06,877 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:06:06,879 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:06:06,881 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:06:06,883 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:06:06,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:06:06,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:06:06,892 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 17:06:06,907 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 17:06:06,925 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:06:06,925 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:06:06,928 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:06:06,928 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:06:06,929 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:06:06,929 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:06:06,929 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:06:06,929 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:06:06,929 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:06:06,930 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:06:06,930 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:06:06,930 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:06:06,930 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:06:06,930 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:06:06,930 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:06:06,932 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:06:06,932 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:06:06,932 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:06:06,932 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:06:06,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:06:06,933 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:06:06,933 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:06:06,933 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:06:06,933 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:06:06,933 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:06:06,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:06:06,934 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:06:06,934 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:06:06,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:06:06,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:06:06,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:06:06,995 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:06:06,996 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:06:06,996 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label34_true-unreach-call.c [2018-10-24 17:06:07,048 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c9183d1a7/ea8dfd81440943f59e51c0acfff4763f/FLAGb82c42e31 [2018-10-24 17:06:07,886 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:06:07,887 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label34_true-unreach-call.c [2018-10-24 17:06:07,930 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c9183d1a7/ea8dfd81440943f59e51c0acfff4763f/FLAGb82c42e31 [2018-10-24 17:06:07,946 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c9183d1a7/ea8dfd81440943f59e51c0acfff4763f [2018-10-24 17:06:07,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:06:07,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:06:07,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:06:07,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:06:07,969 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:06:07,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:06:07" (1/1) ... [2018-10-24 17:06:07,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3530b98d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:07, skipping insertion in model container [2018-10-24 17:06:07,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:06:07" (1/1) ... [2018-10-24 17:06:07,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:06:08,210 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:06:10,376 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:06:10,380 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:06:11,457 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:06:11,511 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:06:11,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11 WrapperNode [2018-10-24 17:06:11,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:06:11,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:06:11,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:06:11,513 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:06:11,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:11,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:12,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:06:12,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:06:12,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:06:12,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:06:12,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:12,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:12,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:12,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:13,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:13,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:13,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (1/1) ... [2018-10-24 17:06:13,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:06:13,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:06:13,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:06:13,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:06:13,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (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 17:06:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:06:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:06:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:06:30,286 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:06:30,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:30 BoogieIcfgContainer [2018-10-24 17:06:30,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:06:30,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:06:30,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:06:30,292 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:06:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:06:07" (1/3) ... [2018-10-24 17:06:30,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aaf33d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:30, skipping insertion in model container [2018-10-24 17:06:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:11" (2/3) ... [2018-10-24 17:06:30,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aaf33d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:30, skipping insertion in model container [2018-10-24 17:06:30,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:30" (3/3) ... [2018-10-24 17:06:30,296 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label34_true-unreach-call.c [2018-10-24 17:06:30,307 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:06:30,318 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:06:30,335 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:06:30,655 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:06:30,656 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:06:30,656 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:06:30,656 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:06:30,656 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:06:30,656 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:06:30,656 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:06:30,657 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:06:30,657 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:06:30,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:06:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-24 17:06:30,734 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:06:30,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:06:30,740 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:06:30,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:06:30,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1316472986, now seen corresponding path program 1 times [2018-10-24 17:06:30,750 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:06:30,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:06:30,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:30,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:06:30,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:06:31,176 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 17:06:31,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:06:31,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:06:31,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:06:31,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:06:31,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:06:31,202 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:06:57,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:06:57,162 INFO L93 Difference]: Finished difference Result 6409 states and 12226 transitions. [2018-10-24 17:06:57,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:06:57,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-10-24 17:06:57,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:06:57,229 INFO L225 Difference]: With dead ends: 6409 [2018-10-24 17:06:57,229 INFO L226 Difference]: Without dead ends: 4653 [2018-10-24 17:06:57,238 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 17:06:57,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2018-10-24 17:06:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4617. [2018-10-24 17:06:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2018-10-24 17:06:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 7623 transitions. [2018-10-24 17:06:57,451 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 7623 transitions. Word has length 51 [2018-10-24 17:06:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:06:57,452 INFO L481 AbstractCegarLoop]: Abstraction has 4617 states and 7623 transitions. [2018-10-24 17:06:57,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:06:57,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 7623 transitions. [2018-10-24 17:06:57,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-10-24 17:06:57,458 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:06:57,459 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 17:06:57,459 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:06:57,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:06:57,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1550633685, now seen corresponding path program 1 times [2018-10-24 17:06:57,460 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:06:57,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:06:57,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:57,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:06:57,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:06:57,868 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:06:58,521 WARN L179 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 17:06:58,779 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 17:06:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:06:58,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:06:58,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:06:58,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:06:58,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:06:58,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:06:58,916 INFO L87 Difference]: Start difference. First operand 4617 states and 7623 transitions. Second operand 6 states. [2018-10-24 17:07:34,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:07:34,748 INFO L93 Difference]: Finished difference Result 20192 states and 32413 transitions. [2018-10-24 17:07:34,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:07:34,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2018-10-24 17:07:34,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:07:34,821 INFO L225 Difference]: With dead ends: 20192 [2018-10-24 17:07:34,821 INFO L226 Difference]: Without dead ends: 15577 [2018-10-24 17:07:34,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 17:07:34,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15577 states. [2018-10-24 17:07:35,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15577 to 14204. [2018-10-24 17:07:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14204 states. [2018-10-24 17:07:35,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14204 states to 14204 states and 19574 transitions. [2018-10-24 17:07:35,095 INFO L78 Accepts]: Start accepts. Automaton has 14204 states and 19574 transitions. Word has length 119 [2018-10-24 17:07:35,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:07:35,096 INFO L481 AbstractCegarLoop]: Abstraction has 14204 states and 19574 transitions. [2018-10-24 17:07:35,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:07:35,096 INFO L276 IsEmpty]: Start isEmpty. Operand 14204 states and 19574 transitions. [2018-10-24 17:07:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-10-24 17:07:35,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:07:35,104 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:07:35,104 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:07:35,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:07:35,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1647037291, now seen corresponding path program 1 times [2018-10-24 17:07:35,105 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:07:35,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:07:35,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:35,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:07:35,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:07:35,927 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 17:07:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-10-24 17:07:36,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:07:36,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:07:36,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:07:36,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:07:36,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:07:36,311 INFO L87 Difference]: Start difference. First operand 14204 states and 19574 transitions. Second operand 7 states. [2018-10-24 17:08:14,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:14,420 INFO L93 Difference]: Finished difference Result 40712 states and 55789 transitions. [2018-10-24 17:08:14,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:08:14,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2018-10-24 17:08:14,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:14,486 INFO L225 Difference]: With dead ends: 40712 [2018-10-24 17:08:14,487 INFO L226 Difference]: Without dead ends: 26510 [2018-10-24 17:08:14,505 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 17:08:14,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26510 states. [2018-10-24 17:08:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26510 to 23774. [2018-10-24 17:08:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23774 states. [2018-10-24 17:08:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23774 states to 23774 states and 29481 transitions. [2018-10-24 17:08:14,846 INFO L78 Accepts]: Start accepts. Automaton has 23774 states and 29481 transitions. Word has length 327 [2018-10-24 17:08:14,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:14,847 INFO L481 AbstractCegarLoop]: Abstraction has 23774 states and 29481 transitions. [2018-10-24 17:08:14,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:08:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 23774 states and 29481 transitions. [2018-10-24 17:08:14,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-10-24 17:08:14,852 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:14,852 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:14,853 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:14,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:14,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1715086277, now seen corresponding path program 1 times [2018-10-24 17:08:14,853 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:14,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:14,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:14,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:14,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:15,397 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 97 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:08:15,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:08:15,397 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 17:08:15,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:15,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:08:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:08:15,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:08:15,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 17:08:15,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:08:15,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:08:15,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:08:15,771 INFO L87 Difference]: Start difference. First operand 23774 states and 29481 transitions. Second operand 5 states. [2018-10-24 17:08:52,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:52,585 INFO L93 Difference]: Finished difference Result 109446 states and 147487 transitions. [2018-10-24 17:08:52,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:08:52,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 355 [2018-10-24 17:08:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:52,731 INFO L225 Difference]: With dead ends: 109446 [2018-10-24 17:08:52,731 INFO L226 Difference]: Without dead ends: 76108 [2018-10-24 17:08:52,774 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:08:52,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76108 states. [2018-10-24 17:08:54,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76108 to 76005. [2018-10-24 17:08:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76005 states. [2018-10-24 17:08:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76005 states to 76005 states and 90448 transitions. [2018-10-24 17:08:54,230 INFO L78 Accepts]: Start accepts. Automaton has 76005 states and 90448 transitions. Word has length 355 [2018-10-24 17:08:54,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:54,231 INFO L481 AbstractCegarLoop]: Abstraction has 76005 states and 90448 transitions. [2018-10-24 17:08:54,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:08:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 76005 states and 90448 transitions. [2018-10-24 17:08:54,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-10-24 17:08:54,239 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:54,240 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:54,240 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:54,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:54,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1663858243, now seen corresponding path program 1 times [2018-10-24 17:08:54,241 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:54,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:54,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:54,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:54,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 97 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 17:08:54,842 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:08:54,842 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 17:08:54,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:54,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:08:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:08:55,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:08:55,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 17:08:55,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:08:55,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:08:55,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:08:55,121 INFO L87 Difference]: Start difference. First operand 76005 states and 90448 transitions. Second operand 4 states. [2018-10-24 17:09:20,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:09:20,356 INFO L93 Difference]: Finished difference Result 271198 states and 327262 transitions. [2018-10-24 17:09:20,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:09:20,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 365 [2018-10-24 17:09:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:09:20,571 INFO L225 Difference]: With dead ends: 271198 [2018-10-24 17:09:20,571 INFO L226 Difference]: Without dead ends: 196561 [2018-10-24 17:09:20,642 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 365 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 17:09:20,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196561 states. [2018-10-24 17:09:22,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196561 to 126540. [2018-10-24 17:09:22,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126540 states. [2018-10-24 17:09:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126540 states to 126540 states and 149973 transitions. [2018-10-24 17:09:22,803 INFO L78 Accepts]: Start accepts. Automaton has 126540 states and 149973 transitions. Word has length 365 [2018-10-24 17:09:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:09:22,803 INFO L481 AbstractCegarLoop]: Abstraction has 126540 states and 149973 transitions. [2018-10-24 17:09:22,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:09:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 126540 states and 149973 transitions. [2018-10-24 17:09:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2018-10-24 17:09:22,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:22,836 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 17:09:22,836 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:22,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:22,837 INFO L82 PathProgramCache]: Analyzing trace with hash 627984762, now seen corresponding path program 1 times [2018-10-24 17:09:22,837 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:22,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:22,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:22,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:22,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:23,437 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 17:09:23,915 WARN L179 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 17:09:24,431 WARN L179 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 17:09:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 666 proven. 4 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2018-10-24 17:09:25,221 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:09:25,221 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 17:09:25,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:25,437 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:09:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2018-10-24 17:09:26,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:09:26,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 17:09:26,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:09:26,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:09:26,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:09:26,369 INFO L87 Difference]: Start difference. First operand 126540 states and 149973 transitions. Second operand 6 states. [2018-10-24 17:10:00,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:10:00,596 INFO L93 Difference]: Finished difference Result 328218 states and 392967 transitions. [2018-10-24 17:10:00,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:10:00,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 831 [2018-10-24 17:10:00,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:10:00,822 INFO L225 Difference]: With dead ends: 328218 [2018-10-24 17:10:00,822 INFO L226 Difference]: Without dead ends: 196211 [2018-10-24 17:10:00,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 831 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:10:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196211 states. [2018-10-24 17:10:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196211 to 155216. [2018-10-24 17:10:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155216 states. [2018-10-24 17:10:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155216 states to 155216 states and 171550 transitions. [2018-10-24 17:10:02,387 INFO L78 Accepts]: Start accepts. Automaton has 155216 states and 171550 transitions. Word has length 831 [2018-10-24 17:10:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:10:02,388 INFO L481 AbstractCegarLoop]: Abstraction has 155216 states and 171550 transitions. [2018-10-24 17:10:02,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:10:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 155216 states and 171550 transitions. [2018-10-24 17:10:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2018-10-24 17:10:02,433 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:02,434 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:10:02,434 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:02,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:02,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1776015434, now seen corresponding path program 1 times [2018-10-24 17:10:02,435 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:02,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:02,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:02,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:02,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 693 proven. 72 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-10-24 17:10:04,846 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:10:04,847 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 17:10:04,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:05,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-10-24 17:10:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 693 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2018-10-24 17:10:06,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:10:06,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 17:10:06,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:10:06,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:10:06,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:10:06,573 INFO L87 Difference]: Start difference. First operand 155216 states and 171550 transitions. Second operand 5 states. [2018-10-24 17:10:06,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 17:10:06,574 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:10:06,580 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:10:06,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:10:06 BoogieIcfgContainer [2018-10-24 17:10:06,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:10:06,581 INFO L168 Benchmark]: Toolchain (without parser) took 238621.77 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -154.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 17:10:06,583 INFO L168 Benchmark]: CDTParser took 0.22 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 17:10:06,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3550.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:06,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 1274.50 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 878.2 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:06,585 INFO L168 Benchmark]: Boogie Preprocessor took 900.75 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: 92.9 MB). Peak memory consumption was 92.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:06,586 INFO L168 Benchmark]: RCFGBuilder took 16598.03 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 251.1 MB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 533.6 MB). Peak memory consumption was 784.8 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:06,587 INFO L168 Benchmark]: TraceAbstraction took 216292.61 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 939.0 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -32.6 MB). Peak memory consumption was 906.4 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:06,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 3550.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1274.50 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 878.2 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 900.75 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: 92.9 MB). Peak memory consumption was 92.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16598.03 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 251.1 MB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 533.6 MB). Peak memory consumption was 784.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216292.61 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 939.0 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -32.6 MB). Peak memory consumption was 906.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 166). Cancelled while BasicCegarLoop was constructing difference of abstraction (155216states) and FLOYD_HOARE automaton (currently 2 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 215.9s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 197.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7330 SDtfs, 41316 SDslu, 3733 SDs, 0 SdLazy, 91367 SolverSat, 20479 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 167.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2663 GetRequests, 2626 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155216occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 115264 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 5743 NumberOfCodeBlocks, 5743 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 5732 ConstructedInterpolants, 0 QuantifiedInterpolants, 13444025 SizeOfPredicates, 2 NumberOfNonLiveVariables, 3087 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 5217/5362 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown