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_label20_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:01:57,592 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:01:57,596 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:01:57,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:01:57,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:01:57,613 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:01:57,614 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:01:57,617 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:01:57,619 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:01:57,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:01:57,628 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:01:57,629 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:01:57,630 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:01:57,631 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:01:57,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:01:57,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:01:57,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:01:57,641 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:01:57,645 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:01:57,647 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:01:57,648 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:01:57,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:01:57,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 21:01:57,659 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 [2018-10-23 21:01:57,674 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:01:57,674 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:01:57,675 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:01:57,675 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 21:01:57,676 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 21:01:57,676 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 21:01:57,676 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 21:01:57,676 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:01:57,676 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:01:57,677 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:01:57,677 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:01:57,677 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:01:57,677 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:01:57,677 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:01:57,678 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:01:57,678 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:01:57,678 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:01:57,678 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:01:57,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:01:57,679 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:01:57,679 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:01:57,679 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:01:57,679 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:01:57,679 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 21:01:57,679 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:01:57,680 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:01:57,680 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:01:57,680 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:01:57,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:01:57,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:01:57,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:01:57,743 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:01:57,743 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:01:57,744 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label20_true-unreach-call.c [2018-10-23 21:01:57,804 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff1e4f489/8e07d6f82098473080450c1d03bd0c27/FLAG2253bb8ca [2018-10-23 21:01:58,682 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:01:58,682 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label20_true-unreach-call.c [2018-10-23 21:01:58,724 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff1e4f489/8e07d6f82098473080450c1d03bd0c27/FLAG2253bb8ca [2018-10-23 21:01:58,740 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff1e4f489/8e07d6f82098473080450c1d03bd0c27 [2018-10-23 21:01:58,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:01:58,755 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:01:58,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:01:58,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:01:58,760 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:01:58,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:01:58" (1/1) ... [2018-10-23 21:01:58,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a99fc8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:58, skipping insertion in model container [2018-10-23 21:01:58,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:01:58" (1/1) ... [2018-10-23 21:01:58,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:01:59,048 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:02:01,063 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:02:01,068 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:02:02,119 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:02:02,192 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:02:02,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02 WrapperNode [2018-10-23 21:02:02,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:02:02,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:02:02,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:02:02,194 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:02:02,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:02,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:03,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:02:03,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:02:03,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:02:03,381 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:02:03,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:03,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:03,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:03,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:03,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:03,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:04,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (1/1) ... [2018-10-23 21:02:04,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:02:04,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:02:04,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:02:04,304 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:02:04,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (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 [2018-10-23 21:02:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 21:02:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:02:04,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:02:26,031 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:02:26,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:02:26 BoogieIcfgContainer [2018-10-23 21:02:26,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:02:26,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:02:26,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:02:26,037 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:02:26,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:01:58" (1/3) ... [2018-10-23 21:02:26,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245493c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:02:26, skipping insertion in model container [2018-10-23 21:02:26,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:02" (2/3) ... [2018-10-23 21:02:26,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245493c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:02:26, skipping insertion in model container [2018-10-23 21:02:26,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:02:26" (3/3) ... [2018-10-23 21:02:26,042 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label20_true-unreach-call.c [2018-10-23 21:02:26,055 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:02:26,070 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:02:26,091 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:02:26,148 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 21:02:26,148 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:02:26,149 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:02:26,149 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:02:26,149 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:02:26,149 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:02:26,149 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:02:26,149 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:02:26,149 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:02:26,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 21:02:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-23 21:02:26,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:02:26,211 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] [2018-10-23 21:02:26,213 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:02:26,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:02:26,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1934902334, now seen corresponding path program 1 times [2018-10-23 21:02:26,222 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:02:26,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:02:26,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:26,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:02:26,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:02:26,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:02:26,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:02:26,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:02:26,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:02:26,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:02:26,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:02:26,743 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 21:02:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:02:54,998 INFO L93 Difference]: Finished difference Result 6326 states and 12085 transitions. [2018-10-23 21:02:54,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:02:55,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-10-23 21:02:55,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:02:55,153 INFO L225 Difference]: With dead ends: 6326 [2018-10-23 21:02:55,157 INFO L226 Difference]: Without dead ends: 4570 [2018-10-23 21:02:55,169 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 [2018-10-23 21:02:55,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2018-10-23 21:02:55,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2018-10-23 21:02:55,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2018-10-23 21:02:55,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7499 transitions. [2018-10-23 21:02:55,372 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7499 transitions. Word has length 44 [2018-10-23 21:02:55,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:02:55,372 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 7499 transitions. [2018-10-23 21:02:55,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:02:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7499 transitions. [2018-10-23 21:02:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-23 21:02:55,386 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:02:55,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:02:55,387 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:02:55,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:02:55,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1521545969, now seen corresponding path program 1 times [2018-10-23 21:02:55,388 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:02:55,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:02:55,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:55,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:02:55,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:02:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:02:55,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:02:55,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:02:55,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:02:55,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:02:55,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:02:55,684 INFO L87 Difference]: Start difference. First operand 4564 states and 7499 transitions. Second operand 4 states. [2018-10-23 21:03:24,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:03:24,439 INFO L93 Difference]: Finished difference Result 17552 states and 29056 transitions. [2018-10-23 21:03:24,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:03:24,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2018-10-23 21:03:24,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:03:24,507 INFO L225 Difference]: With dead ends: 17552 [2018-10-23 21:03:24,508 INFO L226 Difference]: Without dead ends: 12990 [2018-10-23 21:03:24,516 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 [2018-10-23 21:03:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2018-10-23 21:03:24,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 8666. [2018-10-23 21:03:24,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8666 states. [2018-10-23 21:03:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8666 states to 8666 states and 13862 transitions. [2018-10-23 21:03:24,723 INFO L78 Accepts]: Start accepts. Automaton has 8666 states and 13862 transitions. Word has length 148 [2018-10-23 21:03:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:03:24,723 INFO L481 AbstractCegarLoop]: Abstraction has 8666 states and 13862 transitions. [2018-10-23 21:03:24,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:03:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 8666 states and 13862 transitions. [2018-10-23 21:03:24,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-23 21:03:24,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:03:24,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:03:24,734 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:03:24,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:03:24,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1655785275, now seen corresponding path program 1 times [2018-10-23 21:03:24,735 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:03:24,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:03:24,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:03:24,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:03:24,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:03:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:03:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:03:25,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:03:25,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:03:25,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:03:25,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:03:25,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:03:25,107 INFO L87 Difference]: Start difference. First operand 8666 states and 13862 transitions. Second operand 4 states. [2018-10-23 21:03:47,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:03:47,655 INFO L93 Difference]: Finished difference Result 33845 states and 54415 transitions. [2018-10-23 21:03:47,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:03:47,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-10-23 21:03:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:03:47,731 INFO L225 Difference]: With dead ends: 33845 [2018-10-23 21:03:47,731 INFO L226 Difference]: Without dead ends: 25181 [2018-10-23 21:03:47,744 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 [2018-10-23 21:03:47,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25181 states. [2018-10-23 21:03:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25181 to 25141. [2018-10-23 21:03:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25141 states. [2018-10-23 21:03:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25141 states to 25141 states and 35891 transitions. [2018-10-23 21:03:48,111 INFO L78 Accepts]: Start accepts. Automaton has 25141 states and 35891 transitions. Word has length 152 [2018-10-23 21:03:48,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:03:48,112 INFO L481 AbstractCegarLoop]: Abstraction has 25141 states and 35891 transitions. [2018-10-23 21:03:48,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:03:48,112 INFO L276 IsEmpty]: Start isEmpty. Operand 25141 states and 35891 transitions. [2018-10-23 21:03:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-23 21:03:48,115 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:03:48,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:03:48,115 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:03:48,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:03:48,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1190531695, now seen corresponding path program 1 times [2018-10-23 21:03:48,116 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:03:48,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:03:48,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:03:48,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:03:48,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:03:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:03:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:03:48,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:03:48,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:03:48,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:03:48,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:03:48,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:03:48,436 INFO L87 Difference]: Start difference. First operand 25141 states and 35891 transitions. Second operand 4 states. [2018-10-23 21:04:06,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:04:06,657 INFO L93 Difference]: Finished difference Result 98401 states and 140793 transitions. [2018-10-23 21:04:06,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:04:06,659 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2018-10-23 21:04:06,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:04:06,778 INFO L225 Difference]: With dead ends: 98401 [2018-10-23 21:04:06,778 INFO L226 Difference]: Without dead ends: 73262 [2018-10-23 21:04:06,814 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 [2018-10-23 21:04:06,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73262 states. [2018-10-23 21:04:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73262 to 73242. [2018-10-23 21:04:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73242 states. [2018-10-23 21:04:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73242 states to 73242 states and 91791 transitions. [2018-10-23 21:04:07,697 INFO L78 Accepts]: Start accepts. Automaton has 73242 states and 91791 transitions. Word has length 175 [2018-10-23 21:04:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:04:07,698 INFO L481 AbstractCegarLoop]: Abstraction has 73242 states and 91791 transitions. [2018-10-23 21:04:07,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:04:07,698 INFO L276 IsEmpty]: Start isEmpty. Operand 73242 states and 91791 transitions. [2018-10-23 21:04:07,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-10-23 21:04:07,711 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:04:07,711 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:04:07,712 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:04:07,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:04:07,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1640099345, now seen corresponding path program 1 times [2018-10-23 21:04:07,712 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:04:07,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:04:07,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:07,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:04:07,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:04:08,735 WARN L179 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-23 21:04:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2018-10-23 21:04:09,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:04:09,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:04:09,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 21:04:09,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 21:04:09,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:04:09,565 INFO L87 Difference]: Start difference. First operand 73242 states and 91791 transitions. Second operand 7 states. [2018-10-23 21:04:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:04:48,664 INFO L93 Difference]: Finished difference Result 172450 states and 210821 transitions. [2018-10-23 21:04:48,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:04:48,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 499 [2018-10-23 21:04:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:04:48,790 INFO L225 Difference]: With dead ends: 172450 [2018-10-23 21:04:48,791 INFO L226 Difference]: Without dead ends: 99210 [2018-10-23 21:04:48,849 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 21:04:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99210 states. [2018-10-23 21:04:49,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99210 to 95106. [2018-10-23 21:04:49,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95106 states. [2018-10-23 21:04:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95106 states to 95106 states and 114312 transitions. [2018-10-23 21:04:49,881 INFO L78 Accepts]: Start accepts. Automaton has 95106 states and 114312 transitions. Word has length 499 [2018-10-23 21:04:49,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:04:49,882 INFO L481 AbstractCegarLoop]: Abstraction has 95106 states and 114312 transitions. [2018-10-23 21:04:49,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 21:04:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 95106 states and 114312 transitions. [2018-10-23 21:04:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-10-23 21:04:49,898 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:04:49,898 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:04:49,899 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:04:49,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:04:49,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1098389193, now seen corresponding path program 1 times [2018-10-23 21:04:49,899 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:04:49,900 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:04:49,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:49,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:04:49,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:04:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-10-23 21:04:50,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:04:50,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:04:50,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:04:50,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:04:50,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:04:50,625 INFO L87 Difference]: Start difference. First operand 95106 states and 114312 transitions. Second operand 4 states. [2018-10-23 21:05:09,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:05:09,763 INFO L93 Difference]: Finished difference Result 239398 states and 293496 transitions. [2018-10-23 21:05:09,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:05:09,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 527 [2018-10-23 21:05:09,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:05:09,937 INFO L225 Difference]: With dead ends: 239398 [2018-10-23 21:05:09,937 INFO L226 Difference]: Without dead ends: 144294 [2018-10-23 21:05:10,008 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:05:10,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144294 states. [2018-10-23 21:05:11,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144294 to 142917. [2018-10-23 21:05:11,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142917 states. [2018-10-23 21:05:11,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142917 states to 142917 states and 167346 transitions. [2018-10-23 21:05:11,885 INFO L78 Accepts]: Start accepts. Automaton has 142917 states and 167346 transitions. Word has length 527 [2018-10-23 21:05:11,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:05:11,886 INFO L481 AbstractCegarLoop]: Abstraction has 142917 states and 167346 transitions. [2018-10-23 21:05:11,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:05:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 142917 states and 167346 transitions. [2018-10-23 21:05:11,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2018-10-23 21:05:11,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:05:11,929 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:05:11,929 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:05:11,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:05:11,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1828206602, now seen corresponding path program 1 times [2018-10-23 21:05:11,930 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:05:11,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:05:11,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:11,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:05:11,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:05:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-23 21:05:13,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:05:13,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:05:13,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:05:13,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:05:13,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:05:13,082 INFO L87 Difference]: Start difference. First operand 142917 states and 167346 transitions. Second operand 4 states. [2018-10-23 21:05:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:05:32,617 INFO L93 Difference]: Finished difference Result 285835 states and 334699 transitions. [2018-10-23 21:05:32,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:05:32,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 899 [2018-10-23 21:05:32,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:05:32,809 INFO L225 Difference]: With dead ends: 285835 [2018-10-23 21:05:32,809 INFO L226 Difference]: Without dead ends: 142920 [2018-10-23 21:05:32,894 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:05:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142920 states. [2018-10-23 21:05:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142920 to 131981. [2018-10-23 21:05:34,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131981 states. [2018-10-23 21:05:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131981 states to 131981 states and 147274 transitions. [2018-10-23 21:05:34,787 INFO L78 Accepts]: Start accepts. Automaton has 131981 states and 147274 transitions. Word has length 899 [2018-10-23 21:05:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:05:34,788 INFO L481 AbstractCegarLoop]: Abstraction has 131981 states and 147274 transitions. [2018-10-23 21:05:34,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:05:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 131981 states and 147274 transitions. [2018-10-23 21:05:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2018-10-23 21:05:34,801 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:05:34,802 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:05:34,803 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:05:34,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:05:34,803 INFO L82 PathProgramCache]: Analyzing trace with hash 11216574, now seen corresponding path program 1 times [2018-10-23 21:05:34,803 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:05:34,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:05:34,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:34,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:05:34,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:05:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-10-23 21:05:36,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:05:36,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:05:36,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:05:36,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:05:36,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:05:36,069 INFO L87 Difference]: Start difference. First operand 131981 states and 147274 transitions. Second operand 4 states. Received shutdown request... [2018-10-23 21:05:55,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:05:55,637 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:05:55,643 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:05:55,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:05:55 BoogieIcfgContainer [2018-10-23 21:05:55,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:05:55,645 INFO L168 Benchmark]: Toolchain (without parser) took 236891.95 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-23 21:05:55,646 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:05:55,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3437.42 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-10-23 21:05:55,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 1186.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.0 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. [2018-10-23 21:05:55,649 INFO L168 Benchmark]: Boogie Preprocessor took 922.40 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: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:05:55,649 INFO L168 Benchmark]: RCFGBuilder took 21728.94 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.0 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -403.7 MB). Peak memory consumption was 849.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:05:55,650 INFO L168 Benchmark]: TraceAbstraction took 209611.10 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: -72.0 MB). Peak memory consumption was 961.9 MB. Max. memory is 7.1 GB. [2018-10-23 21:05:55,656 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3437.42 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1186.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.0 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 922.40 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: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 21728.94 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.0 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -403.7 MB). Peak memory consumption was 849.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209611.10 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: -72.0 MB). Peak memory consumption was 961.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 145). Cancelled while BasicCegarLoop was constructing difference of abstraction (131981states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (230404 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 209.5s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 196.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9561 SDtfs, 30867 SDslu, 3862 SDs, 0 SdLazy, 84528 SolverSat, 17525 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 168.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142917occurred 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: 6.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 20810 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 3361 NumberOfCodeBlocks, 3361 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3353 ConstructedInterpolants, 0 QuantifiedInterpolants, 4073081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 2201/2201 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown