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_label32_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:45:21,585 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:45:21,589 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:45:21,606 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:45:21,607 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:45:21,608 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:45:21,609 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:45:21,611 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:45:21,612 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:45:21,613 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:45:21,614 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:45:21,614 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:45:21,615 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:45:21,616 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:45:21,618 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:45:21,618 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:45:21,619 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:45:21,621 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:45:21,623 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:45:21,625 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:45:21,626 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:45:21,627 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:45:21,630 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:45:21,630 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:45:21,630 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:45:21,631 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:45:21,632 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:45:21,633 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:45:21,634 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:45:21,635 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:45:21,635 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:45:21,636 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:45:21,639 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:45:21,663 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:45:21,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:45:21,665 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:45:21,665 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:45:21,666 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:45:21,666 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:45:21,666 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:45:21,667 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:45:21,667 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:45:21,667 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:45:21,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:45:21,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:45:21,668 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:45:21,668 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:45:21,668 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:45:21,668 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:45:21,668 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:45:21,669 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:45:21,670 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:45:21,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:45:21,671 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:45:21,671 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:45:21,671 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:45:21,671 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:45:21,672 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:45:21,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:45:21,672 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:45:21,672 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:45:21,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:45:21,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:45:21,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:45:21,746 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:45:21,746 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:45:21,747 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label32_false-unreach-call.c [2018-10-24 14:45:21,801 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/77b711ac4/7388ad5808394411a64d5adeeaab4239/FLAGad0f82778 [2018-10-24 14:45:22,816 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:45:22,817 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label32_false-unreach-call.c [2018-10-24 14:45:22,872 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/77b711ac4/7388ad5808394411a64d5adeeaab4239/FLAGad0f82778 [2018-10-24 14:45:22,893 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/77b711ac4/7388ad5808394411a64d5adeeaab4239 [2018-10-24 14:45:22,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:45:22,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:45:22,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:45:22,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:45:22,914 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:45:22,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:45:22" (1/1) ... [2018-10-24 14:45:22,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614a20c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:22, skipping insertion in model container [2018-10-24 14:45:22,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:45:22" (1/1) ... [2018-10-24 14:45:22,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:45:23,221 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:45:25,218 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:45:25,223 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:45:26,297 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:45:26,354 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:45:26,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26 WrapperNode [2018-10-24 14:45:26,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:45:26,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:45:26,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:45:26,356 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:45:26,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:26,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:27,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:45:27,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:45:27,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:45:27,445 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:45:27,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:27,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:27,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:27,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:27,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:27,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:27,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... [2018-10-24 14:45:28,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:45:28,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:45:28,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:45:28,049 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:45:28,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:45:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:45:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:45:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:45:45,384 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:45:45,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:45:45 BoogieIcfgContainer [2018-10-24 14:45:45,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:45:45,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:45:45,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:45:45,390 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:45:45,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:45:22" (1/3) ... [2018-10-24 14:45:45,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3832bbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:45:45, skipping insertion in model container [2018-10-24 14:45:45,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:45:26" (2/3) ... [2018-10-24 14:45:45,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3832bbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:45:45, skipping insertion in model container [2018-10-24 14:45:45,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:45:45" (3/3) ... [2018-10-24 14:45:45,394 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label32_false-unreach-call.c [2018-10-24 14:45:45,404 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:45:45,415 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:45:45,432 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:45:45,478 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:45:45,479 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:45:45,479 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:45:45,479 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:45:45,479 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:45:45,479 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:45:45,480 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:45:45,480 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:45:45,480 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:45:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:45:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-24 14:45:45,540 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:45,541 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] [2018-10-24 14:45:45,544 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:45,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:45,550 INFO L82 PathProgramCache]: Analyzing trace with hash 183950178, now seen corresponding path program 1 times [2018-10-24 14:45:45,552 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:45,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:45,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:45,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:45,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:45:46,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:46,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:45:46,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:45:46,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:45:46,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:45:46,127 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:46:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:13,129 INFO L93 Difference]: Finished difference Result 6406 states and 12224 transitions. [2018-10-24 14:46:13,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:46:13,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-10-24 14:46:13,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:13,192 INFO L225 Difference]: With dead ends: 6406 [2018-10-24 14:46:13,192 INFO L226 Difference]: Without dead ends: 4650 [2018-10-24 14:46:13,202 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:46:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2018-10-24 14:46:13,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4611. [2018-10-24 14:46:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4611 states. [2018-10-24 14:46:13,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4611 states to 4611 states and 7301 transitions. [2018-10-24 14:46:13,401 INFO L78 Accepts]: Start accepts. Automaton has 4611 states and 7301 transitions. Word has length 20 [2018-10-24 14:46:13,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:46:13,402 INFO L481 AbstractCegarLoop]: Abstraction has 4611 states and 7301 transitions. [2018-10-24 14:46:13,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:46:13,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4611 states and 7301 transitions. [2018-10-24 14:46:13,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-24 14:46:13,406 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:13,406 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:46:13,407 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:13,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:13,407 INFO L82 PathProgramCache]: Analyzing trace with hash -311574714, now seen corresponding path program 1 times [2018-10-24 14:46:13,407 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:13,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:13,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:13,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:13,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:13,758 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:46:14,429 WARN L179 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 14:46:14,852 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 14:46:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:46:15,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:15,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:46:15,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:46:15,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:46:15,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:46:15,193 INFO L87 Difference]: Start difference. First operand 4611 states and 7301 transitions. Second operand 6 states. [2018-10-24 14:46:54,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:54,443 INFO L93 Difference]: Finished difference Result 20180 states and 30824 transitions. [2018-10-24 14:46:54,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:46:54,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-10-24 14:46:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:54,518 INFO L225 Difference]: With dead ends: 20180 [2018-10-24 14:46:54,519 INFO L226 Difference]: Without dead ends: 15571 [2018-10-24 14:46:54,528 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:46:54,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15571 states. [2018-10-24 14:46:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15571 to 14198. [2018-10-24 14:46:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14198 states. [2018-10-24 14:46:54,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14198 states to 14198 states and 18990 transitions. [2018-10-24 14:46:54,789 INFO L78 Accepts]: Start accepts. Automaton has 14198 states and 18990 transitions. Word has length 88 [2018-10-24 14:46:54,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:46:54,790 INFO L481 AbstractCegarLoop]: Abstraction has 14198 states and 18990 transitions. [2018-10-24 14:46:54,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:46:54,790 INFO L276 IsEmpty]: Start isEmpty. Operand 14198 states and 18990 transitions. [2018-10-24 14:46:54,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-10-24 14:46:54,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:54,810 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:46:54,811 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:54,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:54,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1605014085, now seen corresponding path program 1 times [2018-10-24 14:46:54,815 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:54,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:54,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:54,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:54,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:55,390 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:46:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-24 14:46:55,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:55,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:46:55,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:46:55,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:46:55,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:46:55,741 INFO L87 Difference]: Start difference. First operand 14198 states and 18990 transitions. Second operand 7 states. [2018-10-24 14:47:30,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:30,229 INFO L93 Difference]: Finished difference Result 42065 states and 56298 transitions. [2018-10-24 14:47:30,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:47:30,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 296 [2018-10-24 14:47:30,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:30,311 INFO L225 Difference]: With dead ends: 42065 [2018-10-24 14:47:30,311 INFO L226 Difference]: Without dead ends: 27869 [2018-10-24 14:47:30,331 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:47:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27869 states. [2018-10-24 14:47:30,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27869 to 25134. [2018-10-24 14:47:30,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25134 states. [2018-10-24 14:47:30,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25134 states to 25134 states and 30401 transitions. [2018-10-24 14:47:30,772 INFO L78 Accepts]: Start accepts. Automaton has 25134 states and 30401 transitions. Word has length 296 [2018-10-24 14:47:30,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:30,773 INFO L481 AbstractCegarLoop]: Abstraction has 25134 states and 30401 transitions. [2018-10-24 14:47:30,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:47:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 25134 states and 30401 transitions. [2018-10-24 14:47:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-24 14:47:30,782 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:30,782 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:47:30,783 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:30,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:30,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1455013153, now seen corresponding path program 1 times [2018-10-24 14:47:30,783 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:30,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:30,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:30,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:30,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:31,343 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 35 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:31,344 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:47:31,344 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:47:31,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:31,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:47:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:31,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:47:31,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:47:31,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:47:31,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:47:31,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:47:31,689 INFO L87 Difference]: Start difference. First operand 25134 states and 30401 transitions. Second operand 5 states. [2018-10-24 14:48:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:07,691 INFO L93 Difference]: Finished difference Result 114900 states and 149450 transitions. [2018-10-24 14:48:07,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:48:07,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2018-10-24 14:48:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:07,866 INFO L225 Difference]: With dead ends: 114900 [2018-10-24 14:48:07,867 INFO L226 Difference]: Without dead ends: 80202 [2018-10-24 14:48:07,908 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 325 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 14:48:07,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80202 states. [2018-10-24 14:48:09,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80202 to 80104. [2018-10-24 14:48:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80104 states. [2018-10-24 14:48:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80104 states to 80104 states and 93292 transitions. [2018-10-24 14:48:09,253 INFO L78 Accepts]: Start accepts. Automaton has 80104 states and 93292 transitions. Word has length 324 [2018-10-24 14:48:09,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:09,254 INFO L481 AbstractCegarLoop]: Abstraction has 80104 states and 93292 transitions. [2018-10-24 14:48:09,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:48:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 80104 states and 93292 transitions. [2018-10-24 14:48:09,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-10-24 14:48:09,260 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:09,261 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:48:09,261 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:09,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:09,262 INFO L82 PathProgramCache]: Analyzing trace with hash 211919959, now seen corresponding path program 1 times [2018-10-24 14:48:09,262 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:09,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:09,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:09,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:09,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 35 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 14:48:10,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:48:10,170 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 14:48:10,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:10,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:48:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:48:10,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:48:10,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:48:10,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:10,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:10,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:10,422 INFO L87 Difference]: Start difference. First operand 80104 states and 93292 transitions. Second operand 4 states. [2018-10-24 14:48:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:32,475 INFO L93 Difference]: Finished difference Result 286225 states and 337230 transitions. [2018-10-24 14:48:32,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:32,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 334 [2018-10-24 14:48:32,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:32,762 INFO L225 Difference]: With dead ends: 286225 [2018-10-24 14:48:32,762 INFO L226 Difference]: Without dead ends: 207489 [2018-10-24 14:48:32,831 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:33,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207489 states. [2018-10-24 14:48:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207489 to 133370. [2018-10-24 14:48:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133370 states. [2018-10-24 14:48:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133370 states to 133370 states and 154665 transitions. [2018-10-24 14:48:34,762 INFO L78 Accepts]: Start accepts. Automaton has 133370 states and 154665 transitions. Word has length 334 [2018-10-24 14:48:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:34,762 INFO L481 AbstractCegarLoop]: Abstraction has 133370 states and 154665 transitions. [2018-10-24 14:48:34,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 133370 states and 154665 transitions. [2018-10-24 14:48:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2018-10-24 14:48:34,778 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:34,779 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:48:34,779 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:34,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:34,779 INFO L82 PathProgramCache]: Analyzing trace with hash -3166084, now seen corresponding path program 1 times [2018-10-24 14:48:34,780 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:34,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:34,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:34,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:34,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:35,348 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 14:48:35,843 WARN L179 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 14:48:36,498 WARN L179 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 14:48:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 437 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-10-24 14:48:37,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:48:37,728 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 14:48:37,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:37,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:48:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-10-24 14:48:38,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:48:38,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:48:38,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:48:38,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:48:38,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:48:38,241 INFO L87 Difference]: Start difference. First operand 133370 states and 154665 transitions. Second operand 5 states. [2018-10-24 14:48:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:59,684 INFO L93 Difference]: Finished difference Result 287231 states and 331289 transitions. [2018-10-24 14:48:59,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:48:59,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 637 [2018-10-24 14:48:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:59,899 INFO L225 Difference]: With dead ends: 287231 [2018-10-24 14:48:59,900 INFO L226 Difference]: Without dead ends: 148394 [2018-10-24 14:48:59,990 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 637 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:49:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148394 states. [2018-10-24 14:49:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148394 to 134722. [2018-10-24 14:49:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134722 states. [2018-10-24 14:49:02,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134722 states to 134722 states and 147923 transitions. [2018-10-24 14:49:02,625 INFO L78 Accepts]: Start accepts. Automaton has 134722 states and 147923 transitions. Word has length 637 [2018-10-24 14:49:02,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:02,625 INFO L481 AbstractCegarLoop]: Abstraction has 134722 states and 147923 transitions. [2018-10-24 14:49:02,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:49:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 134722 states and 147923 transitions. [2018-10-24 14:49:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2018-10-24 14:49:02,660 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:02,661 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:49:02,661 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:02,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:02,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1824791197, now seen corresponding path program 1 times [2018-10-24 14:49:02,662 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:02,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:02,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:02,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:02,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-10-24 14:49:03,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:03,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:49:03,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:49:03,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:49:03,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:49:03,818 INFO L87 Difference]: Start difference. First operand 134722 states and 147923 transitions. Second operand 4 states. Received shutdown request... [2018-10-24 14:49:11,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:49:11,072 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:49:11,077 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:49:11,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:49:11 BoogieIcfgContainer [2018-10-24 14:49:11,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:49:11,078 INFO L168 Benchmark]: Toolchain (without parser) took 228171.87 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 2.4 GB in the end (delta: -966.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 14:49:11,080 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 14:49:11,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3446.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 991.9 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:49:11,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 1088.38 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 855.6 MB). Free memory was 991.9 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:49:11,082 INFO L168 Benchmark]: Boogie Preprocessor took 604.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 94.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:49:11,083 INFO L168 Benchmark]: RCFGBuilder took 17336.02 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 272.6 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 534.7 MB). Peak memory consumption was 807.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:49:11,084 INFO L168 Benchmark]: TraceAbstraction took 205691.67 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -857.5 MB). Peak memory consumption was 192.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:49:11,090 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 3446.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 991.9 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1088.38 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 855.6 MB). Free memory was 991.9 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 604.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 94.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17336.02 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 272.6 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 534.7 MB). Peak memory consumption was 807.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205691.67 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -857.5 MB). Peak memory consumption was 192.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 73). Cancelled while BasicCegarLoop was constructing difference of abstraction (134722states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (59944 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 205.6s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 188.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8571 SDtfs, 44521 SDslu, 3692 SDs, 0 SdLazy, 87522 SolverSat, 18114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 159.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1341 GetRequests, 1302 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134722occurred 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: 6.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 92036 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 3883 NumberOfCodeBlocks, 3883 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3873 ConstructedInterpolants, 0 QuantifiedInterpolants, 7050778 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1589 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2247/2320 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown