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_label27_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:44:13,709 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:44:13,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:44:13,728 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:44:13,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:44:13,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:44:13,731 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:44:13,733 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:44:13,736 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:44:13,738 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:44:13,739 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:44:13,739 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:44:13,741 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:44:13,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:44:13,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:44:13,744 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:44:13,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:44:13,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:44:13,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:44:13,761 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:44:13,762 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:44:13,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:44:13,769 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:44:13,785 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 14:44:13,813 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:44:13,813 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:44:13,814 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:44:13,814 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:44:13,819 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:44:13,819 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:44:13,819 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:44:13,820 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:44:13,821 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:44:13,821 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:44:13,821 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:44:13,821 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:44:13,821 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:44:13,822 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:44:13,822 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:44:13,822 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:44:13,822 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:44:13,822 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:44:13,823 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:44:13,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:44:13,824 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:44:13,824 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:44:13,824 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:44:13,825 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:44:13,825 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:44:13,825 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:44:13,825 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:44:13,826 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:44:13,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:44:13,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:44:13,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:44:13,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:44:13,895 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:44:13,896 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label27_false-unreach-call.c [2018-10-24 14:44:13,959 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/039ead635/5dde65ed8f984412ac1e2a8d84441b77/FLAGdf62512ec [2018-10-24 14:44:14,936 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:44:14,937 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label27_false-unreach-call.c [2018-10-24 14:44:14,986 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/039ead635/5dde65ed8f984412ac1e2a8d84441b77/FLAGdf62512ec [2018-10-24 14:44:15,003 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/039ead635/5dde65ed8f984412ac1e2a8d84441b77 [2018-10-24 14:44:15,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:44:15,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:44:15,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:44:15,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:44:15,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:44:15,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:44:15" (1/1) ... [2018-10-24 14:44:15,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f2d59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:15, skipping insertion in model container [2018-10-24 14:44:15,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:44:15" (1/1) ... [2018-10-24 14:44:15,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:44:15,287 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:44:17,198 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:44:17,203 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:44:18,266 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:44:18,329 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:44:18,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18 WrapperNode [2018-10-24 14:44:18,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:44:18,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:44:18,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:44:18,331 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:44:18,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:18,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:19,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:44:19,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:44:19,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:44:19,557 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:44:19,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:19,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:19,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:19,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:19,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:20,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:20,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (1/1) ... [2018-10-24 14:44:20,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:44:20,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:44:20,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:44:20,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:44:20,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (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 14:44:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:44:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:44:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:44:37,961 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:44:37,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:44:37 BoogieIcfgContainer [2018-10-24 14:44:37,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:44:37,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:44:37,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:44:37,968 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:44:37,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:44:15" (1/3) ... [2018-10-24 14:44:37,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7ff88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:44:37, skipping insertion in model container [2018-10-24 14:44:37,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:18" (2/3) ... [2018-10-24 14:44:37,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7ff88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:44:37, skipping insertion in model container [2018-10-24 14:44:37,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:44:37" (3/3) ... [2018-10-24 14:44:37,973 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label27_false-unreach-call.c [2018-10-24 14:44:37,984 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:44:38,000 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:44:38,018 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:44:38,076 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:44:38,077 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:44:38,077 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:44:38,077 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:44:38,077 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:44:38,078 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:44:38,078 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:44:38,078 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:44:38,078 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:44:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:44:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-24 14:44:38,148 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:38,149 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] [2018-10-24 14:44:38,151 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:38,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:38,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1880720510, now seen corresponding path program 1 times [2018-10-24 14:44:38,160 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:38,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:38,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:38,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:38,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:38,559 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 14:44:38,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:44:38,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:44:38,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:44:38,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:44:38,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:44:38,580 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:45:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:01,949 INFO L93 Difference]: Finished difference Result 6361 states and 12176 transitions. [2018-10-24 14:45:01,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:45:01,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-10-24 14:45:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:02,018 INFO L225 Difference]: With dead ends: 6361 [2018-10-24 14:45:02,018 INFO L226 Difference]: Without dead ends: 4605 [2018-10-24 14:45:02,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:45:02,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2018-10-24 14:45:02,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 3148. [2018-10-24 14:45:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2018-10-24 14:45:02,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 5068 transitions. [2018-10-24 14:45:02,228 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 5068 transitions. Word has length 28 [2018-10-24 14:45:02,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:02,228 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 5068 transitions. [2018-10-24 14:45:02,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:45:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 5068 transitions. [2018-10-24 14:45:02,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 14:45:02,234 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:02,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:02,237 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:02,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:02,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2127246618, now seen corresponding path program 1 times [2018-10-24 14:45:02,237 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:02,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:02,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:02,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:02,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:02,611 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:45:03,288 WARN L179 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 14:45:03,538 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 14:45:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:45:03,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:03,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:45:03,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:45:03,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:45:03,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:45:03,798 INFO L87 Difference]: Start difference. First operand 3148 states and 5068 transitions. Second operand 6 states. [2018-10-24 14:45:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:42,814 INFO L93 Difference]: Finished difference Result 13170 states and 20020 transitions. [2018-10-24 14:45:42,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:45:42,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-10-24 14:45:42,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:42,861 INFO L225 Difference]: With dead ends: 13170 [2018-10-24 14:45:42,861 INFO L226 Difference]: Without dead ends: 10024 [2018-10-24 14:45:42,867 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:45:42,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2018-10-24 14:45:43,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 8652. [2018-10-24 14:45:43,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2018-10-24 14:45:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 12036 transitions. [2018-10-24 14:45:43,036 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 12036 transitions. Word has length 96 [2018-10-24 14:45:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:43,037 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 12036 transitions. [2018-10-24 14:45:43,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:45:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 12036 transitions. [2018-10-24 14:45:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-10-24 14:45:43,057 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:43,058 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:45:43,058 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:43,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:43,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1184973211, now seen corresponding path program 1 times [2018-10-24 14:45:43,062 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:43,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:43,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:43,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:43,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:43,906 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 14:45:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-24 14:45:44,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:44,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:45:44,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:45:44,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:45:44,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:45:44,367 INFO L87 Difference]: Start difference. First operand 8652 states and 12036 transitions. Second operand 7 states. [2018-10-24 14:46:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:17,691 INFO L93 Difference]: Finished difference Result 26878 states and 36468 transitions. [2018-10-24 14:46:17,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:46:17,693 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 304 [2018-10-24 14:46:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:17,760 INFO L225 Difference]: With dead ends: 26878 [2018-10-24 14:46:17,761 INFO L226 Difference]: Without dead ends: 18228 [2018-10-24 14:46:17,776 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:46:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18228 states. [2018-10-24 14:46:18,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18228 to 15493. [2018-10-24 14:46:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15493 states. [2018-10-24 14:46:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15493 states to 15493 states and 19189 transitions. [2018-10-24 14:46:18,264 INFO L78 Accepts]: Start accepts. Automaton has 15493 states and 19189 transitions. Word has length 304 [2018-10-24 14:46:18,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:46:18,265 INFO L481 AbstractCegarLoop]: Abstraction has 15493 states and 19189 transitions. [2018-10-24 14:46:18,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:46:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 15493 states and 19189 transitions. [2018-10-24 14:46:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-10-24 14:46:18,271 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:18,272 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:46:18,274 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:18,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:18,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1745548543, now seen corresponding path program 1 times [2018-10-24 14:46:18,275 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:18,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:18,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:18,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:18,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 51 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:46:18,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:46:18,831 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 14:46:18,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:18,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:46:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:46:19,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:46:19,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:46:19,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:46:19,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:46:19,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:46:19,222 INFO L87 Difference]: Start difference. First operand 15493 states and 19189 transitions. Second operand 5 states. [2018-10-24 14:46:59,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:59,268 INFO L93 Difference]: Finished difference Result 70982 states and 95208 transitions. [2018-10-24 14:46:59,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:46:59,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 332 [2018-10-24 14:46:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:59,376 INFO L225 Difference]: With dead ends: 70982 [2018-10-24 14:46:59,376 INFO L226 Difference]: Without dead ends: 51391 [2018-10-24 14:46:59,403 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 333 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 14:46:59,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51391 states. [2018-10-24 14:47:00,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51391 to 51309. [2018-10-24 14:47:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51309 states. [2018-10-24 14:47:00,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51309 states to 51309 states and 60472 transitions. [2018-10-24 14:47:00,125 INFO L78 Accepts]: Start accepts. Automaton has 51309 states and 60472 transitions. Word has length 332 [2018-10-24 14:47:00,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:00,126 INFO L481 AbstractCegarLoop]: Abstraction has 51309 states and 60472 transitions. [2018-10-24 14:47:00,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:47:00,126 INFO L276 IsEmpty]: Start isEmpty. Operand 51309 states and 60472 transitions. [2018-10-24 14:47:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-10-24 14:47:00,131 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:00,132 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:47:00,132 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:00,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:00,132 INFO L82 PathProgramCache]: Analyzing trace with hash 687775351, now seen corresponding path program 1 times [2018-10-24 14:47:00,132 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:00,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:00,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:00,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:00,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 14:47:00,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:47:00,766 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 14:47:00,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:00,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:47:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:01,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:47:01,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:47:01,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:47:01,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:47:01,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:01,036 INFO L87 Difference]: Start difference. First operand 51309 states and 60472 transitions. Second operand 4 states. [2018-10-24 14:47:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:23,349 INFO L93 Difference]: Finished difference Result 184884 states and 220618 transitions. [2018-10-24 14:47:23,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:47:23,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 342 [2018-10-24 14:47:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:23,615 INFO L225 Difference]: With dead ends: 184884 [2018-10-24 14:47:23,615 INFO L226 Difference]: Without dead ends: 134943 [2018-10-24 14:47:23,681 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:23,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134943 states. [2018-10-24 14:47:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134943 to 86821. [2018-10-24 14:47:25,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86821 states. [2018-10-24 14:47:25,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86821 states to 86821 states and 101826 transitions. [2018-10-24 14:47:25,337 INFO L78 Accepts]: Start accepts. Automaton has 86821 states and 101826 transitions. Word has length 342 [2018-10-24 14:47:25,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:25,338 INFO L481 AbstractCegarLoop]: Abstraction has 86821 states and 101826 transitions. [2018-10-24 14:47:25,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:47:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 86821 states and 101826 transitions. [2018-10-24 14:47:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2018-10-24 14:47:25,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:25,359 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 14:47:25,359 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:25,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:25,359 INFO L82 PathProgramCache]: Analyzing trace with hash 675887132, now seen corresponding path program 1 times [2018-10-24 14:47:25,360 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:25,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:25,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:25,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:25,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:26,427 WARN L179 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 14:47:27,092 WARN L179 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 14:47:27,766 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 453 proven. 4 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2018-10-24 14:47:27,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:47:27,767 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 14:47:27,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:27,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:47:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2018-10-24 14:47:28,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:47:28,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:47:28,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:47:28,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:47:28,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:47:28,236 INFO L87 Difference]: Start difference. First operand 86821 states and 101826 transitions. Second operand 5 states. [2018-10-24 14:47:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:52,539 INFO L93 Difference]: Finished difference Result 183205 states and 213687 transitions. [2018-10-24 14:47:52,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:47:52,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 645 [2018-10-24 14:47:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:53,159 INFO L225 Difference]: With dead ends: 183205 [2018-10-24 14:47:53,159 INFO L226 Difference]: Without dead ends: 93651 [2018-10-24 14:47:53,215 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 645 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 14:47:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93651 states. [2018-10-24 14:47:53,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93651 to 90917. [2018-10-24 14:47:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90917 states. [2018-10-24 14:47:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90917 states to 90917 states and 100330 transitions. [2018-10-24 14:47:53,975 INFO L78 Accepts]: Start accepts. Automaton has 90917 states and 100330 transitions. Word has length 645 [2018-10-24 14:47:53,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:53,976 INFO L481 AbstractCegarLoop]: Abstraction has 90917 states and 100330 transitions. [2018-10-24 14:47:53,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:47:53,976 INFO L276 IsEmpty]: Start isEmpty. Operand 90917 states and 100330 transitions. [2018-10-24 14:47:53,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2018-10-24 14:47:53,993 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:53,994 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:47:53,994 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:53,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:53,995 INFO L82 PathProgramCache]: Analyzing trace with hash 452939881, now seen corresponding path program 1 times [2018-10-24 14:47:53,995 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:53,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:53,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:53,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:53,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:54,712 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 14:47:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-24 14:47:54,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:47:54,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:47:54,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:47:54,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:47:54,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:47:54,997 INFO L87 Difference]: Start difference. First operand 90917 states and 100330 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 14:48:05,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:48:05,241 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:48:05,247 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:48:05,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:48:05 BoogieIcfgContainer [2018-10-24 14:48:05,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:48:05,248 INFO L168 Benchmark]: Toolchain (without parser) took 230231.94 ms. Allocated memory was 1.5 GB in the beginning and 3.8 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. [2018-10-24 14:48:05,250 INFO L168 Benchmark]: CDTParser took 0.23 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 14:48:05,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3311.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:05,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 1225.43 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 860.4 MB). Free memory was 1.0 GB 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 14:48:05,252 INFO L168 Benchmark]: Boogie Preprocessor took 751.29 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: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:05,253 INFO L168 Benchmark]: RCFGBuilder took 17654.63 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 266.3 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 498.1 MB). Peak memory consumption was 764.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:05,254 INFO L168 Benchmark]: TraceAbstraction took 207283.96 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -981.6 MB). Peak memory consumption was 114.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:05,259 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3311.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1225.43 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 860.4 MB). Free memory was 1.0 GB 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 751.29 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: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17654.63 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 266.3 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 498.1 MB). Peak memory consumption was 764.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207283.96 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -981.6 MB). Peak memory consumption was 114.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 97). Cancelled while BasicCegarLoop was constructing difference of abstraction (90917states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (77687 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 207.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 193.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8590 SDtfs, 43098 SDslu, 3946 SDs, 0 SdLazy, 90541 SolverSat, 17257 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 165.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1361 GetRequests, 1325 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90917occurred 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: 3.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 56502 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 3795 NumberOfCodeBlocks, 3795 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3785 ConstructedInterpolants, 0 QuantifiedInterpolants, 6641570 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1613 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2051/2124 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown