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/Problem17_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:53:14,905 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:53:14,907 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:53:14,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:53:14,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:53:14,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:53:14,922 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:53:14,924 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:53:14,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:53:14,927 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:53:14,928 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:53:14,928 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:53:14,929 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:53:14,930 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:53:14,931 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:53:14,932 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:53:14,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:53:14,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:53:14,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:53:14,939 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:53:14,940 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:53:14,942 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:53:14,944 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:53:14,945 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:53:14,945 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:53:14,946 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:53:14,947 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:53:14,948 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:53:14,949 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:53:14,950 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:53:14,951 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:53:14,951 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 16:53:14,955 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 16:53:14,986 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:53:14,987 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:53:14,988 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:53:14,988 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:53:14,989 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:53:14,989 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:53:14,990 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:53:14,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:53:14,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:53:14,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:53:14,991 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:53:14,991 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:53:14,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:53:14,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:53:14,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:53:14,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:53:14,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:53:14,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:53:14,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:53:14,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:53:14,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:53:14,994 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:53:14,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:53:14,994 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:53:14,994 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:53:14,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:53:14,995 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:53:14,996 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:53:15,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:53:15,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:53:15,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:53:15,098 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:53:15,099 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:53:15,099 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-10-24 16:53:15,169 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/936492b5d/be49b0d942334a94ba18a1026209db71/FLAG5fb65d2c1 [2018-10-24 16:53:15,909 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:53:15,910 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-10-24 16:53:15,936 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/936492b5d/be49b0d942334a94ba18a1026209db71/FLAG5fb65d2c1 [2018-10-24 16:53:15,960 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/936492b5d/be49b0d942334a94ba18a1026209db71 [2018-10-24 16:53:15,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:53:15,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:53:15,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:53:15,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:53:15,981 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:53:15,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:53:15" (1/1) ... [2018-10-24 16:53:15,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7670273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:15, skipping insertion in model container [2018-10-24 16:53:15,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:53:15" (1/1) ... [2018-10-24 16:53:15,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:53:16,122 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:53:17,161 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:53:17,170 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:53:17,559 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:53:17,585 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:53:17,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17 WrapperNode [2018-10-24 16:53:17,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:53:17,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:53:17,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:53:17,588 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:53:17,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:17,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:53:18,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:53:18,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:53:18,107 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:53:18,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (1/1) ... [2018-10-24 16:53:18,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:53:18,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:53:18,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:53:18,412 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:53:18,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (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 16:53:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:53:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:53:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:53:27,151 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:53:27,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:53:27 BoogieIcfgContainer [2018-10-24 16:53:27,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:53:27,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:53:27,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:53:27,157 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:53:27,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:53:15" (1/3) ... [2018-10-24 16:53:27,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80265e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:53:27, skipping insertion in model container [2018-10-24 16:53:27,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:53:17" (2/3) ... [2018-10-24 16:53:27,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80265e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:53:27, skipping insertion in model container [2018-10-24 16:53:27,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:53:27" (3/3) ... [2018-10-24 16:53:27,161 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label58_true-unreach-call.c [2018-10-24 16:53:27,171 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:53:27,180 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:53:27,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:53:27,238 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:53:27,238 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:53:27,239 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:53:27,239 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:53:27,239 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:53:27,239 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:53:27,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:53:27,240 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:53:27,240 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:53:27,271 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-24 16:53:27,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 16:53:27,282 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:53:27,283 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:53:27,287 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:53:27,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:53:27,294 INFO L82 PathProgramCache]: Analyzing trace with hash 279835594, now seen corresponding path program 1 times [2018-10-24 16:53:27,296 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:53:27,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:53:27,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:53:27,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:53:27,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:53:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:53:27,823 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 16:53:27,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:53:27,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:53:27,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:53:27,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:53:27,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:53:27,852 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-24 16:53:40,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:53:40,296 INFO L93 Difference]: Finished difference Result 2085 states and 3898 transitions. [2018-10-24 16:53:40,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:53:40,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-10-24 16:53:40,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:53:40,333 INFO L225 Difference]: With dead ends: 2085 [2018-10-24 16:53:40,333 INFO L226 Difference]: Without dead ends: 1487 [2018-10-24 16:53:40,340 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 16:53:40,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2018-10-24 16:53:40,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1023. [2018-10-24 16:53:40,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-10-24 16:53:40,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1623 transitions. [2018-10-24 16:53:40,460 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1623 transitions. Word has length 46 [2018-10-24 16:53:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:53:40,461 INFO L481 AbstractCegarLoop]: Abstraction has 1023 states and 1623 transitions. [2018-10-24 16:53:40,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:53:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1623 transitions. [2018-10-24 16:53:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 16:53:40,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:53:40,468 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 16:53:40,468 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:53:40,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:53:40,470 INFO L82 PathProgramCache]: Analyzing trace with hash -447668766, now seen corresponding path program 1 times [2018-10-24 16:53:40,471 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:53:40,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:53:40,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:53:40,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:53:40,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:53:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:53:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:53:40,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:53:40,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:53:40,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:53:40,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:53:40,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:53:40,713 INFO L87 Difference]: Start difference. First operand 1023 states and 1623 transitions. Second operand 4 states. [2018-10-24 16:53:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:53:51,670 INFO L93 Difference]: Finished difference Result 2908 states and 4662 transitions. [2018-10-24 16:53:51,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:53:51,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2018-10-24 16:53:51,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:53:51,680 INFO L225 Difference]: With dead ends: 2908 [2018-10-24 16:53:51,681 INFO L226 Difference]: Without dead ends: 1887 [2018-10-24 16:53:51,686 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 16:53:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2018-10-24 16:53:51,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1887. [2018-10-24 16:53:51,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2018-10-24 16:53:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2573 transitions. [2018-10-24 16:53:51,736 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2573 transitions. Word has length 114 [2018-10-24 16:53:51,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:53:51,737 INFO L481 AbstractCegarLoop]: Abstraction has 1887 states and 2573 transitions. [2018-10-24 16:53:51,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:53:51,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2573 transitions. [2018-10-24 16:53:51,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 16:53:51,742 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:53:51,742 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:51,742 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:53:51,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:53:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1997237975, now seen corresponding path program 1 times [2018-10-24 16:53:51,743 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:53:51,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:53:51,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:53:51,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:53:51,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:53:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:53:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:53:52,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:53:52,157 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 16:53:52,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:53:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:53:52,248 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:54:57,065 WARN L179 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 149 DAG size of output: 82 [2018-10-24 16:54:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:54:57,536 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:54:57,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-10-24 16:54:57,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 16:54:57,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 16:54:57,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:54:57,538 INFO L87 Difference]: Start difference. First operand 1887 states and 2573 transitions. Second operand 8 states. [2018-10-24 16:55:31,788 WARN L179 SmtUtils]: Spent 32.14 s on a formula simplification that was a NOOP. DAG size: 87 [2018-10-24 16:56:12,370 WARN L179 SmtUtils]: Spent 32.15 s on a formula simplification that was a NOOP. DAG size: 94 [2018-10-24 16:56:45,066 WARN L179 SmtUtils]: Spent 32.26 s on a formula simplification that was a NOOP. DAG size: 86 Received shutdown request... [2018-10-24 16:57:46,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 16:57:46,696 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:57:46,702 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:57:46,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:57:46 BoogieIcfgContainer [2018-10-24 16:57:46,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:57:46,704 INFO L168 Benchmark]: Toolchain (without parser) took 270730.51 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -413.5 MB). Peak memory consumption was 670.2 MB. Max. memory is 7.1 GB. [2018-10-24 16:57:46,705 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 16:57:46,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1611.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 16:57:46,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 519.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -883.4 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:57:46,712 INFO L168 Benchmark]: Boogie Preprocessor took 304.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 16:57:46,713 INFO L168 Benchmark]: RCFGBuilder took 8740.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 467.0 MB). Peak memory consumption was 467.0 MB. Max. memory is 7.1 GB. [2018-10-24 16:57:46,714 INFO L168 Benchmark]: TraceAbstraction took 259549.35 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 324.0 MB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -176.9 MB). Peak memory consumption was 147.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:57:46,723 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1611.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 519.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -883.4 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 304.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8740.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 467.0 MB). Peak memory consumption was 467.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259549.35 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 324.0 MB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -176.9 MB). Peak memory consumption was 147.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 143). Cancelled while BasicCegarLoop was constructing difference of abstraction (1887states) and FLOYD_HOARE automaton (currently 14 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (7711 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 259.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 192.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1186 SDtfs, 5509 SDslu, 860 SDs, 0 SdLazy, 10339 SolverSat, 2352 SolverUnsat, 28 SolverUnknown, 0 SolverNotchecked, 92.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 162.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1887occurred in iteration=2, 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 464 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 66.1s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 390 ConstructedInterpolants, 10 QuantifiedInterpolants, 442226 SizeOfPredicates, 5 NumberOfNonLiveVariables, 179 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 52/129 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown