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/Problem16_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:26:02,016 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:26:02,018 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:26:02,033 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:26:02,034 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:26:02,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:26:02,038 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:26:02,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:26:02,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:26:02,055 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:26:02,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:26:02,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:26:02,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:26:02,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:26:02,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:26:02,062 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:26:02,063 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:26:02,065 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:26:02,067 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:26:02,069 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:26:02,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:26:02,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:26:02,074 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:26:02,074 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:26:02,074 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:26:02,075 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:26:02,076 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:26:02,077 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:26:02,078 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:26:02,079 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:26:02,079 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:26:02,080 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 19:26:02,082 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 [2018-10-26 19:26:02,106 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:26:02,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:26:02,107 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:26:02,107 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:26:02,108 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:26:02,108 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:26:02,108 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:26:02,108 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:26:02,109 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:26:02,109 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:26:02,109 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:26:02,109 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:26:02,109 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:26:02,110 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:26:02,110 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:26:02,110 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:26:02,110 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:26:02,110 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:26:02,111 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:26:02,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:26:02,111 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:26:02,111 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:26:02,111 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:26:02,112 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:26:02,112 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:26:02,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:26:02,112 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:26:02,112 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 19:26:02,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:26:02,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:26:02,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:26:02,180 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:26:02,180 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:26:02,181 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label00_false-unreach-call.c [2018-10-26 19:26:02,247 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1c32e9862/a29990687b82444bae8b9081fa034b69/FLAGc7d673684 [2018-10-26 19:26:03,018 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:26:03,019 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label00_false-unreach-call.c [2018-10-26 19:26:03,036 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1c32e9862/a29990687b82444bae8b9081fa034b69/FLAGc7d673684 [2018-10-26 19:26:03,051 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1c32e9862/a29990687b82444bae8b9081fa034b69 [2018-10-26 19:26:03,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:26:03,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:26:03,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:26:03,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:26:03,069 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:26:03,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:26:03" (1/1) ... [2018-10-26 19:26:03,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6351e815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:03, skipping insertion in model container [2018-10-26 19:26:03,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:26:03" (1/1) ... [2018-10-26 19:26:03,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:26:03,164 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:26:03,850 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:26:03,854 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:26:04,114 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:26:04,136 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:26:04,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04 WrapperNode [2018-10-26 19:26:04,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:26:04,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:26:04,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:26:04,139 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:26:04,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:26:04,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:26:04,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:26:04,472 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:26:04,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (1/1) ... [2018-10-26 19:26:04,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:26:04,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:26:04,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:26:04,663 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:26:04,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (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 [2018-10-26 19:26:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 19:26:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:26:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:26:10,862 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:26:10,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:26:10 BoogieIcfgContainer [2018-10-26 19:26:10,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:26:10,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:26:10,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:26:10,872 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:26:10,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:26:03" (1/3) ... [2018-10-26 19:26:10,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef430ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:26:10, skipping insertion in model container [2018-10-26 19:26:10,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:26:04" (2/3) ... [2018-10-26 19:26:10,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef430ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:26:10, skipping insertion in model container [2018-10-26 19:26:10,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:26:10" (3/3) ... [2018-10-26 19:26:10,880 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label00_false-unreach-call.c [2018-10-26 19:26:10,889 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:26:10,898 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:26:10,916 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:26:10,956 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:26:10,957 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:26:10,957 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:26:10,957 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:26:10,957 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:26:10,958 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:26:10,958 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:26:10,958 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:26:10,958 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:26:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states. [2018-10-26 19:26:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 19:26:10,999 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:26:11,000 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] [2018-10-26 19:26:11,004 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:26:11,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:26:11,012 INFO L82 PathProgramCache]: Analyzing trace with hash 682595178, now seen corresponding path program 1 times [2018-10-26 19:26:11,014 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:26:11,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:26:11,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:11,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:26:11,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:26:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:26:11,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:26:11,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:26:11,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:26:11,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:26:11,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:26:11,423 INFO L87 Difference]: Start difference. First operand 397 states. Second operand 4 states. [2018-10-26 19:26:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:26:18,173 INFO L93 Difference]: Finished difference Result 1458 states and 2766 transitions. [2018-10-26 19:26:18,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:26:18,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-10-26 19:26:18,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:26:18,207 INFO L225 Difference]: With dead ends: 1458 [2018-10-26 19:26:18,207 INFO L226 Difference]: Without dead ends: 1054 [2018-10-26 19:26:18,213 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 [2018-10-26 19:26:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2018-10-26 19:26:18,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2018-10-26 19:26:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2018-10-26 19:26:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1744 transitions. [2018-10-26 19:26:18,334 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1744 transitions. Word has length 22 [2018-10-26 19:26:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:26:18,335 INFO L481 AbstractCegarLoop]: Abstraction has 1054 states and 1744 transitions. [2018-10-26 19:26:18,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:26:18,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1744 transitions. [2018-10-26 19:26:18,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-26 19:26:18,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:26:18,342 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 19:26:18,342 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:26:18,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:26:18,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1322096127, now seen corresponding path program 1 times [2018-10-26 19:26:18,343 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:26:18,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:26:18,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:18,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:26:18,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:26:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:26:18,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:26:18,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:26:18,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:26:18,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:26:18,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:26:18,623 INFO L87 Difference]: Start difference. First operand 1054 states and 1744 transitions. Second operand 4 states. [2018-10-26 19:26:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:26:24,177 INFO L93 Difference]: Finished difference Result 4102 states and 6863 transitions. [2018-10-26 19:26:24,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:26:24,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2018-10-26 19:26:24,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:26:24,196 INFO L225 Difference]: With dead ends: 4102 [2018-10-26 19:26:24,196 INFO L226 Difference]: Without dead ends: 3050 [2018-10-26 19:26:24,202 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:26:24,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2018-10-26 19:26:24,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2044. [2018-10-26 19:26:24,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2018-10-26 19:26:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 3225 transitions. [2018-10-26 19:26:24,260 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 3225 transitions. Word has length 94 [2018-10-26 19:26:24,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:26:24,261 INFO L481 AbstractCegarLoop]: Abstraction has 2044 states and 3225 transitions. [2018-10-26 19:26:24,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:26:24,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 3225 transitions. [2018-10-26 19:26:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-10-26 19:26:24,265 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:26:24,265 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 19:26:24,265 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:26:24,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:26:24,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1503220041, now seen corresponding path program 1 times [2018-10-26 19:26:24,266 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:26:24,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:26:24,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:24,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:26:24,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:26:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:26:24,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:26:24,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:26:24,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:26:24,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:26:24,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:26:24,422 INFO L87 Difference]: Start difference. First operand 2044 states and 3225 transitions. Second operand 4 states. [2018-10-26 19:26:29,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:26:29,165 INFO L93 Difference]: Finished difference Result 4746 states and 7314 transitions. [2018-10-26 19:26:29,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:26:29,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-10-26 19:26:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:26:29,180 INFO L225 Difference]: With dead ends: 4746 [2018-10-26 19:26:29,181 INFO L226 Difference]: Without dead ends: 2704 [2018-10-26 19:26:29,184 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 [2018-10-26 19:26:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2018-10-26 19:26:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2704. [2018-10-26 19:26:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2704 states. [2018-10-26 19:26:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2704 states to 2704 states and 3767 transitions. [2018-10-26 19:26:29,235 INFO L78 Accepts]: Start accepts. Automaton has 2704 states and 3767 transitions. Word has length 98 [2018-10-26 19:26:29,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:26:29,235 INFO L481 AbstractCegarLoop]: Abstraction has 2704 states and 3767 transitions. [2018-10-26 19:26:29,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:26:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2704 states and 3767 transitions. [2018-10-26 19:26:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-26 19:26:29,242 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:26:29,243 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 19:26:29,243 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:26:29,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:26:29,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1510087897, now seen corresponding path program 1 times [2018-10-26 19:26:29,243 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:26:29,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:26:29,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:29,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:26:29,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:26:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:26:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:26:29,439 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:26:29,439 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 [2018-10-26 19:26:29,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:26:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:26:29,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:26:29,816 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 25 [2018-10-26 19:26:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:26:29,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:26:29,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-26 19:26:29,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 19:26:29,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 19:26:29,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:26:29,935 INFO L87 Difference]: Start difference. First operand 2704 states and 3767 transitions. Second operand 5 states. [2018-10-26 19:29:44,385 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:333) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:257) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:689) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Broken pipe at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:326) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-10-26 19:29:44,392 INFO L168 Benchmark]: Toolchain (without parser) took 221329.42 ms. Allocated memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -510.9 MB). Peak memory consumption was 621.5 MB. Max. memory is 7.1 GB. [2018-10-26 19:29:44,393 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 19:29:44,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1073.75 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-26 19:29:44,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 332.24 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -895.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-26 19:29:44,398 INFO L168 Benchmark]: Boogie Preprocessor took 191.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2018-10-26 19:29:44,399 INFO L168 Benchmark]: RCFGBuilder took 6202.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 276.4 MB). Peak memory consumption was 276.4 MB. Max. memory is 7.1 GB. [2018-10-26 19:29:44,400 INFO L168 Benchmark]: TraceAbstraction took 213524.44 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 356.0 MB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 10.6 MB). Peak memory consumption was 366.6 MB. Max. memory is 7.1 GB. [2018-10-26 19:29:44,416 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 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1073.75 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 332.24 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -895.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 191.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6202.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 276.4 MB). Peak memory consumption was 276.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213524.44 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 356.0 MB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 10.6 MB). Peak memory consumption was 366.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...