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_label43_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:50:20,072 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:50:20,077 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:50:20,098 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:50:20,099 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:50:20,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:50:20,101 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:50:20,103 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:50:20,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:50:20,106 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:50:20,107 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:50:20,107 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:50:20,108 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:50:20,109 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:50:20,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:50:20,111 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:50:20,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:50:20,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:50:20,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:50:20,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:50:20,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:50:20,121 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:50:20,123 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:50:20,124 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:50:20,124 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:50:20,126 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:50:20,127 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:50:20,131 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:50:20,132 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:50:20,134 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:50:20,134 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:50:20,134 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:50:20,135 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:50:20,135 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:50:20,139 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:50:20,140 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:50:20,140 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 19:50:20,165 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:50:20,166 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:50:20,166 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:50:20,167 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:50:20,167 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:50:20,167 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:50:20,168 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:50:20,170 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:50:20,170 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:50:20,170 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:50:20,171 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:50:20,171 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:50:20,171 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:50:20,171 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:50:20,171 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:50:20,172 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:50:20,172 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:50:20,172 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:50:20,172 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:50:20,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:50:20,174 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:50:20,174 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:50:20,174 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:50:20,174 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:50:20,175 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:50:20,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:50:20,175 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:50:20,175 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 19:50:20,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:50:20,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:50:20,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:50:20,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:50:20,258 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:50:20,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label43_false-unreach-call.c [2018-10-26 19:50:20,327 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1874246cf/699cabc3eda34a82ad76eabedec4b180/FLAGfe821023c [2018-10-26 19:50:21,309 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:50:21,310 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label43_false-unreach-call.c [2018-10-26 19:50:21,365 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1874246cf/699cabc3eda34a82ad76eabedec4b180/FLAGfe821023c [2018-10-26 19:50:21,388 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1874246cf/699cabc3eda34a82ad76eabedec4b180 [2018-10-26 19:50:21,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:50:21,405 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:50:21,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:50:21,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:50:21,412 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:50:21,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:50:21" (1/1) ... [2018-10-26 19:50:21,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b98b391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:21, skipping insertion in model container [2018-10-26 19:50:21,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:50:21" (1/1) ... [2018-10-26 19:50:21,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:50:21,669 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:50:23,654 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:50:23,661 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:50:24,862 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:50:24,921 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:50:24,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24 WrapperNode [2018-10-26 19:50:24,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:50:24,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:50:24,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:50:24,924 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:50:24,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:25,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:50:26,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:50:26,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:50:26,144 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:50:26,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (1/1) ... [2018-10-26 19:50:26,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:50:26,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:50:26,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:50:26,872 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:50:26,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (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 19:50:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 19:50:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:50:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:50:44,256 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:50:44,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:50:44 BoogieIcfgContainer [2018-10-26 19:50:44,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:50:44,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:50:44,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:50:44,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:50:44,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:50:21" (1/3) ... [2018-10-26 19:50:44,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6a9b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:50:44, skipping insertion in model container [2018-10-26 19:50:44,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:24" (2/3) ... [2018-10-26 19:50:44,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6a9b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:50:44, skipping insertion in model container [2018-10-26 19:50:44,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:50:44" (3/3) ... [2018-10-26 19:50:44,267 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label43_false-unreach-call.c [2018-10-26 19:50:44,277 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:50:44,287 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:50:44,306 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:50:44,357 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:50:44,358 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:50:44,358 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:50:44,358 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:50:44,358 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:50:44,358 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:50:44,358 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:50:44,358 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:50:44,358 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:50:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-26 19:50:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 19:50:44,417 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:50:44,418 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] [2018-10-26 19:50:44,421 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:50:44,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:50:44,427 INFO L82 PathProgramCache]: Analyzing trace with hash -314381782, now seen corresponding path program 1 times [2018-10-26 19:50:44,430 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:50:44,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:50:44,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:50:44,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:50:44,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:50:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:50:44,863 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-26 19:50:44,869 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 19:50:44,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:50:44,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:50:44,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:50:44,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:50:44,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:50:44,899 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-26 19:51:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:51:12,100 INFO L93 Difference]: Finished difference Result 6431 states and 12286 transitions. [2018-10-26 19:51:12,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:51:12,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-10-26 19:51:12,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:51:12,159 INFO L225 Difference]: With dead ends: 6431 [2018-10-26 19:51:12,160 INFO L226 Difference]: Without dead ends: 4675 [2018-10-26 19:51:12,170 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 [2018-10-26 19:51:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4675 states. [2018-10-26 19:51:12,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4675 to 4581. [2018-10-26 19:51:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4581 states. [2018-10-26 19:51:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 7890 transitions. [2018-10-26 19:51:12,411 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 7890 transitions. Word has length 23 [2018-10-26 19:51:12,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:51:12,412 INFO L481 AbstractCegarLoop]: Abstraction has 4581 states and 7890 transitions. [2018-10-26 19:51:12,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:51:12,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 7890 transitions. [2018-10-26 19:51:12,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-26 19:51:12,418 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:51:12,419 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 19:51:12,421 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:51:12,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:51:12,421 INFO L82 PathProgramCache]: Analyzing trace with hash 528267678, now seen corresponding path program 1 times [2018-10-26 19:51:12,421 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:51:12,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:51:12,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:51:12,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:51:12,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:51:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:51:12,893 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-26 19:51:13,401 WARN L179 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-26 19:51:14,022 WARN L179 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-10-26 19:51:14,200 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 4 [2018-10-26 19:51:14,304 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:51:14,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:51:14,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 19:51:14,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 19:51:14,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 19:51:14,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:51:14,307 INFO L87 Difference]: Start difference. First operand 4581 states and 7890 transitions. Second operand 6 states. [2018-10-26 19:51:47,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:51:47,059 INFO L93 Difference]: Finished difference Result 17384 states and 28714 transitions. [2018-10-26 19:51:47,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 19:51:47,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2018-10-26 19:51:47,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:51:47,123 INFO L225 Difference]: With dead ends: 17384 [2018-10-26 19:51:47,124 INFO L226 Difference]: Without dead ends: 12805 [2018-10-26 19:51:47,132 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-26 19:51:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12805 states. [2018-10-26 19:51:47,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12805 to 11430. [2018-10-26 19:51:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11430 states. [2018-10-26 19:51:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11430 states to 11430 states and 17329 transitions. [2018-10-26 19:51:47,375 INFO L78 Accepts]: Start accepts. Automaton has 11430 states and 17329 transitions. Word has length 95 [2018-10-26 19:51:47,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:51:47,375 INFO L481 AbstractCegarLoop]: Abstraction has 11430 states and 17329 transitions. [2018-10-26 19:51:47,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 19:51:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 11430 states and 17329 transitions. [2018-10-26 19:51:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-10-26 19:51:47,397 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:51:47,397 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:47,398 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:51:47,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:51:47,398 INFO L82 PathProgramCache]: Analyzing trace with hash 19672493, now seen corresponding path program 1 times [2018-10-26 19:51:47,398 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:51:47,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:51:47,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:51:47,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:51:47,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:51:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:51:48,024 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-26 19:51:48,566 WARN L179 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-26 19:51:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-26 19:51:48,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:51:48,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 19:51:48,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:51:48,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:51:48,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:51:48,920 INFO L87 Difference]: Start difference. First operand 11430 states and 17329 transitions. Second operand 7 states. [2018-10-26 19:52:23,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:52:23,643 INFO L93 Difference]: Finished difference Result 35166 states and 54823 transitions. [2018-10-26 19:52:23,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 19:52:23,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2018-10-26 19:52:23,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:52:23,716 INFO L225 Difference]: With dead ends: 35166 [2018-10-26 19:52:23,716 INFO L226 Difference]: Without dead ends: 23738 [2018-10-26 19:52:23,731 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-26 19:52:23,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23738 states. [2018-10-26 19:52:24,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23738 to 19636. [2018-10-26 19:52:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19636 states. [2018-10-26 19:52:24,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19636 states to 19636 states and 26064 transitions. [2018-10-26 19:52:24,112 INFO L78 Accepts]: Start accepts. Automaton has 19636 states and 26064 transitions. Word has length 309 [2018-10-26 19:52:24,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:52:24,114 INFO L481 AbstractCegarLoop]: Abstraction has 19636 states and 26064 transitions. [2018-10-26 19:52:24,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:52:24,114 INFO L276 IsEmpty]: Start isEmpty. Operand 19636 states and 26064 transitions. [2018-10-26 19:52:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-10-26 19:52:24,124 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:52:24,125 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:24,125 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:52:24,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:52:24,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2023125715, now seen corresponding path program 1 times [2018-10-26 19:52:24,126 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:52:24,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:52:24,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:52:24,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:52:24,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:52:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:52:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 41 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-26 19:52:24,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:52:24,695 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 19:52:24,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:52:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:52:24,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:52:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:52:25,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:52:25,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-26 19:52:25,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:52:25,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:52:25,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:52:25,011 INFO L87 Difference]: Start difference. First operand 19636 states and 26064 transitions. Second operand 4 states. [2018-10-26 19:52:53,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:52:53,525 INFO L93 Difference]: Finished difference Result 68184 states and 93591 transitions. [2018-10-26 19:52:53,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:52:53,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 337 [2018-10-26 19:52:53,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:52:53,631 INFO L225 Difference]: With dead ends: 68184 [2018-10-26 19:52:53,631 INFO L226 Difference]: Without dead ends: 49916 [2018-10-26 19:52:53,663 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 337 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 19:52:53,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49916 states. [2018-10-26 19:52:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49916 to 31922. [2018-10-26 19:52:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31922 states. [2018-10-26 19:52:54,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31922 states to 31922 states and 43418 transitions. [2018-10-26 19:52:54,353 INFO L78 Accepts]: Start accepts. Automaton has 31922 states and 43418 transitions. Word has length 337 [2018-10-26 19:52:54,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:52:54,354 INFO L481 AbstractCegarLoop]: Abstraction has 31922 states and 43418 transitions. [2018-10-26 19:52:54,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:52:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 31922 states and 43418 transitions. [2018-10-26 19:52:54,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-10-26 19:52:54,361 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:52:54,362 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:54,362 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:52:54,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:52:54,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1256201348, now seen corresponding path program 1 times [2018-10-26 19:52:54,363 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:52:54,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:52:54,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:52:54,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:52:54,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:52:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:52:55,144 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 41 proven. 65 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-10-26 19:52:55,145 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:52:55,145 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) [2018-10-26 19:52:55,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 19:52:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:52:55,274 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:52:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:52:55,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:52:55,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-26 19:52:55,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 19:52:55,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 19:52:55,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:52:55,492 INFO L87 Difference]: Start difference. First operand 31922 states and 43418 transitions. Second operand 5 states. [2018-10-26 19:53:27,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:53:27,512 INFO L93 Difference]: Finished difference Result 133872 states and 192096 transitions. [2018-10-26 19:53:27,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 19:53:27,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2018-10-26 19:53:27,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:53:27,625 INFO L225 Difference]: With dead ends: 133872 [2018-10-26 19:53:27,626 INFO L226 Difference]: Without dead ends: 97852 [2018-10-26 19:53:27,693 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:53:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97852 states. [2018-10-26 19:53:29,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97852 to 95031. [2018-10-26 19:53:29,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95031 states. [2018-10-26 19:53:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95031 states to 95031 states and 117721 transitions. [2018-10-26 19:53:29,210 INFO L78 Accepts]: Start accepts. Automaton has 95031 states and 117721 transitions. Word has length 382 [2018-10-26 19:53:29,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:53:29,211 INFO L481 AbstractCegarLoop]: Abstraction has 95031 states and 117721 transitions. [2018-10-26 19:53:29,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 19:53:29,211 INFO L276 IsEmpty]: Start isEmpty. Operand 95031 states and 117721 transitions. [2018-10-26 19:53:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2018-10-26 19:53:29,219 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:53:29,220 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:53:29,220 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:53:29,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:53:29,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1233959186, now seen corresponding path program 1 times [2018-10-26 19:53:29,221 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:53:29,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:53:29,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:53:29,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:53:29,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:53:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:53:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 256 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:53:30,228 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:53:30,228 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 [2018-10-26 19:53:30,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:53:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:53:30,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:53:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:53:30,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:53:30,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-26 19:53:30,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 19:53:30,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 19:53:30,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:53:30,648 INFO L87 Difference]: Start difference. First operand 95031 states and 117721 transitions. Second operand 5 states. [2018-10-26 19:53:56,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:53:56,628 INFO L93 Difference]: Finished difference Result 210553 states and 259099 transitions. [2018-10-26 19:53:56,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 19:53:56,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 479 [2018-10-26 19:53:56,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:53:56,783 INFO L225 Difference]: With dead ends: 210553 [2018-10-26 19:53:56,784 INFO L226 Difference]: Without dead ends: 112789 [2018-10-26 19:53:56,869 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 479 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:53:56,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112789 states. [2018-10-26 19:53:58,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112789 to 111421. [2018-10-26 19:53:58,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111421 states. [2018-10-26 19:53:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111421 states to 111421 states and 125638 transitions. [2018-10-26 19:53:58,513 INFO L78 Accepts]: Start accepts. Automaton has 111421 states and 125638 transitions. Word has length 479 [2018-10-26 19:53:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:53:58,513 INFO L481 AbstractCegarLoop]: Abstraction has 111421 states and 125638 transitions. [2018-10-26 19:53:58,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 19:53:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 111421 states and 125638 transitions. [2018-10-26 19:53:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2018-10-26 19:53:58,536 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:53:58,537 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:58,537 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:53:58,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:53:58,538 INFO L82 PathProgramCache]: Analyzing trace with hash -146976363, now seen corresponding path program 1 times [2018-10-26 19:53:58,538 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:53:58,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:53:58,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:53:58,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:53:58,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:53:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:53:59,321 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-10-26 19:54:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 41 proven. 65 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-10-26 19:54:00,296 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:54:00,296 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 19:54:00,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:54:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:54:00,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:54:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:54:02,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:54:02,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-26 19:54:02,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:54:02,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:54:02,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:54:02,372 INFO L87 Difference]: Start difference. First operand 111421 states and 125638 transitions. Second operand 7 states. Received shutdown request... [2018-10-26 19:54:19,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 19:54:19,430 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 19:54:19,437 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 19:54:19,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:54:19 BoogieIcfgContainer [2018-10-26 19:54:19,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:54:19,438 INFO L168 Benchmark]: Toolchain (without parser) took 238035.33 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 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 1.3 GB. Max. memory is 7.1 GB. [2018-10-26 19:54:19,440 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 19:54:19,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3514.86 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: 403.4 MB). Peak memory consumption was 403.4 MB. Max. memory is 7.1 GB. [2018-10-26 19:54:19,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 1220.11 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.3 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. [2018-10-26 19:54:19,443 INFO L168 Benchmark]: Boogie Preprocessor took 727.56 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. [2018-10-26 19:54:19,444 INFO L168 Benchmark]: RCFGBuilder took 17386.20 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 294.1 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -384.8 MB). Peak memory consumption was 853.8 MB. Max. memory is 7.1 GB. [2018-10-26 19:54:19,445 INFO L168 Benchmark]: TraceAbstraction took 215178.53 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: -60.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-26 19:54:19,452 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3514.86 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: 403.4 MB). Peak memory consumption was 403.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1220.11 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.3 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 727.56 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17386.20 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 294.1 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -384.8 MB). Peak memory consumption was 853.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215178.53 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: -60.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 82). Cancelled while BasicCegarLoop was constructing difference of abstraction (111421states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (156522 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 215.0s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 199.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8198 SDtfs, 53329 SDslu, 4174 SDs, 0 SdLazy, 87960 SolverSat, 24132 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 170.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1972 GetRequests, 1931 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111421occurred 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: 4.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 27754 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 4285 NumberOfCodeBlocks, 4285 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4274 ConstructedInterpolants, 0 QuantifiedInterpolants, 12381580 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2280 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1598/1736 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown