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_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:03:52,063 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:03:52,066 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:03:52,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:03:52,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:03:52,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:03:52,086 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:03:52,089 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:03:52,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:03:52,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:03:52,095 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:03:52,096 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:03:52,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:03:52,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:03:52,101 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:03:52,102 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:03:52,103 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:03:52,112 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:03:52,114 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:03:52,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:03:52,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:03:52,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:03:52,127 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 21:03:52,138 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 [2018-10-23 21:03:52,164 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:03:52,164 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:03:52,165 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:03:52,165 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 21:03:52,165 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 21:03:52,167 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 21:03:52,167 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 21:03:52,167 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:03:52,167 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:03:52,167 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:03:52,168 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:03:52,168 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:03:52,168 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:03:52,168 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:03:52,168 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:03:52,169 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:03:52,170 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:03:52,170 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:03:52,170 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:03:52,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:03:52,171 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:03:52,171 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:03:52,171 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:03:52,171 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 21:03:52,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:03:52,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:03:52,172 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:03:52,172 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:03:52,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:03:52,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:03:52,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:03:52,262 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:03:52,262 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:03:52,263 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label38_true-unreach-call.c [2018-10-23 21:03:52,325 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/99934861c/d3a78d1ae5a64aac9205e7ab81046406/FLAG5668b5019 [2018-10-23 21:03:53,248 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:03:53,249 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label38_true-unreach-call.c [2018-10-23 21:03:53,290 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/99934861c/d3a78d1ae5a64aac9205e7ab81046406/FLAG5668b5019 [2018-10-23 21:03:53,305 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/99934861c/d3a78d1ae5a64aac9205e7ab81046406 [2018-10-23 21:03:53,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:03:53,319 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:03:53,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:03:53,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:03:53,325 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:03:53,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:03:53" (1/1) ... [2018-10-23 21:03:53,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd5a079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:53, skipping insertion in model container [2018-10-23 21:03:53,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:03:53" (1/1) ... [2018-10-23 21:03:53,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:03:53,605 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:03:55,541 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:03:55,546 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:03:56,581 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:03:56,636 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:03:56,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56 WrapperNode [2018-10-23 21:03:56,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:03:56,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:03:56,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:03:56,638 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:03:56,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:56,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:57,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:03:57,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:03:57,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:03:57,824 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:03:57,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:57,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:57,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:57,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:58,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:58,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:58,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (1/1) ... [2018-10-23 21:03:58,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:03:58,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:03:58,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:03:58,573 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:03:58,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (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 [2018-10-23 21:03:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 21:03:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:03:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:04:15,125 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:04:15,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:04:15 BoogieIcfgContainer [2018-10-23 21:04:15,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:04:15,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:04:15,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:04:15,131 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:04:15,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:03:53" (1/3) ... [2018-10-23 21:04:15,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735c0a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:04:15, skipping insertion in model container [2018-10-23 21:04:15,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:56" (2/3) ... [2018-10-23 21:04:15,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735c0a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:04:15, skipping insertion in model container [2018-10-23 21:04:15,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:04:15" (3/3) ... [2018-10-23 21:04:15,135 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label38_true-unreach-call.c [2018-10-23 21:04:15,146 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:04:15,156 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:04:15,174 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:04:15,226 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 21:04:15,227 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:04:15,227 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:04:15,227 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:04:15,227 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:04:15,227 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:04:15,228 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:04:15,228 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:04:15,228 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:04:15,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 21:04:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-23 21:04:15,288 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:04:15,290 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:04:15,292 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:04:15,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:04:15,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1074201598, now seen corresponding path program 1 times [2018-10-23 21:04:15,300 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:04:15,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:04:15,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:15,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:04:15,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:04:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:04:16,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:04:16,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:04:16,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:04:16,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:04:16,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:04:16,197 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 21:04:44,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:04:44,507 INFO L93 Difference]: Finished difference Result 6326 states and 12085 transitions. [2018-10-23 21:04:44,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:04:44,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-10-23 21:04:44,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:04:44,568 INFO L225 Difference]: With dead ends: 6326 [2018-10-23 21:04:44,568 INFO L226 Difference]: Without dead ends: 4570 [2018-10-23 21:04:44,579 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:04:44,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2018-10-23 21:04:44,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2018-10-23 21:04:44,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2018-10-23 21:04:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7499 transitions. [2018-10-23 21:04:44,793 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7499 transitions. Word has length 60 [2018-10-23 21:04:44,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:04:44,794 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 7499 transitions. [2018-10-23 21:04:44,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:04:44,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7499 transitions. [2018-10-23 21:04:44,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-10-23 21:04:44,805 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:04:44,805 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:04:44,806 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:04:44,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:04:44,806 INFO L82 PathProgramCache]: Analyzing trace with hash -235523505, now seen corresponding path program 1 times [2018-10-23 21:04:44,806 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:04:44,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:04:44,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:44,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:04:44,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:04:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:04:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:04:45,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:04:45,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:04:45,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:04:45,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:04:45,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:04:45,211 INFO L87 Difference]: Start difference. First operand 4564 states and 7499 transitions. Second operand 4 states. [2018-10-23 21:05:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:05:19,049 INFO L93 Difference]: Finished difference Result 17552 states and 29056 transitions. [2018-10-23 21:05:19,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:05:19,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2018-10-23 21:05:19,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:05:19,110 INFO L225 Difference]: With dead ends: 17552 [2018-10-23 21:05:19,110 INFO L226 Difference]: Without dead ends: 12990 [2018-10-23 21:05:19,119 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 [2018-10-23 21:05:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2018-10-23 21:05:19,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 8666. [2018-10-23 21:05:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8666 states. [2018-10-23 21:05:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8666 states to 8666 states and 13862 transitions. [2018-10-23 21:05:19,322 INFO L78 Accepts]: Start accepts. Automaton has 8666 states and 13862 transitions. Word has length 164 [2018-10-23 21:05:19,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:05:19,323 INFO L481 AbstractCegarLoop]: Abstraction has 8666 states and 13862 transitions. [2018-10-23 21:05:19,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:05:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 8666 states and 13862 transitions. [2018-10-23 21:05:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-10-23 21:05:19,333 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:05:19,335 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:05:19,335 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:05:19,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:05:19,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1859924485, now seen corresponding path program 1 times [2018-10-23 21:05:19,336 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:05:19,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:05:19,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:19,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:05:19,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:05:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:05:19,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:05:19,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:05:19,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:05:19,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:05:19,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:05:19,711 INFO L87 Difference]: Start difference. First operand 8666 states and 13862 transitions. Second operand 4 states. [2018-10-23 21:05:40,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:05:40,674 INFO L93 Difference]: Finished difference Result 33844 states and 54415 transitions. [2018-10-23 21:05:40,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:05:40,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2018-10-23 21:05:40,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:05:40,741 INFO L225 Difference]: With dead ends: 33844 [2018-10-23 21:05:40,742 INFO L226 Difference]: Without dead ends: 25180 [2018-10-23 21:05:40,751 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 [2018-10-23 21:05:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25180 states. [2018-10-23 21:05:41,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25180 to 25142. [2018-10-23 21:05:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25142 states. [2018-10-23 21:05:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25142 states to 25142 states and 35892 transitions. [2018-10-23 21:05:41,110 INFO L78 Accepts]: Start accepts. Automaton has 25142 states and 35892 transitions. Word has length 168 [2018-10-23 21:05:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:05:41,111 INFO L481 AbstractCegarLoop]: Abstraction has 25142 states and 35892 transitions. [2018-10-23 21:05:41,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:05:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25142 states and 35892 transitions. [2018-10-23 21:05:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-23 21:05:41,115 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:05:41,116 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:05:41,116 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:05:41,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:05:41,116 INFO L82 PathProgramCache]: Analyzing trace with hash -816276188, now seen corresponding path program 1 times [2018-10-23 21:05:41,117 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:05:41,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:05:41,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:41,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:05:41,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:05:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:05:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-23 21:05:41,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:05:41,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:05:41,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:05:41,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:05:41,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:05:41,454 INFO L87 Difference]: Start difference. First operand 25142 states and 35892 transitions. Second operand 4 states. [2018-10-23 21:06:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:06:04,522 INFO L93 Difference]: Finished difference Result 98404 states and 140796 transitions. [2018-10-23 21:06:04,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:06:04,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2018-10-23 21:06:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:06:04,644 INFO L225 Difference]: With dead ends: 98404 [2018-10-23 21:06:04,644 INFO L226 Difference]: Without dead ends: 73264 [2018-10-23 21:06:04,678 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 [2018-10-23 21:06:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73264 states. [2018-10-23 21:06:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73264 to 73244. [2018-10-23 21:06:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73244 states. [2018-10-23 21:06:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73244 states to 73244 states and 91793 transitions. [2018-10-23 21:06:05,512 INFO L78 Accepts]: Start accepts. Automaton has 73244 states and 91793 transitions. Word has length 226 [2018-10-23 21:06:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:06:05,513 INFO L481 AbstractCegarLoop]: Abstraction has 73244 states and 91793 transitions. [2018-10-23 21:06:05,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:06:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 73244 states and 91793 transitions. [2018-10-23 21:06:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2018-10-23 21:06:05,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:06:05,533 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:06:05,534 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:06:05,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:06:05,534 INFO L82 PathProgramCache]: Analyzing trace with hash -780358073, now seen corresponding path program 1 times [2018-10-23 21:06:05,534 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:06:05,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:06:05,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:05,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:06:05,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:06:06,017 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 21:06:06,404 WARN L179 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-23 21:06:06,548 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-10-23 21:06:06,746 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 26 [2018-10-23 21:06:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2018-10-23 21:06:07,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:06:07,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:06:07,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 21:06:07,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 21:06:07,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:06:07,584 INFO L87 Difference]: Start difference. First operand 73244 states and 91793 transitions. Second operand 7 states. [2018-10-23 21:06:48,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:06:48,200 INFO L93 Difference]: Finished difference Result 172454 states and 210825 transitions. [2018-10-23 21:06:48,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:06:48,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 652 [2018-10-23 21:06:48,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:06:48,351 INFO L225 Difference]: With dead ends: 172454 [2018-10-23 21:06:48,352 INFO L226 Difference]: Without dead ends: 99212 [2018-10-23 21:06:48,409 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 [2018-10-23 21:06:48,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99212 states. [2018-10-23 21:06:49,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99212 to 95108. [2018-10-23 21:06:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95108 states. [2018-10-23 21:06:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95108 states to 95108 states and 114314 transitions. [2018-10-23 21:06:49,359 INFO L78 Accepts]: Start accepts. Automaton has 95108 states and 114314 transitions. Word has length 652 [2018-10-23 21:06:49,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:06:49,360 INFO L481 AbstractCegarLoop]: Abstraction has 95108 states and 114314 transitions. [2018-10-23 21:06:49,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 21:06:49,360 INFO L276 IsEmpty]: Start isEmpty. Operand 95108 states and 114314 transitions. [2018-10-23 21:06:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2018-10-23 21:06:49,386 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:06:49,387 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:06:49,387 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:06:49,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:06:49,387 INFO L82 PathProgramCache]: Analyzing trace with hash -898545183, now seen corresponding path program 1 times [2018-10-23 21:06:49,388 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:06:49,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:06:49,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:49,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:06:49,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:06:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-23 21:06:50,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:06:50,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:06:50,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:06:50,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:06:50,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:06:50,136 INFO L87 Difference]: Start difference. First operand 95108 states and 114314 transitions. Second operand 4 states. [2018-10-23 21:07:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:07:11,866 INFO L93 Difference]: Finished difference Result 242134 states and 296483 transitions. [2018-10-23 21:07:11,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:07:11,867 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 680 [2018-10-23 21:07:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:07:12,062 INFO L225 Difference]: With dead ends: 242134 [2018-10-23 21:07:12,063 INFO L226 Difference]: Without dead ends: 147028 [2018-10-23 21:07:12,151 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:07:12,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147028 states. [2018-10-23 21:07:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147028 to 142919. [2018-10-23 21:07:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142919 states. [2018-10-23 21:07:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142919 states to 142919 states and 167348 transitions. [2018-10-23 21:07:13,998 INFO L78 Accepts]: Start accepts. Automaton has 142919 states and 167348 transitions. Word has length 680 [2018-10-23 21:07:13,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:07:13,999 INFO L481 AbstractCegarLoop]: Abstraction has 142919 states and 167348 transitions. [2018-10-23 21:07:13,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:07:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand 142919 states and 167348 transitions. [2018-10-23 21:07:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2018-10-23 21:07:14,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:07:14,015 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:07:14,016 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:07:14,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:07:14,016 INFO L82 PathProgramCache]: Analyzing trace with hash 721397578, now seen corresponding path program 1 times [2018-10-23 21:07:14,016 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:07:14,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:07:14,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:14,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:14,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:15,163 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-23 21:07:15,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:07:15,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:07:15,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:07:15,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:07:15,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:07:15,166 INFO L87 Difference]: Start difference. First operand 142919 states and 167348 transitions. Second operand 4 states. [2018-10-23 21:07:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:07:32,991 INFO L93 Difference]: Finished difference Result 285839 states and 334703 transitions. [2018-10-23 21:07:32,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:07:32,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 915 [2018-10-23 21:07:32,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:07:33,173 INFO L225 Difference]: With dead ends: 285839 [2018-10-23 21:07:33,174 INFO L226 Difference]: Without dead ends: 142922 [2018-10-23 21:07:33,256 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:07:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142922 states. [2018-10-23 21:07:35,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142922 to 131983. [2018-10-23 21:07:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131983 states. [2018-10-23 21:07:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131983 states to 131983 states and 147276 transitions. [2018-10-23 21:07:35,205 INFO L78 Accepts]: Start accepts. Automaton has 131983 states and 147276 transitions. Word has length 915 [2018-10-23 21:07:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:07:35,207 INFO L481 AbstractCegarLoop]: Abstraction has 131983 states and 147276 transitions. [2018-10-23 21:07:35,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:07:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 131983 states and 147276 transitions. [2018-10-23 21:07:35,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2018-10-23 21:07:35,223 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:07:35,224 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:07:35,224 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:07:35,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:07:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash 85037834, now seen corresponding path program 1 times [2018-10-23 21:07:35,225 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:07:35,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:07:35,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:35,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:35,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2018-10-23 21:07:37,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:07:37,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:07:37,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:07:37,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:07:37,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:07:37,373 INFO L87 Difference]: Start difference. First operand 131983 states and 147276 transitions. Second operand 4 states. Received shutdown request... [2018-10-23 21:07:55,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:07:55,035 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:07:55,041 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:07:55,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:07:55 BoogieIcfgContainer [2018-10-23 21:07:55,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:07:55,043 INFO L168 Benchmark]: Toolchain (without parser) took 241724.51 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -424.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-23 21:07:55,044 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:07:55,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3317.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 990.4 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:07:55,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 1185.32 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 855.1 MB). Free memory was 990.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-23 21:07:55,049 INFO L168 Benchmark]: Boogie Preprocessor took 748.90 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 101.6 MB). Peak memory consumption was 101.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:07:55,050 INFO L168 Benchmark]: RCFGBuilder took 16553.77 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 263.2 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 505.6 MB). Peak memory consumption was 768.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:07:55,053 INFO L168 Benchmark]: TraceAbstraction took 219914.38 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 925.9 MB). Free memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: -296.5 MB). Peak memory consumption was 629.4 MB. Max. memory is 7.1 GB. [2018-10-23 21:07:55,058 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3317.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 990.4 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1185.32 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 855.1 MB). Free memory was 990.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 748.90 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 101.6 MB). Peak memory consumption was 101.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16553.77 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 263.2 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 505.6 MB). Peak memory consumption was 768.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219914.38 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 925.9 MB). Free memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: -296.5 MB). Peak memory consumption was 629.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 193]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 193). Cancelled while BasicCegarLoop was constructing difference of abstraction (131983states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (217134 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 219.8s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 205.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9562 SDtfs, 32166 SDslu, 3561 SDs, 0 SdLazy, 82634 SolverSat, 17468 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 177.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142919occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 6.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 23540 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 3912 NumberOfCodeBlocks, 3912 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3904 ConstructedInterpolants, 0 QuantifiedInterpolants, 5189377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 3069/3069 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown