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_label20_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:05:35,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:05:35,860 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:05:35,873 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:05:35,873 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:05:35,874 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:05:35,876 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:05:35,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:05:35,879 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:05:35,880 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:05:35,881 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:05:35,881 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:05:35,882 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:05:35,883 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:05:35,884 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:05:35,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:05:35,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:05:35,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:05:35,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:05:35,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:05:35,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:05:35,894 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:05:35,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 17:05:35,905 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 17:05:35,931 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:05:35,932 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:05:35,933 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:05:35,933 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:05:35,933 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:05:35,934 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:05:35,934 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:05:35,934 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:05:35,934 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:05:35,935 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:05:35,935 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:05:35,935 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:05:35,935 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:05:35,935 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:05:35,936 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:05:35,936 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:05:35,936 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:05:35,936 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:05:35,936 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:05:35,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:05:35,937 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:05:35,937 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:05:35,937 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:05:35,938 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:05:35,938 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:05:35,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:05:35,938 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:05:35,938 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:05:35,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:05:36,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:05:36,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:05:36,009 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:05:36,009 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:05:36,010 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label20_true-unreach-call.c [2018-10-24 17:05:36,080 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ee8f1b8cf/b39a0d8333c84eecbba737259e1278c0/FLAG6427f021c [2018-10-24 17:05:37,016 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:05:37,017 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label20_true-unreach-call.c [2018-10-24 17:05:37,061 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ee8f1b8cf/b39a0d8333c84eecbba737259e1278c0/FLAG6427f021c [2018-10-24 17:05:37,076 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ee8f1b8cf/b39a0d8333c84eecbba737259e1278c0 [2018-10-24 17:05:37,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:05:37,096 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:05:37,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:05:37,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:05:37,104 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:05:37,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:05:37" (1/1) ... [2018-10-24 17:05:37,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:37, skipping insertion in model container [2018-10-24 17:05:37,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:05:37" (1/1) ... [2018-10-24 17:05:37,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:05:37,382 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:05:39,418 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:05:39,424 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:05:40,976 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:05:41,040 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:05:41,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41 WrapperNode [2018-10-24 17:05:41,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:05:41,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:05:41,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:05:41,042 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:05:41,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:41,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:42,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:05:42,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:05:42,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:05:42,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:05:42,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:42,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:42,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:42,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:42,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:42,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:42,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... [2018-10-24 17:05:43,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:05:43,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:05:43,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:05:43,034 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:05:43,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:05:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:05:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:05:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:06:01,118 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:06:01,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:01 BoogieIcfgContainer [2018-10-24 17:06:01,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:06:01,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:06:01,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:06:01,124 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:06:01,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:05:37" (1/3) ... [2018-10-24 17:06:01,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772e6ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:01, skipping insertion in model container [2018-10-24 17:06:01,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:05:41" (2/3) ... [2018-10-24 17:06:01,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772e6ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:01, skipping insertion in model container [2018-10-24 17:06:01,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:01" (3/3) ... [2018-10-24 17:06:01,128 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label20_true-unreach-call.c [2018-10-24 17:06:01,137 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:06:01,148 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:06:01,165 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:06:01,217 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:06:01,218 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:06:01,218 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:06:01,218 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:06:01,218 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:06:01,218 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:06:01,218 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:06:01,218 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:06:01,219 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:06:01,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:06:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-24 17:06:01,278 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:06:01,279 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] [2018-10-24 17:06:01,281 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:06:01,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:06:01,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1934902334, now seen corresponding path program 1 times [2018-10-24 17:06:01,290 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:06:01,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:06:01,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:01,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:06:01,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:06:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:06:01,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:06:01,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:06:01,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:06:01,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:06:01,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:06:01,839 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:06:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:06:33,678 INFO L93 Difference]: Finished difference Result 6326 states and 12085 transitions. [2018-10-24 17:06:33,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:06:33,680 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-10-24 17:06:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:06:33,737 INFO L225 Difference]: With dead ends: 6326 [2018-10-24 17:06:33,737 INFO L226 Difference]: Without dead ends: 4570 [2018-10-24 17:06:33,749 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 [2018-10-24 17:06:33,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2018-10-24 17:06:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2018-10-24 17:06:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2018-10-24 17:06:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7499 transitions. [2018-10-24 17:06:34,181 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7499 transitions. Word has length 44 [2018-10-24 17:06:34,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:06:34,182 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 7499 transitions. [2018-10-24 17:06:34,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:06:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7499 transitions. [2018-10-24 17:06:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-24 17:06:34,191 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:06:34,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:06:34,193 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:06:34,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:06:34,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1521545969, now seen corresponding path program 1 times [2018-10-24 17:06:34,193 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:06:34,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:06:34,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:34,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:06:34,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:06:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:06:34,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:06:34,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:06:34,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:06:34,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:06:34,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:06:34,596 INFO L87 Difference]: Start difference. First operand 4564 states and 7499 transitions. Second operand 4 states. [2018-10-24 17:07:06,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:07:06,382 INFO L93 Difference]: Finished difference Result 17552 states and 29056 transitions. [2018-10-24 17:07:06,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:07:06,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2018-10-24 17:07:06,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:07:06,455 INFO L225 Difference]: With dead ends: 17552 [2018-10-24 17:07:06,455 INFO L226 Difference]: Without dead ends: 12990 [2018-10-24 17:07:06,467 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:07:06,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2018-10-24 17:07:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 8666. [2018-10-24 17:07:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8666 states. [2018-10-24 17:07:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8666 states to 8666 states and 13862 transitions. [2018-10-24 17:07:06,697 INFO L78 Accepts]: Start accepts. Automaton has 8666 states and 13862 transitions. Word has length 148 [2018-10-24 17:07:06,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:07:06,697 INFO L481 AbstractCegarLoop]: Abstraction has 8666 states and 13862 transitions. [2018-10-24 17:07:06,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:07:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 8666 states and 13862 transitions. [2018-10-24 17:07:06,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-24 17:07:06,700 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:07:06,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:07:06,701 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:07:06,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:07:06,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1655785275, now seen corresponding path program 1 times [2018-10-24 17:07:06,701 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:07:06,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:07:06,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:06,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:07:06,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:07:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:07:06,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:07:06,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:07:06,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:07:06,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:07:06,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:07:06,931 INFO L87 Difference]: Start difference. First operand 8666 states and 13862 transitions. Second operand 4 states. [2018-10-24 17:07:29,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:07:29,417 INFO L93 Difference]: Finished difference Result 33845 states and 54415 transitions. [2018-10-24 17:07:29,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:07:29,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-10-24 17:07:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:07:29,501 INFO L225 Difference]: With dead ends: 33845 [2018-10-24 17:07:29,502 INFO L226 Difference]: Without dead ends: 25181 [2018-10-24 17:07:29,520 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:07:29,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25181 states. [2018-10-24 17:07:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25181 to 25141. [2018-10-24 17:07:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25141 states. [2018-10-24 17:07:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25141 states to 25141 states and 35891 transitions. [2018-10-24 17:07:29,949 INFO L78 Accepts]: Start accepts. Automaton has 25141 states and 35891 transitions. Word has length 152 [2018-10-24 17:07:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:07:29,950 INFO L481 AbstractCegarLoop]: Abstraction has 25141 states and 35891 transitions. [2018-10-24 17:07:29,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:07:29,951 INFO L276 IsEmpty]: Start isEmpty. Operand 25141 states and 35891 transitions. [2018-10-24 17:07:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-24 17:07:29,953 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:07:29,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:07:29,954 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:07:29,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:07:29,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1190531695, now seen corresponding path program 1 times [2018-10-24 17:07:29,954 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:07:29,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:07:29,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:29,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:07:29,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:07:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:07:30,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:07:30,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:07:30,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:07:30,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:07:30,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:07:30,346 INFO L87 Difference]: Start difference. First operand 25141 states and 35891 transitions. Second operand 4 states. [2018-10-24 17:07:50,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:07:50,399 INFO L93 Difference]: Finished difference Result 98401 states and 140793 transitions. [2018-10-24 17:07:50,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:07:50,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2018-10-24 17:07:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:07:50,549 INFO L225 Difference]: With dead ends: 98401 [2018-10-24 17:07:50,549 INFO L226 Difference]: Without dead ends: 73262 [2018-10-24 17:07:50,602 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:07:50,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73262 states. [2018-10-24 17:07:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73262 to 73242. [2018-10-24 17:07:51,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73242 states. [2018-10-24 17:07:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73242 states to 73242 states and 91791 transitions. [2018-10-24 17:07:51,582 INFO L78 Accepts]: Start accepts. Automaton has 73242 states and 91791 transitions. Word has length 175 [2018-10-24 17:07:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:07:51,583 INFO L481 AbstractCegarLoop]: Abstraction has 73242 states and 91791 transitions. [2018-10-24 17:07:51,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:07:51,584 INFO L276 IsEmpty]: Start isEmpty. Operand 73242 states and 91791 transitions. [2018-10-24 17:07:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-10-24 17:07:51,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:07:51,596 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:07:51,597 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:07:51,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:07:51,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1640099345, now seen corresponding path program 1 times [2018-10-24 17:07:51,597 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:07:51,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:07:51,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:51,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:07:51,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:07:52,090 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:07:52,339 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 17:07:53,222 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2018-10-24 17:07:53,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:07:53,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:07:53,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:07:53,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:07:53,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:07:53,224 INFO L87 Difference]: Start difference. First operand 73242 states and 91791 transitions. Second operand 7 states. [2018-10-24 17:08:30,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:30,067 INFO L93 Difference]: Finished difference Result 172450 states and 210821 transitions. [2018-10-24 17:08:30,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:08:30,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 499 [2018-10-24 17:08:30,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:30,235 INFO L225 Difference]: With dead ends: 172450 [2018-10-24 17:08:30,236 INFO L226 Difference]: Without dead ends: 99210 [2018-10-24 17:08:30,285 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 17:08:30,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99210 states. [2018-10-24 17:08:31,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99210 to 95106. [2018-10-24 17:08:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95106 states. [2018-10-24 17:08:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95106 states to 95106 states and 114312 transitions. [2018-10-24 17:08:31,171 INFO L78 Accepts]: Start accepts. Automaton has 95106 states and 114312 transitions. Word has length 499 [2018-10-24 17:08:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:31,171 INFO L481 AbstractCegarLoop]: Abstraction has 95106 states and 114312 transitions. [2018-10-24 17:08:31,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:08:31,172 INFO L276 IsEmpty]: Start isEmpty. Operand 95106 states and 114312 transitions. [2018-10-24 17:08:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-10-24 17:08:31,184 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:31,184 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:08:31,185 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:31,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:31,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1098389193, now seen corresponding path program 1 times [2018-10-24 17:08:31,185 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:31,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:31,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:31,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:31,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-10-24 17:08:31,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:08:31,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:08:31,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:08:31,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:08:31,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:08:31,791 INFO L87 Difference]: Start difference. First operand 95106 states and 114312 transitions. Second operand 4 states. [2018-10-24 17:08:49,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:49,499 INFO L93 Difference]: Finished difference Result 240764 states and 294965 transitions. [2018-10-24 17:08:49,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:08:49,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 527 [2018-10-24 17:08:49,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:49,672 INFO L225 Difference]: With dead ends: 240764 [2018-10-24 17:08:49,673 INFO L226 Difference]: Without dead ends: 145660 [2018-10-24 17:08:49,762 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 [2018-10-24 17:08:49,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145660 states. [2018-10-24 17:08:50,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145660 to 142917. [2018-10-24 17:08:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142917 states. [2018-10-24 17:08:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142917 states to 142917 states and 167346 transitions. [2018-10-24 17:08:51,090 INFO L78 Accepts]: Start accepts. Automaton has 142917 states and 167346 transitions. Word has length 527 [2018-10-24 17:08:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:51,091 INFO L481 AbstractCegarLoop]: Abstraction has 142917 states and 167346 transitions. [2018-10-24 17:08:51,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:08:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 142917 states and 167346 transitions. [2018-10-24 17:08:51,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2018-10-24 17:08:51,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:51,130 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:08:51,130 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:51,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:51,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1828206602, now seen corresponding path program 1 times [2018-10-24 17:08:51,131 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:51,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:51,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:51,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:51,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:52,799 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-24 17:08:52,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:08:52,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:08:52,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:08:52,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:08:52,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:08:52,801 INFO L87 Difference]: Start difference. First operand 142917 states and 167346 transitions. Second operand 4 states. [2018-10-24 17:09:09,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:09:09,218 INFO L93 Difference]: Finished difference Result 285835 states and 334699 transitions. [2018-10-24 17:09:09,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:09:09,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 899 [2018-10-24 17:09:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:09:09,417 INFO L225 Difference]: With dead ends: 285835 [2018-10-24 17:09:09,417 INFO L226 Difference]: Without dead ends: 142920 [2018-10-24 17:09:09,506 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 [2018-10-24 17:09:09,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142920 states. [2018-10-24 17:09:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142920 to 131981. [2018-10-24 17:09:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131981 states. [2018-10-24 17:09:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131981 states to 131981 states and 147274 transitions. [2018-10-24 17:09:10,740 INFO L78 Accepts]: Start accepts. Automaton has 131981 states and 147274 transitions. Word has length 899 [2018-10-24 17:09:10,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:09:10,741 INFO L481 AbstractCegarLoop]: Abstraction has 131981 states and 147274 transitions. [2018-10-24 17:09:10,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:09:10,741 INFO L276 IsEmpty]: Start isEmpty. Operand 131981 states and 147274 transitions. [2018-10-24 17:09:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2018-10-24 17:09:10,756 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:10,757 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:09:10,758 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:10,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:10,758 INFO L82 PathProgramCache]: Analyzing trace with hash 11216574, now seen corresponding path program 1 times [2018-10-24 17:09:10,758 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:10,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:10,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:10,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:10,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-10-24 17:09:11,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:09:11,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:09:11,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:09:11,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:09:11,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:09:11,893 INFO L87 Difference]: Start difference. First operand 131981 states and 147274 transitions. Second operand 4 states. Received shutdown request... [2018-10-24 17:09:34,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:09:34,904 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:09:34,910 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:09:34,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:09:34 BoogieIcfgContainer [2018-10-24 17:09:34,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:09:34,912 INFO L168 Benchmark]: Toolchain (without parser) took 237819.65 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 628.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:09:34,913 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 17:09:34,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3942.20 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: 413.9 MB). Peak memory consumption was 413.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:09:34,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 1265.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 658.5 MB). Free memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: -952.8 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. [2018-10-24 17:09:34,916 INFO L168 Benchmark]: Boogie Preprocessor took 725.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 106.0 MB). Peak memory consumption was 106.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:09:34,917 INFO L168 Benchmark]: RCFGBuilder took 18085.33 ms. Allocated memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: 329.8 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 168.4 MB). Peak memory consumption was 856.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:09:34,918 INFO L168 Benchmark]: TraceAbstraction took 213790.70 ms. Allocated memory was 2.5 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.7 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 17:09:34,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 3942.20 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: 413.9 MB). Peak memory consumption was 413.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1265.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 658.5 MB). Free memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: -952.8 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 725.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 106.0 MB). Peak memory consumption was 106.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18085.33 ms. Allocated memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: 329.8 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 168.4 MB). Peak memory consumption was 856.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213790.70 ms. Allocated memory was 2.5 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.7 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 145). Cancelled while BasicCegarLoop was constructing difference of abstraction (131981states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (286591 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.7s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 201.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9646 SDtfs, 30977 SDslu, 3815 SDs, 0 SdLazy, 84002 SolverSat, 18028 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 172.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142917occurred 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: 5.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 22176 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 3361 NumberOfCodeBlocks, 3361 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3353 ConstructedInterpolants, 0 QuantifiedInterpolants, 4073081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 2201/2201 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown