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_label10_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:37:52,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:37:52,892 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:37:52,910 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:37:52,910 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:37:52,911 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:37:52,912 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:37:52,914 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:37:52,916 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:37:52,917 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:37:52,918 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:37:52,918 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:37:52,919 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:37:52,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:37:52,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:37:52,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:37:52,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:37:52,925 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:37:52,927 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:37:52,928 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:37:52,930 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:37:52,931 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:37:52,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 18:37:52,942 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 18:37:52,960 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:37:52,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:37:52,961 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:37:52,961 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:37:52,964 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:37:52,965 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:37:52,965 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:37:52,965 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:37:52,965 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:37:52,965 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:37:52,966 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:37:52,966 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:37:52,966 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:37:52,966 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:37:52,966 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:37:52,967 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:37:52,967 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:37:52,967 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:37:52,968 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:37:52,968 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:37:52,968 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:37:52,968 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:37:52,968 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:37:52,969 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:37:52,969 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:37:52,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:37:52,969 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:37:52,969 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:37:53,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:37:53,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:37:53,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:37:53,048 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:37:53,048 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:37:53,049 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label10_false-unreach-call.c [2018-10-23 18:37:53,109 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4beed9ade/0d217a23528b448b9e0b08160ee9cacb/FLAGe3ea37811 [2018-10-23 18:37:53,965 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:37:53,965 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label10_false-unreach-call.c [2018-10-23 18:37:54,016 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4beed9ade/0d217a23528b448b9e0b08160ee9cacb/FLAGe3ea37811 [2018-10-23 18:37:54,038 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4beed9ade/0d217a23528b448b9e0b08160ee9cacb [2018-10-23 18:37:54,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:37:54,054 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:37:54,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:37:54,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:37:54,062 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:37:54,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:37:54" (1/1) ... [2018-10-23 18:37:54,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d2ecf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:54, skipping insertion in model container [2018-10-23 18:37:54,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:37:54" (1/1) ... [2018-10-23 18:37:54,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:37:54,343 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:37:56,310 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:37:56,316 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:37:57,418 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:37:57,474 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:37:57,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57 WrapperNode [2018-10-23 18:37:57,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:37:57,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:37:57,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:37:57,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:37:57,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:57,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:58,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:37:58,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:37:58,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:37:58,677 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:37:58,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:58,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:58,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:58,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:59,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:59,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:59,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (1/1) ... [2018-10-23 18:37:59,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:37:59,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:37:59,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:37:59,405 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:37:59,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (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 18:37:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:37:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:37:59,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:38:17,704 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:38:17,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:38:17 BoogieIcfgContainer [2018-10-23 18:38:17,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:38:17,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:38:17,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:38:17,712 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:38:17,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:37:54" (1/3) ... [2018-10-23 18:38:17,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e5cf95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:38:17, skipping insertion in model container [2018-10-23 18:38:17,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:57" (2/3) ... [2018-10-23 18:38:17,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e5cf95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:38:17, skipping insertion in model container [2018-10-23 18:38:17,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:38:17" (3/3) ... [2018-10-23 18:38:17,717 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label10_false-unreach-call.c [2018-10-23 18:38:17,728 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:38:17,745 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:38:17,762 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:38:17,812 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:38:17,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:38:17,813 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:38:17,813 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:38:17,814 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:38:17,814 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:38:17,814 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:38:17,814 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:38:17,814 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:38:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 18:38:17,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-23 18:38:17,876 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:38:17,877 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:38:17,880 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:38:17,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:38:17,887 INFO L82 PathProgramCache]: Analyzing trace with hash 150940466, now seen corresponding path program 1 times [2018-10-23 18:38:17,889 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:38:17,890 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:38:17,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:38:17,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:38:17,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:38:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:38:18,070 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 18:38:18,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:38:18,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:38:18,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:38:18,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:38:18,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:38:18,091 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 3 states. [2018-10-23 18:38:40,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:38:40,065 INFO L93 Difference]: Finished difference Result 4960 states and 9401 transitions. [2018-10-23 18:38:40,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:38:40,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-23 18:38:40,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:38:40,113 INFO L225 Difference]: With dead ends: 4960 [2018-10-23 18:38:40,113 INFO L226 Difference]: Without dead ends: 3207 [2018-10-23 18:38:40,125 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:38:40,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2018-10-23 18:38:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3186. [2018-10-23 18:38:40,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-10-23 18:38:40,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5129 transitions. [2018-10-23 18:38:40,323 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5129 transitions. Word has length 8 [2018-10-23 18:38:40,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:38:40,323 INFO L481 AbstractCegarLoop]: Abstraction has 3186 states and 5129 transitions. [2018-10-23 18:38:40,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:38:40,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5129 transitions. [2018-10-23 18:38:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-23 18:38:40,328 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:38:40,329 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:38:40,329 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:38:40,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:38:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash 613440982, now seen corresponding path program 1 times [2018-10-23 18:38:40,330 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:38:40,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:38:40,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:38:40,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:38:40,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:38:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:38:40,808 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 18:38:41,454 WARN L179 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-23 18:38:41,813 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-23 18:38:42,013 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 4 [2018-10-23 18:38:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:38:42,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:38:42,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 18:38:42,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:38:42,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:38:42,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:38:42,192 INFO L87 Difference]: Start difference. First operand 3186 states and 5129 transitions. Second operand 6 states. [2018-10-23 18:38:42,375 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-23 18:39:18,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:39:18,781 INFO L93 Difference]: Finished difference Result 15985 states and 25596 transitions. [2018-10-23 18:39:18,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:39:18,782 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2018-10-23 18:39:18,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:39:18,851 INFO L225 Difference]: With dead ends: 15985 [2018-10-23 18:39:18,851 INFO L226 Difference]: Without dead ends: 12801 [2018-10-23 18:39:18,858 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 18:39:18,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12801 states. [2018-10-23 18:39:19,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12801 to 11428. [2018-10-23 18:39:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11428 states. [2018-10-23 18:39:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11428 states to 11428 states and 14864 transitions. [2018-10-23 18:39:19,100 INFO L78 Accepts]: Start accepts. Automaton has 11428 states and 14864 transitions. Word has length 76 [2018-10-23 18:39:19,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:39:19,100 INFO L481 AbstractCegarLoop]: Abstraction has 11428 states and 14864 transitions. [2018-10-23 18:39:19,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:39:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 11428 states and 14864 transitions. [2018-10-23 18:39:19,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-10-23 18:39:19,117 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:39:19,118 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:19,119 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:39:19,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:39:19,119 INFO L82 PathProgramCache]: Analyzing trace with hash -315703795, now seen corresponding path program 1 times [2018-10-23 18:39:19,119 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:39:19,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:39:19,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:39:19,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:39:19,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:39:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:39:19,819 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 18:39:20,366 WARN L179 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-23 18:39:20,693 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-10-23 18:39:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-23 18:39:21,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:39:21,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 18:39:21,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 18:39:21,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 18:39:21,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:39:21,002 INFO L87 Difference]: Start difference. First operand 11428 states and 14864 transitions. Second operand 7 states. [2018-10-23 18:39:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:39:59,289 INFO L93 Difference]: Finished difference Result 35162 states and 47050 transitions. [2018-10-23 18:39:59,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:39:59,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 294 [2018-10-23 18:39:59,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:39:59,388 INFO L225 Difference]: With dead ends: 35162 [2018-10-23 18:39:59,388 INFO L226 Difference]: Without dead ends: 23736 [2018-10-23 18:39:59,407 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 18:39:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23736 states. [2018-10-23 18:39:59,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23736 to 21001. [2018-10-23 18:39:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21001 states. [2018-10-23 18:39:59,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21001 states to 21001 states and 24774 transitions. [2018-10-23 18:39:59,867 INFO L78 Accepts]: Start accepts. Automaton has 21001 states and 24774 transitions. Word has length 294 [2018-10-23 18:39:59,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:39:59,869 INFO L481 AbstractCegarLoop]: Abstraction has 21001 states and 24774 transitions. [2018-10-23 18:39:59,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 18:39:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 21001 states and 24774 transitions. [2018-10-23 18:39:59,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-10-23 18:39:59,885 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:39:59,885 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:59,886 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:39:59,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:39:59,886 INFO L82 PathProgramCache]: Analyzing trace with hash 879832359, now seen corresponding path program 1 times [2018-10-23 18:39:59,886 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:39:59,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:39:59,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:39:59,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:39:59,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:40:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:40:00,691 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-23 18:40:00,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:40:00,692 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:40:00,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:40:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:40:00,834 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:40:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:40:01,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:40:01,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 18:40:01,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:40:01,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:40:01,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:40:01,035 INFO L87 Difference]: Start difference. First operand 21001 states and 24774 transitions. Second operand 4 states. [2018-10-23 18:40:31,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:40:31,019 INFO L93 Difference]: Finished difference Result 68210 states and 82910 transitions. [2018-10-23 18:40:31,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:40:31,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 322 [2018-10-23 18:40:31,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:40:31,129 INFO L225 Difference]: With dead ends: 68210 [2018-10-23 18:40:31,129 INFO L226 Difference]: Without dead ends: 48577 [2018-10-23 18:40:31,154 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 322 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 18:40:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48577 states. [2018-10-23 18:40:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48577 to 29198. [2018-10-23 18:40:31,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29198 states. [2018-10-23 18:40:31,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29198 states to 29198 states and 35809 transitions. [2018-10-23 18:40:31,822 INFO L78 Accepts]: Start accepts. Automaton has 29198 states and 35809 transitions. Word has length 322 [2018-10-23 18:40:31,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:40:31,823 INFO L481 AbstractCegarLoop]: Abstraction has 29198 states and 35809 transitions. [2018-10-23 18:40:31,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:40:31,824 INFO L276 IsEmpty]: Start isEmpty. Operand 29198 states and 35809 transitions. [2018-10-23 18:40:31,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-10-23 18:40:31,829 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:40:31,830 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:31,830 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:40:31,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:40:31,831 INFO L82 PathProgramCache]: Analyzing trace with hash -644905657, now seen corresponding path program 1 times [2018-10-23 18:40:31,831 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:40:31,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:40:31,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:40:31,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:40:31,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:40:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:40:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:40:32,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:40:32,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:40:32,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:40:32,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:40:32,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:40:32,279 INFO L87 Difference]: Start difference. First operand 29198 states and 35809 transitions. Second operand 4 states. [2018-10-23 18:40:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:40:48,991 INFO L93 Difference]: Finished difference Result 65258 states and 81138 transitions. [2018-10-23 18:40:48,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:40:48,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 342 [2018-10-23 18:40:48,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:40:49,056 INFO L225 Difference]: With dead ends: 65258 [2018-10-23 18:40:49,056 INFO L226 Difference]: Without dead ends: 31962 [2018-10-23 18:40:49,092 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 18:40:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31962 states. [2018-10-23 18:40:49,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31962 to 31954. [2018-10-23 18:40:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31954 states. [2018-10-23 18:40:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31954 states to 31954 states and 37890 transitions. [2018-10-23 18:40:49,481 INFO L78 Accepts]: Start accepts. Automaton has 31954 states and 37890 transitions. Word has length 342 [2018-10-23 18:40:49,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:40:49,481 INFO L481 AbstractCegarLoop]: Abstraction has 31954 states and 37890 transitions. [2018-10-23 18:40:49,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:40:49,482 INFO L276 IsEmpty]: Start isEmpty. Operand 31954 states and 37890 transitions. [2018-10-23 18:40:49,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-10-23 18:40:49,489 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:40:49,490 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-23 18:40:49,490 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:40:49,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:40:49,490 INFO L82 PathProgramCache]: Analyzing trace with hash 2105705439, now seen corresponding path program 1 times [2018-10-23 18:40:49,490 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:40:49,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:40:49,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:40:49,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:40:49,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:40:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:40:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 146 proven. 65 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-23 18:40:50,094 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:40:50,095 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:40:50,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:40:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:40:50,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:40:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-23 18:40:50,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:40:50,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 18:40:50,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:40:50,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:40:50,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:40:50,474 INFO L87 Difference]: Start difference. First operand 31954 states and 37890 transitions. Second operand 5 states. [2018-10-23 18:41:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:41:23,153 INFO L93 Difference]: Finished difference Result 153113 states and 189793 transitions. [2018-10-23 18:41:23,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:41:23,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2018-10-23 18:41:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:41:23,383 INFO L225 Difference]: With dead ends: 153113 [2018-10-23 18:41:23,384 INFO L226 Difference]: Without dead ends: 111595 [2018-10-23 18:41:23,419 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:41:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111595 states. [2018-10-23 18:41:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111595 to 111502. [2018-10-23 18:41:24,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111502 states. [2018-10-23 18:41:24,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111502 states to 111502 states and 124329 transitions. [2018-10-23 18:41:24,650 INFO L78 Accepts]: Start accepts. Automaton has 111502 states and 124329 transitions. Word has length 382 [2018-10-23 18:41:24,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:41:24,651 INFO L481 AbstractCegarLoop]: Abstraction has 111502 states and 124329 transitions. [2018-10-23 18:41:24,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:41:24,652 INFO L276 IsEmpty]: Start isEmpty. Operand 111502 states and 124329 transitions. [2018-10-23 18:41:24,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2018-10-23 18:41:24,669 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:41:24,670 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 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 18:41:24,670 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:41:24,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:41:24,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1246358260, now seen corresponding path program 1 times [2018-10-23 18:41:24,671 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:41:24,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:41:24,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:41:24,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:41:24,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:41:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:41:25,712 WARN L179 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-23 18:41:26,150 WARN L179 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-23 18:41:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 413 proven. 4 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-10-23 18:41:27,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:41:27,215 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:41:27,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:41:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:41:27,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:41:27,835 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-10-23 18:41:27,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:41:27,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 18:41:27,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:41:27,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:41:27,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:41:27,878 INFO L87 Difference]: Start difference. First operand 111502 states and 124329 transitions. Second operand 5 states. Received shutdown request... [2018-10-23 18:41:49,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:41:49,798 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 18:41:49,804 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 18:41:49,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:41:49 BoogieIcfgContainer [2018-10-23 18:41:49,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 18:41:49,805 INFO L168 Benchmark]: Toolchain (without parser) took 235752.97 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -771.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-23 18:41:49,806 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-10-23 18:41:49,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3418.53 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: 404.3 MB). Peak memory consumption was 404.3 MB. Max. memory is 7.1 GB. [2018-10-23 18:41:49,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 1200.22 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.8 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2018-10-23 18:41:49,809 INFO L168 Benchmark]: Boogie Preprocessor took 727.55 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.9 MB). Peak memory consumption was 110.9 MB. Max. memory is 7.1 GB. [2018-10-23 18:41:49,810 INFO L168 Benchmark]: RCFGBuilder took 18302.65 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 287.8 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -398.2 MB). Peak memory consumption was 855.3 MB. Max. memory is 7.1 GB. [2018-10-23 18:41:49,811 INFO L168 Benchmark]: TraceAbstraction took 212096.29 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 265.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-23 18:41:49,816 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 3418.53 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: 404.3 MB). Peak memory consumption was 404.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1200.22 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.8 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 727.55 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.9 MB). Peak memory consumption was 110.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18302.65 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 287.8 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -398.2 MB). Peak memory consumption was 855.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212096.29 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 265.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (111502states) and FLOYD_HOARE automaton (currently 6 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (133919 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 212.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 198.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9956 SDtfs, 38568 SDslu, 3839 SDs, 0 SdLazy, 88528 SolverSat, 19881 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 171.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1370 GetRequests, 1336 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111502occurred 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: 3.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 23609 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 3378 NumberOfCodeBlocks, 3378 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3368 ConstructedInterpolants, 0 QuantifiedInterpolants, 6096887 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1652 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 1852/1925 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown