java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:46:25,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:46:25,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:46:26,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:46:26,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:46:26,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:46:26,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:46:26,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:46:26,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:46:26,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:46:26,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:46:26,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:46:26,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:46:26,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:46:26,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:46:26,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:46:26,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:46:26,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:46:26,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:46:26,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:46:26,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:46:26,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:46:26,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:46:26,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:46:26,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:46:26,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:46:26,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:46:26,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:46:26,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:46:26,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:46:26,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:46:26,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:46:26,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:46:26,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:46:26,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:46:26,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:46:26,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:46:26,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:46:26,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:46:26,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:46:26,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:46:26,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:46:26,051 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:46:26,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:46:26,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:46:26,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:46:26,053 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:46:26,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:46:26,054 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:46:26,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:46:26,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:46:26,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:46:26,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:46:26,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:46:26,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:46:26,055 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:46:26,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:46:26,055 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:46:26,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:46:26,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:46:26,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:46:26,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:46:26,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:46:26,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:46:26,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:46:26,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:46:26,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:46:26,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:46:26,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:46:26,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:46:26,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:46:26,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:46:26,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:46:26,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:46:26,371 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:46:26,371 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:46:26,372 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-10-13 19:46:26,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69a1f01f2/c3c66ee51f1a4d1ab45df77aede8bd58/FLAGfcf2425af [2019-10-13 19:46:26,980 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:46:26,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-10-13 19:46:26,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69a1f01f2/c3c66ee51f1a4d1ab45df77aede8bd58/FLAGfcf2425af [2019-10-13 19:46:27,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69a1f01f2/c3c66ee51f1a4d1ab45df77aede8bd58 [2019-10-13 19:46:27,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:46:27,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:46:27,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:27,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:46:27,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:46:27,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:27" (1/1) ... [2019-10-13 19:46:27,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6ee061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:27, skipping insertion in model container [2019-10-13 19:46:27,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:27" (1/1) ... [2019-10-13 19:46:27,291 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:46:27,371 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:46:27,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:27,906 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:46:28,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:28,082 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:46:28,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28 WrapperNode [2019-10-13 19:46:28,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:28,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:46:28,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:46:28,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:46:28,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... [2019-10-13 19:46:28,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... [2019-10-13 19:46:28,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... [2019-10-13 19:46:28,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... [2019-10-13 19:46:28,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... [2019-10-13 19:46:28,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... [2019-10-13 19:46:28,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... [2019-10-13 19:46:28,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:46:28,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:46:28,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:46:28,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:46:28,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-10-13 19:46:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:46:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:46:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:46:28,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:46:28,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:46:28,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-13 19:46:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:46:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:46:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:46:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:46:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:46:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-10-13 19:46:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-10-13 19:46:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-10-13 19:46:28,268 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:46:28,268 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:46:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:46:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:46:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:46:29,702 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:46:29,702 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:46:29,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:29 BoogieIcfgContainer [2019-10-13 19:46:29,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:46:29,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:46:29,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:46:29,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:46:29,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:46:27" (1/3) ... [2019-10-13 19:46:29,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31061b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:29, skipping insertion in model container [2019-10-13 19:46:29,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:28" (2/3) ... [2019-10-13 19:46:29,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31061b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:29, skipping insertion in model container [2019-10-13 19:46:29,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:29" (3/3) ... [2019-10-13 19:46:29,720 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-10-13 19:46:29,732 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:46:29,759 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:46:29,777 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:46:29,820 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:46:29,820 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:46:29,821 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:46:29,821 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:46:29,822 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:46:29,822 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:46:29,822 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:46:29,822 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:46:29,867 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states. [2019-10-13 19:46:29,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 19:46:29,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:29,889 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:29,892 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:29,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:29,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1155837260, now seen corresponding path program 1 times [2019-10-13 19:46:29,908 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:29,908 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489550443] [2019-10-13 19:46:29,909 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:29,909 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:29,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:30,814 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:30,881 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489550443] [2019-10-13 19:46:30,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:30,882 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:30,882 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866683489] [2019-10-13 19:46:30,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:30,887 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:30,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:30,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:30,902 INFO L87 Difference]: Start difference. First operand 336 states. Second operand 4 states. [2019-10-13 19:46:31,185 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-13 19:46:32,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:32,825 INFO L93 Difference]: Finished difference Result 647 states and 1119 transitions. [2019-10-13 19:46:32,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:32,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2019-10-13 19:46:32,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:32,848 INFO L225 Difference]: With dead ends: 647 [2019-10-13 19:46:32,848 INFO L226 Difference]: Without dead ends: 527 [2019-10-13 19:46:32,853 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:32,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-10-13 19:46:32,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2019-10-13 19:46:32,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-13 19:46:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 780 transitions. [2019-10-13 19:46:32,943 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 780 transitions. Word has length 156 [2019-10-13 19:46:32,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:32,946 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 780 transitions. [2019-10-13 19:46:32,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:32,946 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 780 transitions. [2019-10-13 19:46:32,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 19:46:32,957 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:32,957 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:32,957 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1353690447, now seen corresponding path program 1 times [2019-10-13 19:46:32,960 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:32,960 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735508026] [2019-10-13 19:46:32,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:32,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:32,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,592 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:33,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735508026] [2019-10-13 19:46:33,639 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:33,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:33,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645079213] [2019-10-13 19:46:33,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:33,642 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:33,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:33,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:33,643 INFO L87 Difference]: Start difference. First operand 525 states and 780 transitions. Second operand 5 states. [2019-10-13 19:46:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:35,956 INFO L93 Difference]: Finished difference Result 1532 states and 2273 transitions. [2019-10-13 19:46:35,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:35,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2019-10-13 19:46:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:35,962 INFO L225 Difference]: With dead ends: 1532 [2019-10-13 19:46:35,963 INFO L226 Difference]: Without dead ends: 1020 [2019-10-13 19:46:35,966 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:46:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2019-10-13 19:46:36,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1018. [2019-10-13 19:46:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2019-10-13 19:46:36,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1501 transitions. [2019-10-13 19:46:36,029 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1501 transitions. Word has length 156 [2019-10-13 19:46:36,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:36,029 INFO L462 AbstractCegarLoop]: Abstraction has 1018 states and 1501 transitions. [2019-10-13 19:46:36,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:46:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1501 transitions. [2019-10-13 19:46:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 19:46:36,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:36,034 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:36,034 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:36,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:36,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1552789903, now seen corresponding path program 1 times [2019-10-13 19:46:36,035 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:36,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84585504] [2019-10-13 19:46:36,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,345 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:36,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84585504] [2019-10-13 19:46:36,405 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:36,405 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:36,406 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709386278] [2019-10-13 19:46:36,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:36,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:36,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:36,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:36,408 INFO L87 Difference]: Start difference. First operand 1018 states and 1501 transitions. Second operand 4 states. [2019-10-13 19:46:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:39,028 INFO L93 Difference]: Finished difference Result 3008 states and 4433 transitions. [2019-10-13 19:46:39,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:46:39,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2019-10-13 19:46:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:39,042 INFO L225 Difference]: With dead ends: 3008 [2019-10-13 19:46:39,043 INFO L226 Difference]: Without dead ends: 2022 [2019-10-13 19:46:39,046 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:39,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2019-10-13 19:46:39,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1020. [2019-10-13 19:46:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2019-10-13 19:46:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1503 transitions. [2019-10-13 19:46:39,129 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1503 transitions. Word has length 157 [2019-10-13 19:46:39,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:39,129 INFO L462 AbstractCegarLoop]: Abstraction has 1020 states and 1503 transitions. [2019-10-13 19:46:39,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:39,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1503 transitions. [2019-10-13 19:46:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 19:46:39,135 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:39,135 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:39,136 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:39,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:39,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1516867775, now seen corresponding path program 1 times [2019-10-13 19:46:39,137 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:39,137 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240086588] [2019-10-13 19:46:39,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,470 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:39,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240086588] [2019-10-13 19:46:39,520 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:39,521 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:39,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171791943] [2019-10-13 19:46:39,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:39,522 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:39,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:39,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:39,523 INFO L87 Difference]: Start difference. First operand 1020 states and 1503 transitions. Second operand 4 states. [2019-10-13 19:46:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:41,901 INFO L93 Difference]: Finished difference Result 2789 states and 4120 transitions. [2019-10-13 19:46:41,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:46:41,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2019-10-13 19:46:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:41,911 INFO L225 Difference]: With dead ends: 2789 [2019-10-13 19:46:41,911 INFO L226 Difference]: Without dead ends: 1966 [2019-10-13 19:46:41,913 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:41,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2019-10-13 19:46:41,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1964. [2019-10-13 19:46:41,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1964 states. [2019-10-13 19:46:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2867 transitions. [2019-10-13 19:46:41,997 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2867 transitions. Word has length 158 [2019-10-13 19:46:41,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:41,998 INFO L462 AbstractCegarLoop]: Abstraction has 1964 states and 2867 transitions. [2019-10-13 19:46:41,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:41,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2867 transitions. [2019-10-13 19:46:42,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 19:46:42,003 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:42,003 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:42,003 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:42,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:42,004 INFO L82 PathProgramCache]: Analyzing trace with hash -2015367012, now seen corresponding path program 1 times [2019-10-13 19:46:42,004 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:42,005 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679984239] [2019-10-13 19:46:42,005 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:42,005 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:42,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:42,429 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:42,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679984239] [2019-10-13 19:46:42,503 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:42,503 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:42,503 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653398454] [2019-10-13 19:46:42,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:42,504 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:42,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:42,507 INFO L87 Difference]: Start difference. First operand 1964 states and 2867 transitions. Second operand 5 states. [2019-10-13 19:46:43,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:43,892 INFO L93 Difference]: Finished difference Result 3278 states and 4800 transitions. [2019-10-13 19:46:43,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:43,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2019-10-13 19:46:43,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:43,906 INFO L225 Difference]: With dead ends: 3278 [2019-10-13 19:46:43,907 INFO L226 Difference]: Without dead ends: 1499 [2019-10-13 19:46:43,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:46:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2019-10-13 19:46:43,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1499. [2019-10-13 19:46:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2019-10-13 19:46:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2182 transitions. [2019-10-13 19:46:43,967 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2182 transitions. Word has length 158 [2019-10-13 19:46:43,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:43,967 INFO L462 AbstractCegarLoop]: Abstraction has 1499 states and 2182 transitions. [2019-10-13 19:46:43,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:46:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2182 transitions. [2019-10-13 19:46:43,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 19:46:43,971 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:43,971 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:43,972 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:43,972 INFO L82 PathProgramCache]: Analyzing trace with hash -528962491, now seen corresponding path program 1 times [2019-10-13 19:46:43,972 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:43,972 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596834352] [2019-10-13 19:46:43,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:43,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:43,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,226 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:44,258 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596834352] [2019-10-13 19:46:44,258 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:44,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:44,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082301094] [2019-10-13 19:46:44,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:44,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:44,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:44,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:44,260 INFO L87 Difference]: Start difference. First operand 1499 states and 2182 transitions. Second operand 4 states. [2019-10-13 19:46:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:45,858 INFO L93 Difference]: Finished difference Result 3290 states and 4921 transitions. [2019-10-13 19:46:45,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:46:45,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2019-10-13 19:46:45,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:45,869 INFO L225 Difference]: With dead ends: 3290 [2019-10-13 19:46:45,869 INFO L226 Difference]: Without dead ends: 1977 [2019-10-13 19:46:45,872 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2019-10-13 19:46:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1933. [2019-10-13 19:46:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1933 states. [2019-10-13 19:46:45,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2888 transitions. [2019-10-13 19:46:45,951 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2888 transitions. Word has length 159 [2019-10-13 19:46:45,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:45,951 INFO L462 AbstractCegarLoop]: Abstraction has 1933 states and 2888 transitions. [2019-10-13 19:46:45,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2888 transitions. [2019-10-13 19:46:45,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 19:46:45,954 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:45,955 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:45,955 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:45,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:45,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1484207381, now seen corresponding path program 1 times [2019-10-13 19:46:45,956 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:45,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30821410] [2019-10-13 19:46:45,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:45,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:45,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:46,254 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:46,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30821410] [2019-10-13 19:46:46,291 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:46,291 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:46,291 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188823831] [2019-10-13 19:46:46,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:46,292 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:46,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:46,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:46,293 INFO L87 Difference]: Start difference. First operand 1933 states and 2888 transitions. Second operand 4 states. [2019-10-13 19:46:48,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:48,000 INFO L93 Difference]: Finished difference Result 4690 states and 7155 transitions. [2019-10-13 19:46:48,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:46:48,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 162 [2019-10-13 19:46:48,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:48,011 INFO L225 Difference]: With dead ends: 4690 [2019-10-13 19:46:48,011 INFO L226 Difference]: Without dead ends: 3027 [2019-10-13 19:46:48,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2019-10-13 19:46:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 2711. [2019-10-13 19:46:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2711 states. [2019-10-13 19:46:48,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 4151 transitions. [2019-10-13 19:46:48,138 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 4151 transitions. Word has length 162 [2019-10-13 19:46:48,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:48,139 INFO L462 AbstractCegarLoop]: Abstraction has 2711 states and 4151 transitions. [2019-10-13 19:46:48,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:48,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 4151 transitions. [2019-10-13 19:46:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 19:46:48,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:48,143 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:48,143 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:48,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:48,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2071220188, now seen corresponding path program 1 times [2019-10-13 19:46:48,144 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:48,144 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412074918] [2019-10-13 19:46:48,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:48,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:48,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,624 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:48,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412074918] [2019-10-13 19:46:48,715 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:48,715 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:46:48,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619430715] [2019-10-13 19:46:48,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:46:48,716 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:48,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:46:48,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:46:48,717 INFO L87 Difference]: Start difference. First operand 2711 states and 4151 transitions. Second operand 10 states. [2019-10-13 19:46:48,979 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:46:50,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:50,848 INFO L93 Difference]: Finished difference Result 9554 states and 14922 transitions. [2019-10-13 19:46:50,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:46:50,848 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2019-10-13 19:46:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:50,871 INFO L225 Difference]: With dead ends: 9554 [2019-10-13 19:46:50,872 INFO L226 Difference]: Without dead ends: 7023 [2019-10-13 19:46:50,877 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:46:50,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7023 states. [2019-10-13 19:46:51,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7023 to 5089. [2019-10-13 19:46:51,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5089 states. [2019-10-13 19:46:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 7829 transitions. [2019-10-13 19:46:51,141 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 7829 transitions. Word has length 162 [2019-10-13 19:46:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:51,142 INFO L462 AbstractCegarLoop]: Abstraction has 5089 states and 7829 transitions. [2019-10-13 19:46:51,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:46:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 7829 transitions. [2019-10-13 19:46:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 19:46:51,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:51,147 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:51,147 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:51,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:51,148 INFO L82 PathProgramCache]: Analyzing trace with hash 430958199, now seen corresponding path program 1 times [2019-10-13 19:46:51,148 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:51,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900607152] [2019-10-13 19:46:51,148 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:51,148 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:51,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:51,566 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:51,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900607152] [2019-10-13 19:46:51,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:51,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:51,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107007198] [2019-10-13 19:46:51,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:51,697 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:51,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:51,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:51,701 INFO L87 Difference]: Start difference. First operand 5089 states and 7829 transitions. Second operand 5 states. [2019-10-13 19:46:52,049 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-13 19:46:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:53,573 INFO L93 Difference]: Finished difference Result 13547 states and 21235 transitions. [2019-10-13 19:46:53,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:46:53,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2019-10-13 19:46:53,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:53,619 INFO L225 Difference]: With dead ends: 13547 [2019-10-13 19:46:53,619 INFO L226 Difference]: Without dead ends: 9797 [2019-10-13 19:46:53,626 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:46:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2019-10-13 19:46:54,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 9795. [2019-10-13 19:46:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9795 states. [2019-10-13 19:46:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 15103 transitions. [2019-10-13 19:46:54,179 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 15103 transitions. Word has length 162 [2019-10-13 19:46:54,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:54,180 INFO L462 AbstractCegarLoop]: Abstraction has 9795 states and 15103 transitions. [2019-10-13 19:46:54,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:46:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 15103 transitions. [2019-10-13 19:46:54,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 19:46:54,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:54,187 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:54,188 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:54,188 INFO L82 PathProgramCache]: Analyzing trace with hash 169281566, now seen corresponding path program 1 times [2019-10-13 19:46:54,188 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:54,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973034] [2019-10-13 19:46:54,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:54,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:54,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:54,636 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:54,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973034] [2019-10-13 19:46:54,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:54,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:54,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189962001] [2019-10-13 19:46:54,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:54,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:54,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:54,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:54,696 INFO L87 Difference]: Start difference. First operand 9795 states and 15103 transitions. Second operand 5 states. [2019-10-13 19:46:57,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:57,131 INFO L93 Difference]: Finished difference Result 25746 states and 39693 transitions. [2019-10-13 19:46:57,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:57,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2019-10-13 19:46:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:57,169 INFO L225 Difference]: With dead ends: 25746 [2019-10-13 19:46:57,169 INFO L226 Difference]: Without dead ends: 15974 [2019-10-13 19:46:57,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:46:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15974 states. [2019-10-13 19:46:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15974 to 15972. [2019-10-13 19:46:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15972 states. [2019-10-13 19:46:57,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15972 states to 15972 states and 24436 transitions. [2019-10-13 19:46:57,981 INFO L78 Accepts]: Start accepts. Automaton has 15972 states and 24436 transitions. Word has length 162 [2019-10-13 19:46:57,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:57,982 INFO L462 AbstractCegarLoop]: Abstraction has 15972 states and 24436 transitions. [2019-10-13 19:46:57,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:46:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 15972 states and 24436 transitions. [2019-10-13 19:46:57,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 19:46:57,990 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:57,991 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:46:57,991 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:57,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:57,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1075293888, now seen corresponding path program 1 times [2019-10-13 19:46:57,992 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:57,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592136766] [2019-10-13 19:46:57,992 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,992 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,253 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 19:46:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:58,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592136766] [2019-10-13 19:46:58,296 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:58,297 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:58,297 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147259834] [2019-10-13 19:46:58,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:58,298 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:58,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:58,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:58,298 INFO L87 Difference]: Start difference. First operand 15972 states and 24436 transitions. Second operand 4 states. [2019-10-13 19:47:01,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:01,865 INFO L93 Difference]: Finished difference Result 43438 states and 66412 transitions. [2019-10-13 19:47:01,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:47:01,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2019-10-13 19:47:01,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:01,924 INFO L225 Difference]: With dead ends: 43438 [2019-10-13 19:47:01,925 INFO L226 Difference]: Without dead ends: 27862 [2019-10-13 19:47:01,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:47:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27862 states.