/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:31:41,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:31:41,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:31:41,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:31:41,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:31:41,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:31:41,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:31:41,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:31:41,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:31:41,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:31:41,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:31:41,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:31:41,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:31:41,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:31:41,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:31:41,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:31:41,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:31:41,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:31:41,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:31:41,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:31:41,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:31:41,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:31:41,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:31:41,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:31:41,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:31:41,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:31:41,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:31:41,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:31:41,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:31:41,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:31:41,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:31:41,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:31:41,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:31:41,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:31:41,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:31:41,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:31:41,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:31:41,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:31:41,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:31:41,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:31:41,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:31:41,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 04:31:42,029 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:31:42,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:31:42,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:31:42,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:31:42,034 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:31:42,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:31:42,035 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:31:42,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:31:42,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:31:42,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:31:42,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:31:42,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:31:42,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:31:42,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:31:42,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:31:42,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:31:42,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:31:42,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:31:42,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:31:42,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:31:42,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:31:42,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:31:42,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:31:42,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:31:42,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:31:42,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:31:42,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:31:42,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:31:42,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:31:42,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:31:42,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:31:42,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:31:42,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:31:42,474 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:31:42,475 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:31:42,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2020-10-27 04:31:42,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc1c578e4/ee0455180d8c400db8947b9b290c88b5/FLAGf530d6c45 [2020-10-27 04:31:43,102 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:31:43,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2020-10-27 04:31:43,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc1c578e4/ee0455180d8c400db8947b9b290c88b5/FLAGf530d6c45 [2020-10-27 04:31:43,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc1c578e4/ee0455180d8c400db8947b9b290c88b5 [2020-10-27 04:31:43,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:31:43,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:31:43,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:31:43,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:31:43,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:31:43,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbef753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43, skipping insertion in model container [2020-10-27 04:31:43,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:31:43,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:31:43,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:31:43,758 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:31:43,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:31:43,860 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:31:43,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43 WrapperNode [2020-10-27 04:31:43,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:31:43,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:31:43,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:31:43,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:31:43,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... [2020-10-27 04:31:43,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:31:43,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:31:43,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:31:43,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:31:43,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 04:31:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:31:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:31:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:31:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:31:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:31:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:31:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:31:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:31:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:31:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:31:44,068 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:31:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:31:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:31:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:31:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:31:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:31:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:31:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:31:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:31:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:31:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:31:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:31:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:31:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:31:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:31:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:31:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:31:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:31:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:31:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:31:44,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:31:44,878 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:31:44,878 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:31:44,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:31:44 BoogieIcfgContainer [2020-10-27 04:31:44,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:31:44,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:31:44,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:31:44,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:31:44,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:31:43" (1/3) ... [2020-10-27 04:31:44,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef88e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:31:44, skipping insertion in model container [2020-10-27 04:31:44,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:31:43" (2/3) ... [2020-10-27 04:31:44,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef88e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:31:44, skipping insertion in model container [2020-10-27 04:31:44,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:31:44" (3/3) ... [2020-10-27 04:31:44,890 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2020-10-27 04:31:44,903 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:31:44,909 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:31:44,924 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:31:44,953 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:31:44,953 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:31:44,953 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:31:44,954 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:31:44,954 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:31:44,954 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:31:44,954 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:31:44,954 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:31:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2020-10-27 04:31:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-27 04:31:44,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:31:44,985 INFO L422 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] [2020-10-27 04:31:44,986 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:31:44,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:31:44,993 INFO L82 PathProgramCache]: Analyzing trace with hash 179197728, now seen corresponding path program 1 times [2020-10-27 04:31:45,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:31:45,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400279356] [2020-10-27 04:31:45,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:31:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:45,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:45,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:45,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:31:45,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:45,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-27 04:31:45,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:45,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 04:31:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:45,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 04:31:45,835 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:45,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:31:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:45,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:45,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:31:45,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:45,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:31:45,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:45,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:45,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:31:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:45,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:45,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:45,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:45,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:45,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:31:45,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:45,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:45,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:45,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:45,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 04:31:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:45,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:45,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:45,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:45,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:45,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:31:45,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:45,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:45,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:45,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:45,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:45,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:31:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:45,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:45,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:45,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:45,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:45,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:31:45,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:45,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:46,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 04:31:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:46,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:46,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:46,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:46,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:46,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:31:46,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:46,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 04:31:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:46,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:46,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:46,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:46,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:31:46,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:31:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:31:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:31:46,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400279356] [2020-10-27 04:31:46,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:31:46,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 04:31:46,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451147139] [2020-10-27 04:31:46,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:31:46,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:31:46,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:31:46,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:31:46,082 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 6 states. [2020-10-27 04:31:46,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:31:46,781 INFO L93 Difference]: Finished difference Result 190 states and 274 transitions. [2020-10-27 04:31:46,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:31:46,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-10-27 04:31:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:31:46,795 INFO L225 Difference]: With dead ends: 190 [2020-10-27 04:31:46,795 INFO L226 Difference]: Without dead ends: 105 [2020-10-27 04:31:46,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:31:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-27 04:31:46,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 102. [2020-10-27 04:31:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-27 04:31:46,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2020-10-27 04:31:46,856 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 50 [2020-10-27 04:31:46,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:31:46,856 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2020-10-27 04:31:46,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:31:46,857 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2020-10-27 04:31:46,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-27 04:31:46,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:31:46,860 INFO L422 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] [2020-10-27 04:31:46,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:31:46,860 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:31:46,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:31:46,861 INFO L82 PathProgramCache]: Analyzing trace with hash 838729250, now seen corresponding path program 1 times [2020-10-27 04:31:46,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:31:46,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247707309] [2020-10-27 04:31:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:31:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:47,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:47,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:31:47,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:47,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-27 04:31:47,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:31:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:31:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:31:47,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:47,505 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:47,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:31:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:47,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:47,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:47,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:31:47,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:31:47,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:47,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:47,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:31:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:47,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:47,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:47,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:47,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:47,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:31:47,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:47,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:47,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:47,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:31:47,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:47,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 04:31:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:47,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:47,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:47,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:31:47,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:47,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:47,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:47,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:47,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:31:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:47,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:47,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:47,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:47,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:31:47,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:47,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:47,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:47,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:47,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:47,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 04:31:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:47,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:47,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:47,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:47,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:47,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:31:47,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:47,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:47,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 04:31:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:47,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:47,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:47,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:47,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:47,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:31:47,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:47,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:47,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:31:47,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:47,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:31:47,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247707309] [2020-10-27 04:31:47,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:31:47,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:31:47,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376779802] [2020-10-27 04:31:47,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:31:47,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:31:47,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:31:47,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:31:47,691 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand 10 states. [2020-10-27 04:31:47,908 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:48,042 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:49,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:31:49,316 INFO L93 Difference]: Finished difference Result 191 states and 273 transitions. [2020-10-27 04:31:49,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 04:31:49,317 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-27 04:31:49,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:31:49,322 INFO L225 Difference]: With dead ends: 191 [2020-10-27 04:31:49,322 INFO L226 Difference]: Without dead ends: 114 [2020-10-27 04:31:49,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:31:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-27 04:31:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2020-10-27 04:31:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-27 04:31:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2020-10-27 04:31:49,367 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 50 [2020-10-27 04:31:49,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:31:49,367 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2020-10-27 04:31:49,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:31:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2020-10-27 04:31:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 04:31:49,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:31:49,373 INFO L422 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] [2020-10-27 04:31:49,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:31:49,374 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:31:49,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:31:49,374 INFO L82 PathProgramCache]: Analyzing trace with hash -2055696852, now seen corresponding path program 1 times [2020-10-27 04:31:49,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:31:49,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093247126] [2020-10-27 04:31:49,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:31:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:49,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:49,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:49,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:49,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:54,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:54,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-27 04:31:54,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:31:54,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:31:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:31:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 04:31:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 04:31:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:31:54,612 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:54,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:31:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:54,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:54,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:54,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:31:54,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:31:54,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:54,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:54,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:31:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:54,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:54,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:54,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:31:54,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:54,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:31:54,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:31:54,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:54,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:31:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:54,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:54,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:54,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:54,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:54,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:31:54,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:54,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:54,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:54,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 04:31:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:54,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:54,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:54,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:31:54,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:54,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 04:31:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:54,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:54,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:54,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:54,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:54,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:31:54,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:54,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 04:31:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:54,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:54,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:54,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:54,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:31:54,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:31:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:31:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:31:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:31:54,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093247126] [2020-10-27 04:31:54,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:31:54,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 04:31:54,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512883946] [2020-10-27 04:31:54,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:31:54,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:31:54,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:31:54,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:31:54,922 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 13 states. [2020-10-27 04:31:55,140 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:55,343 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:55,507 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:56,892 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:57,061 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:57,240 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:59,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:31:59,840 INFO L93 Difference]: Finished difference Result 638 states and 892 transitions. [2020-10-27 04:31:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-27 04:31:59,846 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2020-10-27 04:31:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:31:59,860 INFO L225 Difference]: With dead ends: 638 [2020-10-27 04:31:59,861 INFO L226 Difference]: Without dead ends: 567 [2020-10-27 04:31:59,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=567, Invalid=1883, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 04:31:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-10-27 04:31:59,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 528. [2020-10-27 04:31:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-27 04:31:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 749 transitions. [2020-10-27 04:31:59,964 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 749 transitions. Word has length 66 [2020-10-27 04:31:59,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:31:59,964 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 749 transitions. [2020-10-27 04:31:59,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:31:59,965 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 749 transitions. [2020-10-27 04:31:59,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 04:31:59,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:31:59,969 INFO L422 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] [2020-10-27 04:31:59,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:31:59,969 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:31:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:31:59,970 INFO L82 PathProgramCache]: Analyzing trace with hash -826170789, now seen corresponding path program 1 times [2020-10-27 04:31:59,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:31:59,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123964434] [2020-10-27 04:31:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:00,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:00,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:00,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:00,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:05,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:05,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 04:32:05,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:32:05,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 04:32:05,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:05,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:05,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 04:32:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:32:05,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:32:05,207 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:05,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:05,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:05,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:05,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:05,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:05,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:32:05,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:05,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:05,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:05,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:05,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:32:05,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:32:05,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:32:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:32:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:32:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:05,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:05,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:05,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:05,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:32:05,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:32:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:05,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 04:32:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:05,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:05,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:05,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:05,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:05,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:05,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:05,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 04:32:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:05,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:05,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:05,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:05,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:05,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:32:05,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 04:32:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:05,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:05,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:05,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:05,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:32:05,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:05,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123964434] [2020-10-27 04:32:05,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:05,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 04:32:05,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475657505] [2020-10-27 04:32:05,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:32:05,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:05,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:32:05,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:32:05,511 INFO L87 Difference]: Start difference. First operand 528 states and 749 transitions. Second operand 9 states. [2020-10-27 04:32:05,713 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:07,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:07,104 INFO L93 Difference]: Finished difference Result 1467 states and 2090 transitions. [2020-10-27 04:32:07,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:32:07,104 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-27 04:32:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:07,117 INFO L225 Difference]: With dead ends: 1467 [2020-10-27 04:32:07,117 INFO L226 Difference]: Without dead ends: 970 [2020-10-27 04:32:07,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:32:07,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-27 04:32:07,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 932. [2020-10-27 04:32:07,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-10-27 04:32:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1314 transitions. [2020-10-27 04:32:07,260 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1314 transitions. Word has length 67 [2020-10-27 04:32:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:07,261 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1314 transitions. [2020-10-27 04:32:07,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:32:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1314 transitions. [2020-10-27 04:32:07,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 04:32:07,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:07,264 INFO L422 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] [2020-10-27 04:32:07,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:32:07,264 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:07,265 INFO L82 PathProgramCache]: Analyzing trace with hash 673348680, now seen corresponding path program 1 times [2020-10-27 04:32:07,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:07,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540105956] [2020-10-27 04:32:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:07,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:07,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:07,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:10,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:10,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 04:32:10,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:32:10,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3647 [2020-10-27 04:32:10,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 04:32:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 04:32:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:11,112 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:11,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:11,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:11,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:11,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:11,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:32:11,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:11,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:11,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:11,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:11,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:32:11,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:11,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:32:11,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 04:32:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:11,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:32:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:11,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:11,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:11,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:32:11,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:11,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:11,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 04:32:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:11,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:11,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:11,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:11,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:32:11,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:32:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:11,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 04:32:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:11,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:11,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:11,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:11,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:32:11,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:11,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:11,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:11,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 04:32:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:11,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:11,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:11,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:11,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:32:11,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:11,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540105956] [2020-10-27 04:32:11,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:11,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 04:32:11,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989621007] [2020-10-27 04:32:11,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:32:11,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:11,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:32:11,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:32:11,338 INFO L87 Difference]: Start difference. First operand 932 states and 1314 transitions. Second operand 9 states. [2020-10-27 04:32:11,510 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:12,780 INFO L93 Difference]: Finished difference Result 2604 states and 3672 transitions. [2020-10-27 04:32:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:32:12,781 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-27 04:32:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:12,794 INFO L225 Difference]: With dead ends: 2604 [2020-10-27 04:32:12,795 INFO L226 Difference]: Without dead ends: 1703 [2020-10-27 04:32:12,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:32:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2020-10-27 04:32:12,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1644. [2020-10-27 04:32:12,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2020-10-27 04:32:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2289 transitions. [2020-10-27 04:32:12,950 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2289 transitions. Word has length 68 [2020-10-27 04:32:12,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:12,950 INFO L481 AbstractCegarLoop]: Abstraction has 1644 states and 2289 transitions. [2020-10-27 04:32:12,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:32:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2289 transitions. [2020-10-27 04:32:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 04:32:12,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:12,952 INFO L422 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] [2020-10-27 04:32:12,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:32:12,952 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:12,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:12,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1661552615, now seen corresponding path program 1 times [2020-10-27 04:32:12,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:12,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406929473] [2020-10-27 04:32:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:12,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:13,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:13,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:13,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:32:13,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:32:13,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 963 [2020-10-27 04:32:13,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:13,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:13,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 04:32:13,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 04:32:13,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:14,140 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:14,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:14,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:14,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:14,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:14,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:14,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:32:14,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:14,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:14,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:14,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:14,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:32:14,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:14,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:32:14,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:14,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:14,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:32:14,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:14,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:32:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:14,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:14,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:14,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:14,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:14,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:32:14,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:14,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 04:32:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:14,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:14,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:14,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:14,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:32:14,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:14,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:14,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:32:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:14,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:14,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:14,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:14,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:32:14,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:32:14,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:14,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 04:32:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:14,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:14,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:14,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:14,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:14,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:14,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:14,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406929473] [2020-10-27 04:32:14,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:14,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 04:32:14,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863044780] [2020-10-27 04:32:14,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:32:14,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:14,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:32:14,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:32:14,356 INFO L87 Difference]: Start difference. First operand 1644 states and 2289 transitions. Second operand 9 states. [2020-10-27 04:32:14,549 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:15,846 INFO L93 Difference]: Finished difference Result 4582 states and 6361 transitions. [2020-10-27 04:32:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:32:15,847 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-27 04:32:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:15,871 INFO L225 Difference]: With dead ends: 4582 [2020-10-27 04:32:15,871 INFO L226 Difference]: Without dead ends: 2969 [2020-10-27 04:32:15,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:32:15,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2020-10-27 04:32:16,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2882. [2020-10-27 04:32:16,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2882 states. [2020-10-27 04:32:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 3933 transitions. [2020-10-27 04:32:16,131 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 3933 transitions. Word has length 69 [2020-10-27 04:32:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:16,132 INFO L481 AbstractCegarLoop]: Abstraction has 2882 states and 3933 transitions. [2020-10-27 04:32:16,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:32:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 3933 transitions. [2020-10-27 04:32:16,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-27 04:32:16,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:16,135 INFO L422 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] [2020-10-27 04:32:16,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:32:16,135 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:16,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:16,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1418198284, now seen corresponding path program 1 times [2020-10-27 04:32:16,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:16,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194354617] [2020-10-27 04:32:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:16,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:16,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:16,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:16,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 04:32:16,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:32:16,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-27 04:32:16,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:16,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:16,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 04:32:16,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 04:32:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:17,050 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:17,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:17,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:17,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:17,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:17,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:17,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:32:17,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:17,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:17,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:17,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:17,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:17,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:17,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:17,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:17,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:32:17,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:17,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:32:17,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:17,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:17,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:17,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 04:32:17,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:17,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:32:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:17,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:17,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:17,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:17,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:17,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:32:17,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:32:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:17,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 04:32:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:17,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:17,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:17,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:17,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:32:17,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:17,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:32:17,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:17,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:17,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:17,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:32:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:17,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:17,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:17,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:17,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:32:17,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 04:32:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:32:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:17,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:32:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:17,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:17,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:17,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:17,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:32:17,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:17,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:17,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194354617] [2020-10-27 04:32:17,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:17,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 04:32:17,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336715026] [2020-10-27 04:32:17,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 04:32:17,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:17,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 04:32:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:32:17,300 INFO L87 Difference]: Start difference. First operand 2882 states and 3933 transitions. Second operand 12 states. [2020-10-27 04:32:17,518 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:32:17,720 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 04:32:18,064 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:32:18,473 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:32:18,647 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:32:18,807 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:32:19,483 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:32:19,643 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 04:32:19,811 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:32:19,981 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 04:32:20,170 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:32:20,342 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:32:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:25,310 INFO L93 Difference]: Finished difference Result 17957 states and 25541 transitions. [2020-10-27 04:32:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-27 04:32:25,311 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-10-27 04:32:25,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:25,418 INFO L225 Difference]: With dead ends: 17957 [2020-10-27 04:32:25,419 INFO L226 Difference]: Without dead ends: 15106 [2020-10-27 04:32:25,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2020-10-27 04:32:25,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15106 states. [2020-10-27 04:32:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15106 to 14890. [2020-10-27 04:32:26,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14890 states. [2020-10-27 04:32:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14890 states to 14890 states and 19433 transitions. [2020-10-27 04:32:26,981 INFO L78 Accepts]: Start accepts. Automaton has 14890 states and 19433 transitions. Word has length 70 [2020-10-27 04:32:26,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:26,982 INFO L481 AbstractCegarLoop]: Abstraction has 14890 states and 19433 transitions. [2020-10-27 04:32:26,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 04:32:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 14890 states and 19433 transitions. [2020-10-27 04:32:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 04:32:26,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:26,983 INFO L422 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] [2020-10-27 04:32:26,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:32:26,984 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:26,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:26,985 INFO L82 PathProgramCache]: Analyzing trace with hash -845945270, now seen corresponding path program 1 times [2020-10-27 04:32:26,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:26,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488633828] [2020-10-27 04:32:26,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:27,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:27,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 04:32:27,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-27 04:32:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:32:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-27 04:32:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:32:27,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:27,465 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:27,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:27,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:27,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:27,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:27,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:32:27,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:27,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:27,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:27,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:27,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:32:27,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:27,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:27,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:27,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:27,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:27,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:27,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:32:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:27,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:27,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:27,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:32:27,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:27,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:27,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:27,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:32:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:27,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:27,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:27,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 04:32:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:27,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:27,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:27,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:32:27,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:27,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:32:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:27,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:27,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:27,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:27,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:32:27,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:32:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:27,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:27,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488633828] [2020-10-27 04:32:27,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:27,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 04:32:27,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896960019] [2020-10-27 04:32:27,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 04:32:27,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:27,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 04:32:27,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:32:27,666 INFO L87 Difference]: Start difference. First operand 14890 states and 19433 transitions. Second operand 12 states. [2020-10-27 04:32:28,468 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:28,627 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:28,820 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:29,001 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:32:30,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:30,601 INFO L93 Difference]: Finished difference Result 18683 states and 25201 transitions. [2020-10-27 04:32:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:32:30,601 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-10-27 04:32:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:30,742 INFO L225 Difference]: With dead ends: 18683 [2020-10-27 04:32:30,742 INFO L226 Difference]: Without dead ends: 18680 [2020-10-27 04:32:30,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:32:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18680 states. [2020-10-27 04:32:32,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18680 to 16618. [2020-10-27 04:32:32,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16618 states. [2020-10-27 04:32:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16618 states to 16618 states and 21161 transitions. [2020-10-27 04:32:32,570 INFO L78 Accepts]: Start accepts. Automaton has 16618 states and 21161 transitions. Word has length 71 [2020-10-27 04:32:32,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:32,572 INFO L481 AbstractCegarLoop]: Abstraction has 16618 states and 21161 transitions. [2020-10-27 04:32:32,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 04:32:32,572 INFO L276 IsEmpty]: Start isEmpty. Operand 16618 states and 21161 transitions. [2020-10-27 04:32:32,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 04:32:32,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:32,580 INFO L422 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] [2020-10-27 04:32:32,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:32:32,581 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:32,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:32,581 INFO L82 PathProgramCache]: Analyzing trace with hash -243671259, now seen corresponding path program 1 times [2020-10-27 04:32:32,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:32,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75671442] [2020-10-27 04:32:32,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:32,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:32,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:32,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 04:32:32,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-27 04:32:32,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:32:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:32:32,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:33,052 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:33,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:33,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:33,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:33,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:33,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:32:33,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:33,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:33,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:33,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:33,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:32:33,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:32:33,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 04:32:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:33,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:32:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:33,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:33,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:33,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:32:33,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:33,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:32:33,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:33,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:33,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:33,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:32:33,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:33,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:32:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:33,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:33,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:33,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:33,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:33,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:32:33,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:33,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:33,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:33,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:33,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 04:32:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:33,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:33,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:32:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:33,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:32:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:33,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:33,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:33,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:33,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:33,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 04:32:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:32:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:33,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75671442] [2020-10-27 04:32:33,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:33,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 04:32:33,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138057022] [2020-10-27 04:32:33,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:32:33,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:33,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:32:33,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:32:33,289 INFO L87 Difference]: Start difference. First operand 16618 states and 21161 transitions. Second operand 9 states. [2020-10-27 04:32:33,458 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:34,511 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:37,238 INFO L93 Difference]: Finished difference Result 46529 states and 59941 transitions. [2020-10-27 04:32:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:32:37,239 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-27 04:32:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:37,373 INFO L225 Difference]: With dead ends: 46529 [2020-10-27 04:32:37,374 INFO L226 Difference]: Without dead ends: 29994 [2020-10-27 04:32:37,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:32:37,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29994 states. [2020-10-27 04:32:40,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29994 to 29566. [2020-10-27 04:32:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29566 states. [2020-10-27 04:32:40,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29566 states to 29566 states and 38089 transitions. [2020-10-27 04:32:40,229 INFO L78 Accepts]: Start accepts. Automaton has 29566 states and 38089 transitions. Word has length 72 [2020-10-27 04:32:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:40,229 INFO L481 AbstractCegarLoop]: Abstraction has 29566 states and 38089 transitions. [2020-10-27 04:32:40,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:32:40,230 INFO L276 IsEmpty]: Start isEmpty. Operand 29566 states and 38089 transitions. [2020-10-27 04:32:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:32:40,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:40,242 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:32:40,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:32:40,242 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:40,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:40,243 INFO L82 PathProgramCache]: Analyzing trace with hash 988427042, now seen corresponding path program 1 times [2020-10-27 04:32:40,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:40,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934500221] [2020-10-27 04:32:40,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:40,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 04:32:43,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:32:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2925 [2020-10-27 04:32:43,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:32:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:32:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:32:43,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,416 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:43,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:43,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:32:43,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:32:43,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:32:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:32:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:32:43,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 04:32:43,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:32:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:32:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,718 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-10-27 04:32:43,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:32:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:43,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:43,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:43,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 04:32:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:43,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:43,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:32:43,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:32:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:43,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:32:43,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:32:43,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:32:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:32:43,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:43,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:32:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:32:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:43,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:32:43,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:32:43,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:32:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:32:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:32:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:43,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:32:43,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:43,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:43,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:43,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 04:32:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:43,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:43,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:43,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:43,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:43,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:32:43,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:43,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:32:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 04:32:43,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934500221] [2020-10-27 04:32:43,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:32:43,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 04:32:43,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847943529] [2020-10-27 04:32:43,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:32:43,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:43,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:32:43,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:32:43,983 INFO L87 Difference]: Start difference. First operand 29566 states and 38089 transitions. Second operand 15 states. [2020-10-27 04:32:44,216 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:32:44,550 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:32:45,041 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-10-27 04:32:45,462 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:32:46,297 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:32:47,108 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-10-27 04:32:47,652 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:50,955 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-27 04:32:54,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:54,687 INFO L93 Difference]: Finished difference Result 113769 states and 147615 transitions. [2020-10-27 04:32:54,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-27 04:32:54,688 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-27 04:32:54,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:55,212 INFO L225 Difference]: With dead ends: 113769 [2020-10-27 04:32:55,212 INFO L226 Difference]: Without dead ends: 84286 [2020-10-27 04:32:55,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=526, Invalid=2230, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 04:32:55,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84286 states. [2020-10-27 04:33:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84286 to 77219. [2020-10-27 04:33:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77219 states. [2020-10-27 04:33:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77219 states to 77219 states and 100693 transitions. [2020-10-27 04:33:01,998 INFO L78 Accepts]: Start accepts. Automaton has 77219 states and 100693 transitions. Word has length 109 [2020-10-27 04:33:01,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:33:01,999 INFO L481 AbstractCegarLoop]: Abstraction has 77219 states and 100693 transitions. [2020-10-27 04:33:01,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:33:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand 77219 states and 100693 transitions. [2020-10-27 04:33:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:33:02,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:33:02,022 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:33:02,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:33:02,022 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:33:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:33:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash -922615516, now seen corresponding path program 1 times [2020-10-27 04:33:02,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:33:02,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817822159] [2020-10-27 04:33:02,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:33:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:02,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:02,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:04,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:04,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 04:33:04,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:33:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2506 [2020-10-27 04:33:04,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:33:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:33:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 04:33:04,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:04,804 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:33:04,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:33:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:04,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:04,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:04,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:33:04,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:04,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 04:33:04,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:33:04,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:04,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:33:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:04,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:04,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:04,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:33:04,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:04,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:33:04,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:33:04,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:04,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:33:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:04,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:04,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:04,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:33:04,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:04,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:33:04,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:33:04,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:33:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:05,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:33:05,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:33:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 04:33:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:05,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:33:05,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:33:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:33:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:05,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:33:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:33:05,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:33:05,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:33:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:33:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:05,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:33:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:33:05,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:33:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:33:05,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 04:33:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:05,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:33:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:33:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-27 04:33:05,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817822159] [2020-10-27 04:33:05,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:33:05,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 04:33:05,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564245519] [2020-10-27 04:33:05,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:33:05,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:33:05,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:33:05,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:33:05,186 INFO L87 Difference]: Start difference. First operand 77219 states and 100693 transitions. Second operand 13 states. [2020-10-27 04:33:05,602 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2020-10-27 04:33:05,799 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:06,023 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:33:06,565 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2020-10-27 04:33:09,306 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:33:09,483 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:33:09,984 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:33:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:33:17,664 INFO L93 Difference]: Finished difference Result 204552 states and 270349 transitions. [2020-10-27 04:33:17,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 04:33:17,665 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 04:33:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:33:18,299 INFO L225 Difference]: With dead ends: 204552 [2020-10-27 04:33:18,299 INFO L226 Difference]: Without dead ends: 127129 [2020-10-27 04:33:18,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=473, Invalid=1419, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 04:33:18,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127129 states. [2020-10-27 04:33:27,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127129 to 115433. [2020-10-27 04:33:27,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115433 states. [2020-10-27 04:33:27,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115433 states to 115433 states and 150224 transitions. [2020-10-27 04:33:27,742 INFO L78 Accepts]: Start accepts. Automaton has 115433 states and 150224 transitions. Word has length 109 [2020-10-27 04:33:27,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:33:27,742 INFO L481 AbstractCegarLoop]: Abstraction has 115433 states and 150224 transitions. [2020-10-27 04:33:27,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:33:27,742 INFO L276 IsEmpty]: Start isEmpty. Operand 115433 states and 150224 transitions. [2020-10-27 04:33:27,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:33:27,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:33:27,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:33:27,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 04:33:27,761 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:33:27,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:33:27,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1519522844, now seen corresponding path program 1 times [2020-10-27 04:33:27,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:33:27,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214470955] [2020-10-27 04:33:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:33:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:27,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:27,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:29,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:29,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 04:33:29,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:33:29,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2037 [2020-10-27 04:33:29,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:29,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:33:29,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:33:29,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 04:33:29,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,048 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:33:30,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:33:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:33:30,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:33:30,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:30,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:30,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:30,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:33:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:33:30,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:33:30,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:33:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:33:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:30,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:33:30,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:30,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:30,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:33:30,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 04:33:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:30,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:33:30,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:33:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:33:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:33:30,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 04:33:30,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:33:30,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:30,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:33:30,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,439 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2020-10-27 04:33:30,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:33:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:30,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:33:30,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:30,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:33:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:33:30,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:33:30,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:33:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:33:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:30,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:33:30,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:33:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:33:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:30,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:30,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:30,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:33:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:30,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:30,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:30,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:30,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:30,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 04:33:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:30,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:30,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:30,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:30,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:30,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:33:30,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:30,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:30,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:33:30,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:30,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 04:33:30,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214470955] [2020-10-27 04:33:30,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:33:30,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 04:33:30,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511697531] [2020-10-27 04:33:30,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:33:30,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:33:30,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:33:30,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:33:30,682 INFO L87 Difference]: Start difference. First operand 115433 states and 150224 transitions. Second operand 15 states. [2020-10-27 04:33:30,930 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:33:31,340 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:33:32,287 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 139 [2020-10-27 04:33:32,807 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:33:34,472 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 141 [2020-10-27 04:33:37,267 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-27 04:33:51,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:33:51,105 INFO L93 Difference]: Finished difference Result 358009 states and 464897 transitions. [2020-10-27 04:33:51,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 04:33:51,106 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-27 04:33:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:33:52,580 INFO L225 Difference]: With dead ends: 358009 [2020-10-27 04:33:52,581 INFO L226 Difference]: Without dead ends: 283312 [2020-10-27 04:33:53,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=364, Invalid=1442, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 04:33:53,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283312 states. [2020-10-27 04:34:12,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283312 to 275022. [2020-10-27 04:34:12,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275022 states. [2020-10-27 04:34:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275022 states to 275022 states and 357104 transitions. [2020-10-27 04:34:13,710 INFO L78 Accepts]: Start accepts. Automaton has 275022 states and 357104 transitions. Word has length 109 [2020-10-27 04:34:13,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:34:13,711 INFO L481 AbstractCegarLoop]: Abstraction has 275022 states and 357104 transitions. [2020-10-27 04:34:13,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:34:13,711 INFO L276 IsEmpty]: Start isEmpty. Operand 275022 states and 357104 transitions. [2020-10-27 04:34:13,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:34:13,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:34:13,736 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:34:13,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 04:34:13,736 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:34:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:34:13,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1514527202, now seen corresponding path program 1 times [2020-10-27 04:34:13,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:34:13,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441729264] [2020-10-27 04:34:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:34:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:13,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:13,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 04:34:16,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:34:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2543 [2020-10-27 04:34:16,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:34:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:34:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:34:16,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,517 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:34:16,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:34:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:34:16,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:34:16,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:34:16,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:34:16,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:34:16,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:34:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:34:16,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:34:16,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:34:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:34:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:34:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 04:34:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:34:16,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:34:16,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:34:16,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:34:16,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:34:16,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 04:34:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:34:16,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:34:16,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:34:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:34:16,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:34:16,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:34:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:34:16,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:34:16,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:34:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:34:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:34:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:34:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:34:16,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:34:16,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:34:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:34:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:34:16,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:34:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:34:16,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:34:16,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:34:16,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:34:16,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:34:16,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:34:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:34:16,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:34:16,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:34:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:34:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:34:16,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:34:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:34:16,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:34:16,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:34:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:34:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:34:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:34:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:34:16,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:34:16,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:34:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:34:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:34:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 04:34:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:34:16,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:34:16,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:34:16,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:34:16,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:34:16,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:34:16,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:34:16,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:34:16,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:34:16,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:34:16,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:34:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-27 04:34:16,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441729264] [2020-10-27 04:34:16,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:34:16,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 04:34:16,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525033266] [2020-10-27 04:34:16,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:34:16,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:34:16,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:34:16,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:34:16,863 INFO L87 Difference]: Start difference. First operand 275022 states and 357104 transitions. Second operand 13 states. [2020-10-27 04:34:17,229 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2020-10-27 04:34:17,412 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:34:17,650 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:34:18,092 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2020-10-27 04:34:21,627 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:34:21,804 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:34:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:34:41,988 INFO L93 Difference]: Finished difference Result 583836 states and 760730 transitions. [2020-10-27 04:34:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 04:34:41,995 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 04:34:41,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:34:43,952 INFO L225 Difference]: With dead ends: 583836 [2020-10-27 04:34:43,953 INFO L226 Difference]: Without dead ends: 308191 [2020-10-27 04:34:44,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=383, Invalid=1099, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 04:34:44,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308191 states.