/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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=NARROWEST --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 -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:33:40,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:33:40,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:33:40,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:33:40,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:33:40,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:33:40,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:33:40,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:33:40,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:33:40,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:33:40,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:33:40,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:33:40,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:33:40,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:33:40,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:33:40,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:33:40,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:33:40,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:33:40,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:33:40,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:33:40,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:33:40,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:33:40,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:33:40,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:33:40,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:33:40,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:33:40,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:33:40,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:33:40,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:33:40,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:33:40,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:33:40,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:33:40,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:33:40,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:33:40,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:33:40,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:33:40,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:33:40,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:33:40,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:33:40,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:33:40,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:33:40,999 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 [2020-10-13 12:33:41,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:33:41,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:33:41,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:33:41,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:33:41,043 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:33:41,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:33:41,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:33:41,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:33:41,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:33:41,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:33:41,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:33:41,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:33:41,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:33:41,045 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:33:41,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:33:41,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:33:41,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:33:41,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:33:41,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:33:41,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:33:41,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:33:41,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:33:41,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:33:41,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:33:41,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:33:41,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:33:41,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:33:41,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:33:41,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:33:41,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:33:41,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:33:41,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:33:41,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:33:41,356 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:33:41,357 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:33:41,357 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-13 12:33:41,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/514fc30dc/81e2a871f0184cb283c87d581c1f9109/FLAG11f6c3103 [2020-10-13 12:33:41,923 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:33:41,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-13 12:33:41,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/514fc30dc/81e2a871f0184cb283c87d581c1f9109/FLAG11f6c3103 [2020-10-13 12:33:42,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/514fc30dc/81e2a871f0184cb283c87d581c1f9109 [2020-10-13 12:33:42,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:33:42,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:33:42,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:33:42,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:33:42,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:33:42,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:42,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7225e1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42, skipping insertion in model container [2020-10-13 12:33:42,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:42,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:33:42,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:33:42,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:33:42,806 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:33:42,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:33:42,917 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:33:42,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42 WrapperNode [2020-10-13 12:33:42,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:33:42,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:33:42,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:33:42,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:33:42,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:42,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:42,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:42,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:42,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:42,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:43,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (1/1) ... [2020-10-13 12:33:43,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:33:43,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:33:43,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:33:43,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:33:43,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (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 [2020-10-13 12:33:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:33:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:33:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:33:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:33:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:33:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:33:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:33:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:33:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:33:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:33:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:33:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-13 12:33:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:33:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:33:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:33:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:33:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:33:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:33:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:33:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-13 12:33:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:33:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:33:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:33:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:33:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:33:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:33:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:33:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:33:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-13 12:33:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:33:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:33:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:33:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:33:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:33:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:33:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:33:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:33:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:33:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:33:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:33:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:33:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:33:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:33:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:33:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:33:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:33:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:33:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:33:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:33:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:33:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:33:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:33:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:33:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:33:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:33:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:33:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:33:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:33:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:33:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-13 12:33:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:33:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:33:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:33:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:33:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:33:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:33:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:33:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:33:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:33:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-13 12:33:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-13 12:33:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:33:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:33:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:33:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:33:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:33:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:33:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:33:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:33:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:33:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:33:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:33:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:33:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:33:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:33:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:33:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:33:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:33:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:33:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:33:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:33:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:33:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:33:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:33:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:33:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:33:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:33:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:33:44,102 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:33:44,103 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:33:44,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:44 BoogieIcfgContainer [2020-10-13 12:33:44,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:33:44,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:33:44,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:33:44,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:33:44,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:33:42" (1/3) ... [2020-10-13 12:33:44,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fccacec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:33:44, skipping insertion in model container [2020-10-13 12:33:44,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:42" (2/3) ... [2020-10-13 12:33:44,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fccacec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:33:44, skipping insertion in model container [2020-10-13 12:33:44,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:44" (3/3) ... [2020-10-13 12:33:44,116 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-10-13 12:33:44,126 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:33:44,133 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:33:44,147 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:33:44,170 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:33:44,170 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:33:44,171 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:33:44,171 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:33:44,171 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:33:44,171 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:33:44,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:33:44,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:33:44,193 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-10-13 12:33:44,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 12:33:44,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:44,204 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] [2020-10-13 12:33:44,205 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:44,211 INFO L82 PathProgramCache]: Analyzing trace with hash 616057763, now seen corresponding path program 1 times [2020-10-13 12:33:44,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:44,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110292206] [2020-10-13 12:33:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:44,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:44,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:45,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:45,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:46,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 12:33:49,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:33:49,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 12:33:49,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:33:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-13 12:33:49,842 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:49,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:49,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:49,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:49,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 12:33:49,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:49,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:49,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:49,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:49,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:49,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:49,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:49,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:49,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:49,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:49,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:49,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:49,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:49,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:49,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:49,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:33:49,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:49,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:49,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:49,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:49,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:49,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:33:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:49,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:49,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:49,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:49,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:33:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:49,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:49,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:49,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:49,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:49,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:49,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:49,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:33:49,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110292206] [2020-10-13 12:33:49,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:33:49,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:33:49,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171863972] [2020-10-13 12:33:49,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:33:49,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:49,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:33:49,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:33:49,985 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2020-10-13 12:33:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:51,263 INFO L93 Difference]: Finished difference Result 343 states and 450 transitions. [2020-10-13 12:33:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:33:51,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-13 12:33:51,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:51,280 INFO L225 Difference]: With dead ends: 343 [2020-10-13 12:33:51,281 INFO L226 Difference]: Without dead ends: 185 [2020-10-13 12:33:51,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:33:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-13 12:33:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2020-10-13 12:33:51,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-13 12:33:51,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2020-10-13 12:33:51,381 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2020-10-13 12:33:51,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:51,382 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2020-10-13 12:33:51,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:33:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2020-10-13 12:33:51,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 12:33:51,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:51,386 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] [2020-10-13 12:33:51,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:33:51,386 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:51,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:51,387 INFO L82 PathProgramCache]: Analyzing trace with hash -2016430514, now seen corresponding path program 1 times [2020-10-13 12:33:51,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:51,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842223557] [2020-10-13 12:33:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:51,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:52,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:53,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 12:33:56,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:33:56,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4966 [2020-10-13 12:33:56,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:33:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:33:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,646 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:56,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:56,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:56,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:33:56,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:56,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:56,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:56,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:56,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:56,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:56,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:56,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:56,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:56,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:56,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:56,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:56,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:56,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:56,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:33:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:56,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:56,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:56,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:33:56,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:56,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:33:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:56,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:56,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:56,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:56,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:56,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:56,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:33:56,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842223557] [2020-10-13 12:33:56,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:33:56,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:33:56,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546531036] [2020-10-13 12:33:56,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:33:56,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:56,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:33:56,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:33:56,771 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 4 states. [2020-10-13 12:33:57,164 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:58,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:58,071 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2020-10-13 12:33:58,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:33:58,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-13 12:33:58,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:58,076 INFO L225 Difference]: With dead ends: 270 [2020-10-13 12:33:58,076 INFO L226 Difference]: Without dead ends: 169 [2020-10-13 12:33:58,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:33:58,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-13 12:33:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2020-10-13 12:33:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-13 12:33:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2020-10-13 12:33:58,119 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2020-10-13 12:33:58,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:58,119 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2020-10-13 12:33:58,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:33:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2020-10-13 12:33:58,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:33:58,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:58,122 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] [2020-10-13 12:33:58,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:33:58,122 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:58,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1603631393, now seen corresponding path program 1 times [2020-10-13 12:33:58,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:58,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384350965] [2020-10-13 12:33:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:58,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:58,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:58,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:58,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:34:01,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:34:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3001 [2020-10-13 12:34:01,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:34:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 12:34:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:34:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,406 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:34:01,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:34:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:01,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:01,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:01,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:34:01,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:01,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:01,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:01,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:34:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:01,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:01,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:34:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:01,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:01,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:01,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:34:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:01,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:01,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:01,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:01,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:34:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:01,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:01,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:01,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:01,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:34:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:01,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:01,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:01,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:01,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:01,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:34:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:01,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:01,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:01,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:01,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:34:01,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:01,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:34:01,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384350965] [2020-10-13 12:34:01,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:34:01,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:34:01,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223992871] [2020-10-13 12:34:01,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:34:01,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:34:01,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:34:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:34:01,509 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 7 states. [2020-10-13 12:34:01,860 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:02,657 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:34:02,902 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:34:03,166 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:34:03,724 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:03,979 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:34:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:34:04,733 INFO L93 Difference]: Finished difference Result 353 states and 455 transitions. [2020-10-13 12:34:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:34:04,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-13 12:34:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:34:04,738 INFO L225 Difference]: With dead ends: 353 [2020-10-13 12:34:04,738 INFO L226 Difference]: Without dead ends: 237 [2020-10-13 12:34:04,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 12:34:04,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-13 12:34:04,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 215. [2020-10-13 12:34:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-13 12:34:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 262 transitions. [2020-10-13 12:34:04,808 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 262 transitions. Word has length 51 [2020-10-13 12:34:04,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:34:04,808 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 262 transitions. [2020-10-13 12:34:04,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:34:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 262 transitions. [2020-10-13 12:34:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 12:34:04,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:34:04,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:34:04,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:34:04,812 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:34:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:34:04,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1036169484, now seen corresponding path program 1 times [2020-10-13 12:34:04,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:34:04,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142988229] [2020-10-13 12:34:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:34:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:04,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:04,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 12:34:07,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:34:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2240 [2020-10-13 12:34:07,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:34:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 12:34:07,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:34:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:34:07,310 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:34:07,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:34:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:07,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:34:07,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:07,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:34:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:07,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:07,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:34:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:07,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:07,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:34:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:07,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:07,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:07,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:34:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:07,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:07,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:34:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 12:34:07,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:34:07,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:34:07,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:34:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:34:07,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:34:07,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:34:07,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:34:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 12:34:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:34:07,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:34:07,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:34:07,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:34:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:34:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:34:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:34:07,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:34:07,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:34:07,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:34:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:34:07,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:07,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:34:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:07,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:07,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:07,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 12:34:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:07,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:07,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 12:34:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:07,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:07,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:07,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:07,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:07,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:07,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:34:07,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142988229] [2020-10-13 12:34:07,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:34:07,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:34:07,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154760822] [2020-10-13 12:34:07,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:34:07,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:34:07,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:34:07,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:34:07,533 INFO L87 Difference]: Start difference. First operand 215 states and 262 transitions. Second operand 8 states. [2020-10-13 12:34:08,522 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:08,742 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:34:08,980 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:34:09,214 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:10,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:34:10,016 INFO L93 Difference]: Finished difference Result 450 states and 578 transitions. [2020-10-13 12:34:10,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:34:10,017 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-13 12:34:10,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:34:10,021 INFO L225 Difference]: With dead ends: 450 [2020-10-13 12:34:10,021 INFO L226 Difference]: Without dead ends: 259 [2020-10-13 12:34:10,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:34:10,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-13 12:34:10,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 223. [2020-10-13 12:34:10,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-13 12:34:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 270 transitions. [2020-10-13 12:34:10,067 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 270 transitions. Word has length 84 [2020-10-13 12:34:10,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:34:10,067 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 270 transitions. [2020-10-13 12:34:10,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:34:10,067 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 270 transitions. [2020-10-13 12:34:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 12:34:10,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:34:10,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:34:10,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:34:10,070 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:34:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:34:10,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1310929098, now seen corresponding path program 1 times [2020-10-13 12:34:10,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:34:10,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614118385] [2020-10-13 12:34:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:34:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:10,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:11,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:11,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 12:34:11,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:34:11,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1813 [2020-10-13 12:34:11,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:11,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 12:34:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:11,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:34:12,143 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:34:12,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:34:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:12,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:34:12,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:34:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:12,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:12,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:12,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:34:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:12,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:12,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:34:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:12,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:12,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:34:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:12,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:12,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:34:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 12:34:12,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:34:12,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 12:34:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:12,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:34:12,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:34:12,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 12:34:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:34:12,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:34:12,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:34:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:12,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:34:12,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:34:12,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:34:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:12,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:34:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:34:12,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:12,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:34:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:34:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:12,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:12,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 12:34:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:12,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 12:34:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:12,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:12,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:12,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:12,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:34:12,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614118385] [2020-10-13 12:34:12,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:34:12,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:34:12,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263864854] [2020-10-13 12:34:12,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:34:12,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:34:12,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:34:12,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:34:12,382 INFO L87 Difference]: Start difference. First operand 223 states and 270 transitions. Second operand 7 states. [2020-10-13 12:34:13,205 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:13,434 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:13,665 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:34:14,438 INFO L93 Difference]: Finished difference Result 465 states and 606 transitions. [2020-10-13 12:34:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:34:14,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-13 12:34:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:34:14,442 INFO L225 Difference]: With dead ends: 465 [2020-10-13 12:34:14,442 INFO L226 Difference]: Without dead ends: 266 [2020-10-13 12:34:14,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:34:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-13 12:34:14,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-10-13 12:34:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-13 12:34:14,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 274 transitions. [2020-10-13 12:34:14,488 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 274 transitions. Word has length 84 [2020-10-13 12:34:14,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:34:14,489 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 274 transitions. [2020-10-13 12:34:14,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:34:14,489 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 274 transitions. [2020-10-13 12:34:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 12:34:14,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:34:14,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:34:14,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:34:14,491 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:34:14,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:34:14,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1033737943, now seen corresponding path program 1 times [2020-10-13 12:34:14,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:34:14,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719135255] [2020-10-13 12:34:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:34:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:14,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:14,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 12:34:16,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:34:16,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1555 [2020-10-13 12:34:16,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:34:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 12:34:16,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,275 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:34:16,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:34:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:16,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 12:34:16,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:34:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:34:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:16,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:16,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:34:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:34:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:16,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:16,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:34:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:34:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:16,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:16,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:34:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:16,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:16,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:34:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:34:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 12:34:16,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:34:16,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 12:34:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:34:16,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:34:16,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:34:16,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:34:16,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:34:16,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:34:16,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:34:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:34:16,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:34:16,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:34:16,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:34:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:34:16,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:16,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:34:16,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:34:16,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:34:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:16,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:16,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:16,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:16,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:16,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 12:34:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:16,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:16,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:16,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:16,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:16,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 12:34:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:16,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:16,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:16,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:16,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:16,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:34:16,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719135255] [2020-10-13 12:34:16,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:34:16,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 12:34:16,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358660337] [2020-10-13 12:34:16,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:34:16,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:34:16,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:34:16,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:34:16,508 INFO L87 Difference]: Start difference. First operand 227 states and 274 transitions. Second operand 6 states. [2020-10-13 12:34:16,791 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:34:17,231 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:34:19,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:34:19,081 INFO L93 Difference]: Finished difference Result 659 states and 856 transitions. [2020-10-13 12:34:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:34:19,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-10-13 12:34:19,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:34:19,085 INFO L225 Difference]: With dead ends: 659 [2020-10-13 12:34:19,085 INFO L226 Difference]: Without dead ends: 456 [2020-10-13 12:34:19,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:34:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-13 12:34:19,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 424. [2020-10-13 12:34:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-13 12:34:19,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 520 transitions. [2020-10-13 12:34:19,172 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 520 transitions. Word has length 84 [2020-10-13 12:34:19,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:34:19,173 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 520 transitions. [2020-10-13 12:34:19,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:34:19,173 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 520 transitions. [2020-10-13 12:34:19,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 12:34:19,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:34:19,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:34:19,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:34:19,175 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:34:19,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:34:19,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1363194525, now seen corresponding path program 1 times [2020-10-13 12:34:19,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:34:19,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51257898] [2020-10-13 12:34:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:34:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:19,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:19,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 12:34:19,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:19,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 473 [2020-10-13 12:34:19,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 12:34:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 12:34:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:19,910 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:34:19,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:34:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:19,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:19,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:19,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:19,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:34:19,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:19,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:34:19,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:34:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:19,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:19,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:19,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:19,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:19,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:19,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:34:19,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:19,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:34:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:19,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:19,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:19,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:19,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:19,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:19,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:34:19,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:19,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:34:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:19,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:19,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:19,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:19,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:19,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:19,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:19,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:19,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:19,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:19,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:34:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:19,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:19,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:34:20,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:20,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:34:20,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:34:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:20,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:20,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:20,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:20,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:34:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 12:34:20,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:34:20,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:34:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:34:20,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:34:20,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:34:20,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:20,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:34:20,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:34:20,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:20,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:20,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:34:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:34:20,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:20,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:20,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:34:20,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:34:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:34:20,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:20,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:34:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:20,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:34:20,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:20,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 12:34:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:20,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:34:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:34:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:34:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:34:20,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 12:34:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:34:20,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:34:20,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:34:20,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:34:20,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:34:20,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:34:20,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:34:20,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:34:20,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:34:20,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:34:20,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:34:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:34:20,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51257898] [2020-10-13 12:34:20,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:34:20,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 12:34:20,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296769343] [2020-10-13 12:34:20,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 12:34:20,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:34:20,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 12:34:20,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:34:20,144 INFO L87 Difference]: Start difference. First operand 424 states and 520 transitions. Second operand 9 states. [2020-10-13 12:34:20,476 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:34:21,100 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:34:21,366 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:34:21,629 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:34:21,881 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:34:22,194 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:34:24,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:34:24,101 INFO L93 Difference]: Finished difference Result 1258 states and 1632 transitions. [2020-10-13 12:34:24,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:34:24,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-13 12:34:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:34:24,110 INFO L225 Difference]: With dead ends: 1258 [2020-10-13 12:34:24,110 INFO L226 Difference]: Without dead ends: 858 [2020-10-13 12:34:24,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-13 12:34:24,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-10-13 12:34:24,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 803. [2020-10-13 12:34:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-10-13 12:34:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 995 transitions. [2020-10-13 12:34:24,305 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 995 transitions. Word has length 88 [2020-10-13 12:34:24,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:34:24,307 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 995 transitions. [2020-10-13 12:34:24,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 12:34:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 995 transitions. [2020-10-13 12:34:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 12:34:24,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:34:24,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:34:24,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:34:24,311 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:34:24,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:34:24,312 INFO L82 PathProgramCache]: Analyzing trace with hash 745790239, now seen corresponding path program 1 times [2020-10-13 12:34:24,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:34:24,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022171828] [2020-10-13 12:34:24,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:34:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:34:24,343 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:34:24,344 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:34:24,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:34:24,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:34:24 BoogieIcfgContainer [2020-10-13 12:34:24,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:34:24,392 INFO L168 Benchmark]: Toolchain (without parser) took 42077.46 ms. Allocated memory was 146.3 MB in the beginning and 815.3 MB in the end (delta: 669.0 MB). Free memory was 100.8 MB in the beginning and 362.4 MB in the end (delta: -261.6 MB). Peak memory consumption was 407.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:34:24,393 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:34:24,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.85 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 100.6 MB in the beginning and 169.0 MB in the end (delta: -68.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:34:24,399 INFO L168 Benchmark]: Boogie Preprocessor took 90.54 ms. Allocated memory is still 201.9 MB. Free memory was 169.0 MB in the beginning and 164.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:34:24,400 INFO L168 Benchmark]: RCFGBuilder took 1098.88 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 193.6 MB in the end (delta: -28.8 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:34:24,406 INFO L168 Benchmark]: TraceAbstraction took 40278.18 ms. Allocated memory was 234.9 MB in the beginning and 815.3 MB in the end (delta: 580.4 MB). Free memory was 192.2 MB in the beginning and 362.4 MB in the end (delta: -170.2 MB). Peak memory consumption was 410.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:34:24,412 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 604.85 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 100.6 MB in the beginning and 169.0 MB in the end (delta: -68.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.54 ms. Allocated memory is still 201.9 MB. Free memory was 169.0 MB in the beginning and 164.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1098.88 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 193.6 MB in the end (delta: -28.8 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40278.18 ms. Allocated memory was 234.9 MB in the beginning and 815.3 MB in the end (delta: 580.4 MB). Free memory was 192.2 MB in the beginning and 362.4 MB in the end (delta: -170.2 MB). Peak memory consumption was 410.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L584] int retValue_acc ; [L585] int tmp ; [L589] FCALL select_helpers() [L590] FCALL select_features() [L591] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L591] RET, EXPR valid_product() [L591] tmp = valid_product() [L593] COND TRUE \read(tmp) [L595] FCALL setup() [L596] CALL runTest() [L578] CALL test() [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] splverifierCounter = 0 [L93] COND TRUE 1 [L95] COND TRUE splverifierCounter < 4 [L101] tmp = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp) [L105] CALL waterRise() [L417] COND TRUE waterLevel < 2 [L418] waterLevel = waterLevel + 1 [L105] RET waterRise() [L111] tmp___0 = __VERIFIER_nondet_int() [L113] COND TRUE \read(tmp___0) [L115] CALL changeMethaneLevel() [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] methaneLevelCritical = 1 [L115] RET changeMethaneLevel() [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) [L138] CALL timeShift() [L167] COND FALSE !(\read(pumpRunning)) [L174] COND TRUE \read(systemActive) [L176] CALL processEnvironment() [L248] int tmp ; [L251] COND FALSE !(\read(pumpRunning)) [L266] CALL processEnvironment__wrappee__lowWaterSensor() [L222] int tmp ; [L225] COND FALSE !(\read(pumpRunning)) [L240] CALL processEnvironment__wrappee__highWaterSensor() [L196] int tmp ; [L199] COND TRUE ! pumpRunning [L201] CALL, EXPR isHighWaterLevel() [L345] int retValue_acc ; [L346] int tmp ; [L347] int tmp___0 ; [L351] CALL, EXPR isHighWaterSensorDry() [L479] int retValue_acc ; [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] return (retValue_acc); [L351] RET, EXPR isHighWaterSensorDry() [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] tmp___0 = 1 [L358] retValue_acc = tmp___0 [L359] return (retValue_acc); [L201] RET, EXPR isHighWaterLevel() [L201] tmp = isHighWaterLevel() [L203] COND TRUE \read(tmp) [L205] CALL activatePump() [L276] pumpRunning = 1 [L205] RET activatePump() [L240] RET processEnvironment__wrappee__highWaterSensor() [L266] RET processEnvironment__wrappee__lowWaterSensor() [L176] RET processEnvironment() [L182] CALL __utac_acc__Specification1_spec__1() [L608] int tmp ; [L609] int tmp___0 ; [L613] CALL, EXPR isMethaneLevelCritical() [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] return (retValue_acc); [L613] RET, EXPR isMethaneLevelCritical() [L613] tmp = isMethaneLevelCritical() [L615] COND TRUE \read(tmp) [L617] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L617] RET, EXPR isPumpRunning() [L617] tmp___0 = isPumpRunning() [L619] COND TRUE \read(tmp___0) [L621] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 975 SDtfs, 1352 SDslu, 876 SDs, 0 SdLazy, 3826 SolverSat, 806 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 166 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=803occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 249 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 576 NumberOfCodeBlocks, 576 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 143054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...