/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 SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:27:58,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:27:58,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:27:58,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:27:58,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:27:58,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:27:58,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:27:58,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:27:58,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:27:58,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:27:58,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:27:58,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:27:58,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:27:58,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:27:58,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:27:58,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:27:58,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:27:58,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:27:58,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:27:58,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:27:58,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:27:58,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:27:58,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:27:58,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:27:58,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:27:58,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:27:58,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:27:58,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:27:58,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:27:58,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:27:58,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:27:58,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:27:58,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:27:58,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:27:58,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:27:58,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:27:58,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:27:58,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:27:58,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:27:58,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:27:58,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:27:58,452 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 [2020-09-25 06:27:58,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:27:58,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:27:58,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:27:58,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:27:58,478 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:27:58,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:27:58,479 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:27:58,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:27:58,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:27:58,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:27:58,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:27:58,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:27:58,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:27:58,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:27:58,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:27:58,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:27:58,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:27:58,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:27:58,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:27:58,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:27:58,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:27:58,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:27:58,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:27:58,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:27:58,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:27:58,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:27:58,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:27:58,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:27:58,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:27:58,483 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 -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:27:58,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:27:58,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:27:58,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:27:58,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:27:58,983 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:27:58,985 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 06:27:59,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0651a29d9/0dce0d8936274bbe80fc561f2c80bd82/FLAG837671e1e [2020-09-25 06:27:59,757 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:27:59,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 06:27:59,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0651a29d9/0dce0d8936274bbe80fc561f2c80bd82/FLAG837671e1e [2020-09-25 06:27:59,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0651a29d9/0dce0d8936274bbe80fc561f2c80bd82 [2020-09-25 06:27:59,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:27:59,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:27:59,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:59,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:27:59,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:27:59,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:59" (1/1) ... [2020-09-25 06:27:59,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed0b866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:59, skipping insertion in model container [2020-09-25 06:27:59,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:59" (1/1) ... [2020-09-25 06:27:59,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:28:00,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:28:00,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:00,608 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:28:00,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:00,795 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:28:00,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00 WrapperNode [2020-09-25 06:28:00,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:28:00,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:28:00,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:28:00,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:28:00,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ... [2020-09-25 06:28:00,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ... [2020-09-25 06:28:00,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ... [2020-09-25 06:28:00,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ... [2020-09-25 06:28:00,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ... [2020-09-25 06:28:00,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ... [2020-09-25 06:28:00,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ... [2020-09-25 06:28:00,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:28:00,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:28:00,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:28:00,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:28:00,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (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 [2020-09-25 06:28:00,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:28:00,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:28:00,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:00,998 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:28:00,998 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:28:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:28:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:28:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:28:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:28:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:28:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:28:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:28:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:28:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:28:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:28:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:28:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:28:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:28:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:28:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:28:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:28:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:28:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:28:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:28:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:28:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:28:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:28:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:28:01,005 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:28:01,005 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:28:01,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:28:01,005 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:28:01,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:28:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:28:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:28:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:28:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:28:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:28:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:28:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:28:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:28:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:28:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:28:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:28:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:28:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:28:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:28:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:28:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:28:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:28:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:28:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:28:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:28:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:28:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:28:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:28:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:28:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:28:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:28:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:28:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:28:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:28:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:28:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:28:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:28:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:28:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:28:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:28:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:28:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:28:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:28:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:28:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:28:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:28:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:28:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:28:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:28:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:28:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:28:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:28:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:28:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:28:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:28:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:28:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:28:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:28:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:28:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:28:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:28:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:28:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:28:02,425 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:28:02,425 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:28:02,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:02 BoogieIcfgContainer [2020-09-25 06:28:02,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:28:02,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:28:02,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:28:02,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:28:02,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:27:59" (1/3) ... [2020-09-25 06:28:02,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5538a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:02, skipping insertion in model container [2020-09-25 06:28:02,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (2/3) ... [2020-09-25 06:28:02,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5538a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:02, skipping insertion in model container [2020-09-25 06:28:02,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:02" (3/3) ... [2020-09-25 06:28:02,443 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2020-09-25 06:28:02,455 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:28:02,467 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:28:02,488 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:28:02,521 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:28:02,521 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:28:02,521 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:28:02,521 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:28:02,522 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:28:02,522 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:28:02,522 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:28:02,522 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:28:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 06:28:02,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:28:02,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:02,571 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:02,572 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:02,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:02,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1964738656, now seen corresponding path program 1 times [2020-09-25 06:28:02,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:02,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386492473] [2020-09-25 06:28:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:03,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:03,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:07,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:07,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:28:07,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:07,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 06:28:07,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:07,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:07,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:28:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 06:28:08,533 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:08,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:08,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 06:28:08,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:08,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:08,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:08,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:08,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:08,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:28:08,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:08,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:08,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:28:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:08,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:08,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:28:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:08,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:08,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:08,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386492473] [2020-09-25 06:28:08,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:08,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:28:08,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726733842] [2020-09-25 06:28:08,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:28:08,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:08,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:28:08,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:28:08,866 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-25 06:28:10,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:10,436 INFO L93 Difference]: Finished difference Result 512 states and 609 transitions. [2020-09-25 06:28:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:28:10,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:28:10,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:10,466 INFO L225 Difference]: With dead ends: 512 [2020-09-25 06:28:10,466 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 06:28:10,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:28:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 06:28:10,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-09-25 06:28:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 06:28:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2020-09-25 06:28:10,592 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 142 [2020-09-25 06:28:10,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:10,593 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2020-09-25 06:28:10,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:28:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2020-09-25 06:28:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:28:10,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:10,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:10,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:28:10,599 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:10,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:10,599 INFO L82 PathProgramCache]: Analyzing trace with hash -760083785, now seen corresponding path program 1 times [2020-09-25 06:28:10,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:10,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444630219] [2020-09-25 06:28:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:10,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:10,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:12,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:12,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:28:15,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 06:28:15,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:28:15,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:28:15,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,046 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:16,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:16,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 06:28:16,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:16,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:16,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:16,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:16,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:16,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:16,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:16,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:16,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:16,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:28:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:16,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:16,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:28:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:16,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:16,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444630219] [2020-09-25 06:28:16,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:16,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:28:16,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995206630] [2020-09-25 06:28:16,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:28:16,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:16,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:28:16,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:28:16,352 INFO L87 Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 4 states. [2020-09-25 06:28:17,092 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:18,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:18,186 INFO L93 Difference]: Finished difference Result 419 states and 472 transitions. [2020-09-25 06:28:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:28:18,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:28:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:18,191 INFO L225 Difference]: With dead ends: 419 [2020-09-25 06:28:18,191 INFO L226 Difference]: Without dead ends: 298 [2020-09-25 06:28:18,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:28:18,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-25 06:28:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-09-25 06:28:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 06:28:18,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-09-25 06:28:18,244 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-09-25 06:28:18,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:18,245 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-09-25 06:28:18,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:28:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-09-25 06:28:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 06:28:18,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:18,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:18,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:28:18,248 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:18,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:18,249 INFO L82 PathProgramCache]: Analyzing trace with hash -815473591, now seen corresponding path program 1 times [2020-09-25 06:28:18,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:18,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025510523] [2020-09-25 06:28:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:18,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:18,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:20,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:28:23,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:23,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 06:28:23,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:28:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:28:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:23,711 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:23,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:23,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 06:28:23,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:23,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:23,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:23,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:23,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:23,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:23,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:23,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:23,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:23,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:23,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:23,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:23,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:23,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:23,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:28:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:23,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:28:23,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:28:23,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:28:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:23,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:28:23,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:23,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:23,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:23,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:28:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:23,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:23,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:23,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:23,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:24,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025510523] [2020-09-25 06:28:24,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:24,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:28:24,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756272727] [2020-09-25 06:28:24,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:28:24,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:24,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:28:24,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:28:24,024 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 5 states. [2020-09-25 06:28:24,622 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:26,596 INFO L93 Difference]: Finished difference Result 633 states and 733 transitions. [2020-09-25 06:28:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:28:26,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 06:28:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:26,601 INFO L225 Difference]: With dead ends: 633 [2020-09-25 06:28:26,602 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 06:28:26,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:28:26,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 06:28:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 402. [2020-09-25 06:28:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 06:28:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 445 transitions. [2020-09-25 06:28:26,677 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 445 transitions. Word has length 156 [2020-09-25 06:28:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:26,678 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 445 transitions. [2020-09-25 06:28:26,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:28:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 445 transitions. [2020-09-25 06:28:26,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:28:26,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:26,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:26,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:28:26,682 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:26,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:26,682 INFO L82 PathProgramCache]: Analyzing trace with hash 870315564, now seen corresponding path program 1 times [2020-09-25 06:28:26,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:26,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768417038] [2020-09-25 06:28:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:26,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:27,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:27,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:30,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:31,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:31,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 06:28:31,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 06:28:31,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:31,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:28:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:28:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:28:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:32,079 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:32,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:32,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 06:28:32,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:32,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:32,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:32,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:32,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:32,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:32,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:32,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:32,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:32,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:32,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:32,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:32,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:32,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:32,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:32,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:28:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:28:32,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:32,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:28:32,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:28:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:32,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:32,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:32,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:32,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:28:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:32,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:32,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:32,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:28:32,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:32,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:32,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:28:32,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:32,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:32,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:32,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768417038] [2020-09-25 06:28:32,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:32,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:28:32,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550329359] [2020-09-25 06:28:32,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:28:32,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:32,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:28:32,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:28:32,355 INFO L87 Difference]: Start difference. First operand 402 states and 445 transitions. Second operand 9 states. [2020-09-25 06:28:32,823 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:34,117 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:28:34,433 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:28:34,741 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:28:35,055 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:28:35,343 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:28:35,980 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:36,319 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:28:36,627 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:37,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:37,690 INFO L93 Difference]: Finished difference Result 949 states and 1135 transitions. [2020-09-25 06:28:37,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:28:37,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 06:28:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:37,697 INFO L225 Difference]: With dead ends: 949 [2020-09-25 06:28:37,698 INFO L226 Difference]: Without dead ends: 657 [2020-09-25 06:28:37,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:28:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-09-25 06:28:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 580. [2020-09-25 06:28:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-25 06:28:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 660 transitions. [2020-09-25 06:28:37,782 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 660 transitions. Word has length 161 [2020-09-25 06:28:37,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:37,783 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 660 transitions. [2020-09-25 06:28:37,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:28:37,783 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 660 transitions. [2020-09-25 06:28:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 06:28:37,786 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:37,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:37,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:28:37,787 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:37,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1978598191, now seen corresponding path program 1 times [2020-09-25 06:28:37,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:37,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286337752] [2020-09-25 06:28:37,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:42,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:42,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 06:28:42,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:28:42,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 06:28:42,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:42,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 06:28:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:28:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,188 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:43,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:43,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 06:28:43,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:43,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:43,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:43,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:43,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:43,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:43,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:43,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:43,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:28:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:43,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:43,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:28:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:28:43,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 06:28:43,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:28:43,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:28:43,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 06:28:43,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 06:28:43,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:43,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:28:43,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:28:43,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:28:43,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:28:43,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:28:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:28:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:28:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:28:43,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:43,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:28:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:43,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:43,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:28:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 06:28:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:43,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:43,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 06:28:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:43,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:43,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:43,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:43,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286337752] [2020-09-25 06:28:43,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:43,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:28:43,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288624377] [2020-09-25 06:28:43,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:28:43,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:43,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:28:43,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:28:43,680 INFO L87 Difference]: Start difference. First operand 580 states and 660 transitions. Second operand 10 states. [2020-09-25 06:28:45,090 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:45,402 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:28:45,697 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:28:46,043 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:46,361 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:28:46,652 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:47,822 INFO L93 Difference]: Finished difference Result 1225 states and 1481 transitions. [2020-09-25 06:28:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:28:47,823 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 06:28:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:47,829 INFO L225 Difference]: With dead ends: 1225 [2020-09-25 06:28:47,829 INFO L226 Difference]: Without dead ends: 755 [2020-09-25 06:28:47,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:28:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-09-25 06:28:47,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 599. [2020-09-25 06:28:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-09-25 06:28:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 680 transitions. [2020-09-25 06:28:47,926 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 680 transitions. Word has length 194 [2020-09-25 06:28:47,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:47,927 INFO L479 AbstractCegarLoop]: Abstraction has 599 states and 680 transitions. [2020-09-25 06:28:47,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:28:47,927 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 680 transitions. [2020-09-25 06:28:47,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 06:28:47,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:47,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:47,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:28:47,931 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:47,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:47,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1342498929, now seen corresponding path program 1 times [2020-09-25 06:28:47,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:47,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639779732] [2020-09-25 06:28:47,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat