/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_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:27:34,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:27:34,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:27:34,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:27:34,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:27:34,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:27:34,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:27:34,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:27:34,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:27:34,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:27:34,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:27:34,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:27:34,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:27:34,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:27:34,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:27:34,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:27:34,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:27:34,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:27:34,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:27:34,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:27:34,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:27:34,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:27:34,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:27:34,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:27:34,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:27:34,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:27:34,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:27:34,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:27:34,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:27:34,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:27:34,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:27:34,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:27:34,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:27:34,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:27:34,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:27:34,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:27:34,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:27:34,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:27:34,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:27:34,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:27:34,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:27:34,766 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 06:27:34,793 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:27:34,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:27:34,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:27:34,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:27:34,798 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:27:34,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:27:34,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:27:34,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:27:34,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:27:34,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:27:34,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:27:34,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:27:34,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:27:34,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:27:34,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:27:34,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:27:34,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:27:34,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:27:34,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:27:34,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:27:34,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:27:34,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:27:34,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:27:34,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:27:34,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:27:34,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:27:34,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:27:34,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:27:34,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:27:34,806 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 06:27:35,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:27:35,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:27:35,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:27:35,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:27:35,333 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:27:35,334 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 06:27:35,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/243728e06/9f63a39c112444c99b130d9dd06de13b/FLAG0b4be6946 [2020-09-25 06:27:36,109 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:27:36,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 06:27:36,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/243728e06/9f63a39c112444c99b130d9dd06de13b/FLAG0b4be6946 [2020-09-25 06:27:36,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/243728e06/9f63a39c112444c99b130d9dd06de13b [2020-09-25 06:27:36,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:27:36,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:27:36,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:36,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:27:36,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:27:36,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:36" (1/1) ... [2020-09-25 06:27:36,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dadf5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:36, skipping insertion in model container [2020-09-25 06:27:36,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:36" (1/1) ... [2020-09-25 06:27:36,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:27:36,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:27:36,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:37,002 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:27:37,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:37,135 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:27:37,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37 WrapperNode [2020-09-25 06:27:37,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:37,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:27:37,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:27:37,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:27:37,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (1/1) ... [2020-09-25 06:27:37,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (1/1) ... [2020-09-25 06:27:37,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (1/1) ... [2020-09-25 06:27:37,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (1/1) ... [2020-09-25 06:27:37,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (1/1) ... [2020-09-25 06:27:37,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (1/1) ... [2020-09-25 06:27:37,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (1/1) ... [2020-09-25 06:27:37,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:27:37,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:27:37,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:27:37,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:27:37,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (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 06:27:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:27:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:27:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:27:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:27:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:27:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:27:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:27:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:27:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:27:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:27:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:27:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:27:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:27:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:27:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:27:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:27:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:27:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:27:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:27:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:27:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:27:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:27:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:27:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:27:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:27:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:27:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:27:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:27:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:27:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:27:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:27:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:27:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:27:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:27:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:27:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:27:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:27:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:27:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:27:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:27:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:27:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:27:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:27:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:27:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:27:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:27:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:27:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:27:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:27:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:27:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:27:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:27:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:27:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:27:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:27:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:27:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:27:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:27:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:27:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:27:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:27:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:27:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:27:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:27:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:27:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:27:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:27:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:27:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:27:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:27:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:27:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:27:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:27:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:27:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:27:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:27:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:27:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:27:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:27:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:27:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:27:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:27:38,486 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:27:38,487 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:27:38,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:38 BoogieIcfgContainer [2020-09-25 06:27:38,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:27:38,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:27:38,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:27:38,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:27:38,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:27:36" (1/3) ... [2020-09-25 06:27:38,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:38, skipping insertion in model container [2020-09-25 06:27:38,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:37" (2/3) ... [2020-09-25 06:27:38,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:38, skipping insertion in model container [2020-09-25 06:27:38,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:38" (3/3) ... [2020-09-25 06:27:38,505 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-09-25 06:27:38,516 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:27:38,528 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:27:38,551 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:27:38,582 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:27:38,582 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:27:38,582 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:27:38,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:27:38,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:27:38,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:27:38,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:27:38,583 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:27:38,613 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 06:27:38,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:27:38,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:38,632 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 06:27:38,632 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:38,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:38,639 INFO L82 PathProgramCache]: Analyzing trace with hash -66701350, now seen corresponding path program 1 times [2020-09-25 06:27:38,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:38,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981997027] [2020-09-25 06:27:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:39,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:39,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:40,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:41,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:27:44,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:27:44,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 06:27:44,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:27:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:27:44,478 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:44,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:44,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:44,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:44,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 06:27:44,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:44,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:44,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:44,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:44,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:27:44,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:44,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:44,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:44,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:44,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:44,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 51 [2020-09-25 06:27:44,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:44,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:44,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:44,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:27:44,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:44,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:44,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:44,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:44,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:44,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:27:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:44,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:44,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:44,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:44,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:27:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:44,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:44,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:44,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:44,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:44,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:44,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:44,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:44,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:44,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:44,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:44,887 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 06:27:44,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981997027] [2020-09-25 06:27:44,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:44,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:27:44,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995942651] [2020-09-25 06:27:44,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:27:44,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:44,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:27:44,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:27:44,923 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-09-25 06:27:46,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:46,256 INFO L93 Difference]: Finished difference Result 474 states and 559 transitions. [2020-09-25 06:27:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:27:46,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:27:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:46,279 INFO L225 Difference]: With dead ends: 474 [2020-09-25 06:27:46,279 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 06:27:46,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:27:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 06:27:46,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 253. [2020-09-25 06:27:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 06:27:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 272 transitions. [2020-09-25 06:27:46,423 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 272 transitions. Word has length 142 [2020-09-25 06:27:46,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:46,425 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 272 transitions. [2020-09-25 06:27:46,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:27:46,425 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 272 transitions. [2020-09-25 06:27:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:27:46,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:46,439 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 06:27:46,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:27:46,440 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:46,441 INFO L82 PathProgramCache]: Analyzing trace with hash -2010231336, now seen corresponding path program 1 times [2020-09-25 06:27:46,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:46,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870269059] [2020-09-25 06:27:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:48,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:49,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:51,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:51,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:27:51,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:27:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:27:51,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:51,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:51,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:27:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:27:51,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:51,881 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:51,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:51,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:51,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:51,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:27:51,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:51,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:52,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:52,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:52,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:52,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:52,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:27:52,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:52,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:52,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:52,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:52,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:52,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:52,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:52,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:52,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:52,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:52,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:52,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:52,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:52,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:52,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:52,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:52,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:52,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:52,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:52,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:52,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:52,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:52,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:52,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:52,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:52,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:52,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:52,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:52,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:27:52,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:52,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:52,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:52,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:27:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:52,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:52,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:52,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:52,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:52,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:52,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:52,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:52,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:52,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:27:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:52,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:52,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:52,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:52,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:52,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:52,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:52,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:52,084 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 06:27:52,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870269059] [2020-09-25 06:27:52,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:52,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:27:52,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229608399] [2020-09-25 06:27:52,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:27:52,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:52,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:27:52,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:27:52,089 INFO L87 Difference]: Start difference. First operand 253 states and 272 transitions. Second operand 4 states. [2020-09-25 06:27:52,777 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:27:53,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:53,751 INFO L93 Difference]: Finished difference Result 387 states and 430 transitions. [2020-09-25 06:27:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:27:53,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:27:53,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:53,756 INFO L225 Difference]: With dead ends: 387 [2020-09-25 06:27:53,757 INFO L226 Difference]: Without dead ends: 278 [2020-09-25 06:27:53,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:27:53,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-25 06:27:53,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 243. [2020-09-25 06:27:53,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 06:27:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 259 transitions. [2020-09-25 06:27:53,810 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 259 transitions. Word has length 143 [2020-09-25 06:27:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:53,811 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 259 transitions. [2020-09-25 06:27:53,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:27:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 259 transitions. [2020-09-25 06:27:53,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 06:27:53,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:53,814 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 06:27:53,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:27:53,815 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:53,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:53,815 INFO L82 PathProgramCache]: Analyzing trace with hash 734706202, now seen corresponding path program 1 times [2020-09-25 06:27:53,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:53,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55775032] [2020-09-25 06:27:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:53,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:54,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:55,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:56,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:58,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:58,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:27:58,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:27:58,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 06:27:58,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:58,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:27:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:27:58,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:59,149 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:59,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:59,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 06:27:59,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:59,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:59,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:27:59,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:27:59,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:59,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:59,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:59,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:59,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:59,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:27:59,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:59,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:59,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:59,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:59,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:59,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:27:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:27:59,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:59,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:27:59,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:59,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:27:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:59,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:59,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:59,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:59,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:27:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:59,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:59,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:59,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:59,471 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 06:27:59,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55775032] [2020-09-25 06:27:59,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:59,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:27:59,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407080770] [2020-09-25 06:27:59,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:27:59,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:59,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:27:59,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:27:59,474 INFO L87 Difference]: Start difference. First operand 243 states and 259 transitions. Second operand 5 states. [2020-09-25 06:28:00,018 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:01,007 INFO L93 Difference]: Finished difference Result 433 states and 492 transitions. [2020-09-25 06:28:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:28:01,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 06:28:01,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:01,013 INFO L225 Difference]: With dead ends: 433 [2020-09-25 06:28:01,014 INFO L226 Difference]: Without dead ends: 300 [2020-09-25 06:28:01,015 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 06:28:01,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-25 06:28:01,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 243. [2020-09-25 06:28:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 06:28:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 258 transitions. [2020-09-25 06:28:01,063 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 258 transitions. Word has length 156 [2020-09-25 06:28:01,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:01,064 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 258 transitions. [2020-09-25 06:28:01,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:28:01,064 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 258 transitions. [2020-09-25 06:28:01,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 06:28:01,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:01,067 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] [2020-09-25 06:28:01,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:28:01,067 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:01,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:01,068 INFO L82 PathProgramCache]: Analyzing trace with hash 819157147, now seen corresponding path program 1 times [2020-09-25 06:28:01,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:01,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682400659] [2020-09-25 06:28:01,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:01,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:01,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:02,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:03,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:04,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 06:28:06,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:28:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:28:06,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:28:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 06:28:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:06,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,449 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:06,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:06,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 06:28:06,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:06,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:06,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:06,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:28:06,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:06,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:06,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:06,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:06,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:06,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:28:06,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:28:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:06,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:28:06,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:28:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:28:06,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:28:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:28:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:28:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:28:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:06,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:06,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:28:06,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:06,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:06,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:06,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:28:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:06,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:06,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 06:28:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:06,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:06,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:06,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:06,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:06,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:06,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:06,849 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 06:28:06,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682400659] [2020-09-25 06:28:06,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:06,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:28:06,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276087971] [2020-09-25 06:28:06,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:28:06,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:06,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:28:06,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:28:06,856 INFO L87 Difference]: Start difference. First operand 243 states and 258 transitions. Second operand 7 states. [2020-09-25 06:28:07,626 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:09,301 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:10,086 INFO L93 Difference]: Finished difference Result 604 states and 709 transitions. [2020-09-25 06:28:10,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:28:10,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-09-25 06:28:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:10,090 INFO L225 Difference]: With dead ends: 604 [2020-09-25 06:28:10,090 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 06:28:10,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:28:10,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 06:28:10,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 344. [2020-09-25 06:28:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 06:28:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 369 transitions. [2020-09-25 06:28:10,148 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 369 transitions. Word has length 164 [2020-09-25 06:28:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:10,149 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 369 transitions. [2020-09-25 06:28:10,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:28:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 369 transitions. [2020-09-25 06:28:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 06:28:10,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:10,152 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] [2020-09-25 06:28:10,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:28:10,152 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:10,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:10,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1786267109, now seen corresponding path program 1 times [2020-09-25 06:28:10,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:10,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799368747] [2020-09-25 06:28:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:10,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:11,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:11,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 06:28:15,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:28:15,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 06:28:15,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:28:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 06:28:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 06:28:15,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:15,625 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:15,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 06:28:15,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:15,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:15,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:15,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:15,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:15,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:15,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:28:15,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:15,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:15,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:28:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:15,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:15,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:28:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:28:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:28:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 06:28:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:28:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:28:16,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 06:28:16,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:28:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:16,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:28:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:28:16,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:16,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:16,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:28:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:16,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:16,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:16,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 06:28:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:16,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:16,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:16,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 06:28:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:16,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:16,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:16,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:16,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:16,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:28:16,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:16,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:28:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:16,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:16,121 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 06:28:16,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799368747] [2020-09-25 06:28:16,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:16,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:28:16,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957722596] [2020-09-25 06:28:16,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:28:16,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:16,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:28:16,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:28:16,124 INFO L87 Difference]: Start difference. First operand 344 states and 369 transitions. Second operand 10 states. [2020-09-25 06:28:16,705 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:18,211 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:28:18,599 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:28:18,974 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:28:19,340 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 06:28:19,670 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:28:20,129 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:20,452 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:28:20,836 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:28:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:21,707 INFO L93 Difference]: Finished difference Result 474 states and 553 transitions. [2020-09-25 06:28:21,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:28:21,708 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-25 06:28:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:21,714 INFO L225 Difference]: With dead ends: 474 [2020-09-25 06:28:21,714 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 06:28:21,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 06:28:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 06:28:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 344. [2020-09-25 06:28:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 06:28:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 368 transitions. [2020-09-25 06:28:21,767 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 368 transitions. Word has length 188 [2020-09-25 06:28:21,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:21,768 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 368 transitions. [2020-09-25 06:28:21,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:28:21,768 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 368 transitions. [2020-09-25 06:28:21,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 06:28:21,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:21,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:21,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:28:21,772 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:21,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:21,772 INFO L82 PathProgramCache]: Analyzing trace with hash 342460363, now seen corresponding path program 1 times [2020-09-25 06:28:21,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:21,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236030765] [2020-09-25 06:28:21,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:21,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:22,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking...