/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_spec5_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:17:46,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:17:46,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:17:46,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:17:46,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:17:46,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:17:46,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:17:46,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:17:46,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:17:46,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:17:46,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:17:46,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:17:46,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:17:46,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:17:46,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:17:46,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:17:46,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:17:46,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:17:46,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:17:46,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:17:46,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:17:46,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:17:46,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:17:46,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:17:46,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:17:46,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:17:46,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:17:46,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:17:46,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:17:46,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:17:46,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:17:46,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:17:46,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:17:46,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:17:46,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:17:46,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:17:46,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:17:46,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:17:46,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:17:46,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:17:46,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:17:46,824 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 13:17:46,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:17:46,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:17:46,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:17:46,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:17:46,872 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:17:46,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:17:46,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:17:46,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:17:46,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:17:46,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:17:46,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:17:46,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:17:46,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:17:46,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:17:46,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:17:46,876 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:17:46,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:17:46,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:17:46,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:17:46,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:17:46,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:17:46,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:17:46,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:17:46,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:17:46,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:17:46,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:17:46,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:17:46,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:17:46,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:17:46,879 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:17:47,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:17:47,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:17:47,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:17:47,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:17:47,311 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:17:47,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-09-25 13:17:47,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70691feb3/8f1f5de83f48437b815851ab9bf425ac/FLAGc2d09becd [2020-09-25 13:17:48,012 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:17:48,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-09-25 13:17:48,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70691feb3/8f1f5de83f48437b815851ab9bf425ac/FLAGc2d09becd [2020-09-25 13:17:48,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70691feb3/8f1f5de83f48437b815851ab9bf425ac [2020-09-25 13:17:48,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:17:48,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:17:48,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:17:48,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:17:48,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:17:48,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:17:48" (1/1) ... [2020-09-25 13:17:48,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:48, skipping insertion in model container [2020-09-25 13:17:48,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:17:48" (1/1) ... [2020-09-25 13:17:48,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:17:48,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:17:48,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:17:48,863 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:17:49,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:17:49,050 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:17:49,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49 WrapperNode [2020-09-25 13:17:49,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:17:49,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:17:49,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:17:49,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:17:49,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (1/1) ... [2020-09-25 13:17:49,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (1/1) ... [2020-09-25 13:17:49,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (1/1) ... [2020-09-25 13:17:49,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (1/1) ... [2020-09-25 13:17:49,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (1/1) ... [2020-09-25 13:17:49,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (1/1) ... [2020-09-25 13:17:49,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (1/1) ... [2020-09-25 13:17:49,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:17:49,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:17:49,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:17:49,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:17:49,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (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 13:17:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:17:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:17:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:17:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:17:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:17:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:17:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:17:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:17:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:17:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:17:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:17:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:17:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:17:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:17:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:17:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:17:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:17:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:17:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:17:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:17:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:17:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:17:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:17:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:17:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:17:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:17:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:17:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:17:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:17:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:17:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:17:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 13:17:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 13:17:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 13:17:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:17:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:17:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:17:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:17:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:17:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:17:49,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:17:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:17:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:17:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:17:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:17:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:17:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:17:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 13:17:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:17:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:17:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:17:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:17:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:17:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:17:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:17:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:17:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:17:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:17:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:17:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:17:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:17:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:17:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:17:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:17:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:17:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:17:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:17:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:17:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:17:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:17:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:17:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:17:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:17:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:17:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:17:50,320 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:17:50,320 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:17:50,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:17:50 BoogieIcfgContainer [2020-09-25 13:17:50,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:17:50,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:17:50,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:17:50,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:17:50,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:17:48" (1/3) ... [2020-09-25 13:17:50,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8fe392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:17:50, skipping insertion in model container [2020-09-25 13:17:50,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:17:49" (2/3) ... [2020-09-25 13:17:50,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8fe392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:17:50, skipping insertion in model container [2020-09-25 13:17:50,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:17:50" (3/3) ... [2020-09-25 13:17:50,337 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-09-25 13:17:50,348 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:17:50,362 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:17:50,381 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:17:50,414 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:17:50,414 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:17:50,414 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:17:50,414 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:17:50,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:17:50,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:17:50,415 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:17:50,415 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:17:50,440 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 13:17:50,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 13:17:50,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:17:50,461 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:50,461 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:17:50,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:17:50,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1597638974, now seen corresponding path program 1 times [2020-09-25 13:17:50,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:17:50,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350788872] [2020-09-25 13:17:50,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:17:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:51,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:52,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:52,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:55,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:55,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:55,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 13:17:55,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:17:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 13:17:55,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:55,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:55,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:17:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:17:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 13:17:55,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 13:17:56,380 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:17:56,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:17:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:56,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:56,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:56,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:17:56,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:56,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-25 13:17:56,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:56,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:17:56,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:56,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:17:56,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:56,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:17:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:56,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:56,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:17:56,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:56,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:17:56,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:56,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:17:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:17:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:56,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:17:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:56,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:56,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:56,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:17:56,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:17:56,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:56,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:17:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:17:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:56,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:17:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:56,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:56,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:56,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:17:56,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:17:56,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:56,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:17:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:17:56,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:17:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:56,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:56,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:17:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:56,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:17:56,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:56,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:17:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:17:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:56,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:17:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:56,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:56,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:17:56,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:56,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:17:56,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:56,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:17:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:17:56,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:56,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:17:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:56,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:57,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:57,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:17:57,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:57,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:17:57,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:57,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:17:57,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:57,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:17:57,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:57,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:17:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:57,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:57,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:57,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:17:57,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:57,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:17:57,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:57,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:17:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:17:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:17:57,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:57,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 13:17:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:57,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:57,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:57,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:17:57,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:57,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:17:57,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:57,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:17:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:17:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:17:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:17:57,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 13:17:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:17:57,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:17:57,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:17:57,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:17:57,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:17:57,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:17:57,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:17:57,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:17:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:17:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:17:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:17:57,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:17:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 13:17:57,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350788872] [2020-09-25 13:17:57,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:17:57,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:17:57,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020568410] [2020-09-25 13:17:57,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:17:57,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:17:57,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:17:57,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:17:57,123 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 6 states. [2020-09-25 13:17:57,809 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:17:58,811 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:18:00,422 INFO L93 Difference]: Finished difference Result 733 states and 886 transitions. [2020-09-25 13:18:00,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 13:18:00,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 13:18:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:18:00,476 INFO L225 Difference]: With dead ends: 733 [2020-09-25 13:18:00,477 INFO L226 Difference]: Without dead ends: 541 [2020-09-25 13:18:00,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:18:00,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2020-09-25 13:18:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 457. [2020-09-25 13:18:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-09-25 13:18:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 516 transitions. [2020-09-25 13:18:00,665 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 516 transitions. Word has length 160 [2020-09-25 13:18:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:18:00,666 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 516 transitions. [2020-09-25 13:18:00,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:18:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 516 transitions. [2020-09-25 13:18:00,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 13:18:00,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:18:00,673 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:00,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:18:00,674 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:18:00,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:18:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash 388105318, now seen corresponding path program 1 times [2020-09-25 13:18:00,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:18:00,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464615220] [2020-09-25 13:18:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:18:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:00,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:01,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:04,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:04,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:05,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:05,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 13:18:05,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:18:05,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 13:18:05,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:05,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:18:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:18:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 13:18:05,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,100 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:18:06,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:18:06,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 13:18:06,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:18:06,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:18:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:06,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:06,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:18:06,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:18:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:06,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:06,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:18:06,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:18:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:06,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:18:06,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:18:06,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 38 [2020-09-25 13:18:06,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:18:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:06,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:06,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:18:06,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:18:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:18:06,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:06,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:18:06,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:18:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:18:06,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:18:06,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:18:06,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:06,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:06,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:18:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:18:06,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:18:06,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:18:06,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:18:06,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:18:06,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:18:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:06,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:18:06,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:18:06,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 13:18:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:06,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:18:06,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:06,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:18:06,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:06,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:18:06,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 13:18:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:06,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:06,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:06,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:06,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:06,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:18:06,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:06,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:18:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:06,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 13:18:06,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464615220] [2020-09-25 13:18:06,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:18:06,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:18:06,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607079324] [2020-09-25 13:18:06,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:18:06,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:18:06,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:18:06,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:18:06,722 INFO L87 Difference]: Start difference. First operand 457 states and 516 transitions. Second operand 8 states. [2020-09-25 13:18:07,304 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:18:09,190 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:18:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:18:10,171 INFO L93 Difference]: Finished difference Result 1198 states and 1472 transitions. [2020-09-25 13:18:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:18:10,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-09-25 13:18:10,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:18:10,181 INFO L225 Difference]: With dead ends: 1198 [2020-09-25 13:18:10,181 INFO L226 Difference]: Without dead ends: 856 [2020-09-25 13:18:10,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:18:10,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-09-25 13:18:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 717. [2020-09-25 13:18:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-25 13:18:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 826 transitions. [2020-09-25 13:18:10,341 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 826 transitions. Word has length 169 [2020-09-25 13:18:10,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:18:10,342 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 826 transitions. [2020-09-25 13:18:10,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:18:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 826 transitions. [2020-09-25 13:18:10,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 13:18:10,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:18:10,347 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:10,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:18:10,347 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:18:10,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:18:10,348 INFO L82 PathProgramCache]: Analyzing trace with hash -45205301, now seen corresponding path program 1 times [2020-09-25 13:18:10,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:18:10,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929753169] [2020-09-25 13:18:10,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:18:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:10,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:10,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:11,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:13,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:15,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:15,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 13:18:15,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:18:15,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 13:18:15,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:15,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:18:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:18:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 13:18:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:15,844 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:18:15,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:15,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:18:16,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 13:18:16,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:18:16,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:18:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:16,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:18:16,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:18:16,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:18:16,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:18:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:16,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:18:16,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:18:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:18:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:16,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:18:16,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:18:16,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:18:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:16,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:18:16,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:18:16,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:18:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:18:16,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:18:16,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:18:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:18:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:18:16,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:18:16,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:18:16,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:18:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:18:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:18:16,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:18:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:18:16,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:18:16,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:18:16,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:16,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:16,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 13:18:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:16,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:18:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:18:16,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:18:16,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 13:18:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:16,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:16,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:16,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:16,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:18:16,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:16,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:16,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:18:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:18:16,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 13:18:16,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929753169] [2020-09-25 13:18:16,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:18:16,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:18:16,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546127582] [2020-09-25 13:18:16,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:18:16,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:18:16,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:18:16,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:18:16,628 INFO L87 Difference]: Start difference. First operand 717 states and 826 transitions. Second operand 11 states. [2020-09-25 13:18:17,232 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:18,087 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:18:18,442 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:18:19,759 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:18:20,099 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:18:20,511 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:20,910 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:18:21,269 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:18:21,602 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:18:22,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:18:22,420 INFO L93 Difference]: Finished difference Result 1488 states and 1810 transitions. [2020-09-25 13:18:22,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 13:18:22,421 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 179 [2020-09-25 13:18:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:18:22,427 INFO L225 Difference]: With dead ends: 1488 [2020-09-25 13:18:22,428 INFO L226 Difference]: Without dead ends: 886 [2020-09-25 13:18:22,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-09-25 13:18:22,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-09-25 13:18:22,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 714. [2020-09-25 13:18:22,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2020-09-25 13:18:22,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 817 transitions. [2020-09-25 13:18:22,538 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 817 transitions. Word has length 179 [2020-09-25 13:18:22,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:18:22,539 INFO L479 AbstractCegarLoop]: Abstraction has 714 states and 817 transitions. [2020-09-25 13:18:22,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:18:22,539 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 817 transitions. [2020-09-25 13:18:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 13:18:22,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:18:22,543 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:22,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:18:22,544 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:18:22,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:18:22,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1859397134, now seen corresponding path program 1 times [2020-09-25 13:18:22,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:18:22,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615823658] [2020-09-25 13:18:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:18:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:22,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:22,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:24,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:24,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 13:18:24,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:18:24,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2044 [2020-09-25 13:18:24,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:24,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:18:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-25 13:18:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:18:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:24,915 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:18:24,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:24,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:18:25,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 13:18:25,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:18:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:25,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:18:25,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:18:25,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:18:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:25,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:18:25,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:18:25,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:18:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:25,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:25,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:18:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:18:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:25,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:18:25,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:18:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:18:25,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:25,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:18:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:18:25,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:25,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:25,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:25,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:18:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:18:25,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 13:18:25,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:18:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:18:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:18:25,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:18:25,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:18:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:18:25,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:18:25,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:18:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:18:25,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:18:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:18:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:18:25,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:18:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:18:25,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:25,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:18:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 13:18:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:25,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:25,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:18:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 13:18:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:25,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:25,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:25,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:25,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:25,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:18:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:25,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 13:18:25,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615823658] [2020-09-25 13:18:25,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:18:25,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:18:25,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462677752] [2020-09-25 13:18:25,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:18:25,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:18:25,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:18:25,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:18:25,337 INFO L87 Difference]: Start difference. First operand 714 states and 817 transitions. Second operand 10 states. [2020-09-25 13:18:26,916 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:27,230 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:18:27,552 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:18:27,827 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:28,148 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:18:28,456 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:29,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:18:29,419 INFO L93 Difference]: Finished difference Result 1462 states and 1755 transitions. [2020-09-25 13:18:29,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:18:29,419 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 13:18:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:18:29,425 INFO L225 Difference]: With dead ends: 1462 [2020-09-25 13:18:29,425 INFO L226 Difference]: Without dead ends: 863 [2020-09-25 13:18:29,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:18:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2020-09-25 13:18:29,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 730. [2020-09-25 13:18:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-09-25 13:18:29,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 833 transitions. [2020-09-25 13:18:29,530 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 833 transitions. Word has length 194 [2020-09-25 13:18:29,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:18:29,532 INFO L479 AbstractCegarLoop]: Abstraction has 730 states and 833 transitions. [2020-09-25 13:18:29,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:18:29,532 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 833 transitions. [2020-09-25 13:18:29,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 13:18:29,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:18:29,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:29,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:18:29,538 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:18:29,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:18:29,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1295776338, now seen corresponding path program 1 times [2020-09-25 13:18:29,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:18:29,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192896716] [2020-09-25 13:18:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:18:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:29,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 13:18:31,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:18:31,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-09-25 13:18:31,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:18:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 13:18:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:18:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,486 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:18:31,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:18:31,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 13:18:31,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:18:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:31,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:31,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:18:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:31,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:31,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:18:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:31,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:18:31,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:18:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:18:31,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:31,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:18:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:18:31,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:31,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:18:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:18:31,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:18:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:31,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:31,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:18:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:18:31,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 13:18:31,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:18:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 13:18:31,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:18:31,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:18:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:18:31,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 13:18:31,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:18:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:18:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:18:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:18:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:18:31,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:18:31,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:18:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:18:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:18:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:18:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:18:31,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:31,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:18:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 13:18:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:31,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:18:31,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:18:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:31,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 13:18:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:18:31,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:18:31,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:18:31,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:18:31,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:18:31,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:18:31,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:18:31,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:18:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:18:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:18:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:18:31,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:18:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 13:18:32,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192896716] [2020-09-25 13:18:32,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:18:32,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:18:32,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495918549] [2020-09-25 13:18:32,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:18:32,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:18:32,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:18:32,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:18:32,021 INFO L87 Difference]: Start difference. First operand 730 states and 833 transitions. Second operand 9 states. [2020-09-25 13:18:33,597 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:33,845 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:18:34,158 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:34,483 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:18:34,783 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:18:35,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:18:35,811 INFO L93 Difference]: Finished difference Result 1500 states and 1820 transitions. [2020-09-25 13:18:35,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:18:35,812 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2020-09-25 13:18:35,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:18:35,819 INFO L225 Difference]: With dead ends: 1500 [2020-09-25 13:18:35,820 INFO L226 Difference]: Without dead ends: 885 [2020-09-25 13:18:35,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:18:35,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states.