/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_spec1_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:05:02,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:05:02,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:05:02,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:05:02,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:05:02,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:05:02,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:05:02,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:05:02,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:05:02,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:05:02,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:05:02,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:05:02,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:05:02,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:05:02,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:05:02,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:05:02,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:05:02,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:05:02,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:05:02,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:05:02,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:05:02,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:05:02,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:05:02,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:05:02,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:05:02,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:05:02,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:05:02,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:05:02,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:05:02,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:05:02,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:05:02,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:05:02,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:05:02,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:05:02,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:05:02,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:05:02,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:05:02,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:05:02,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:05:02,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:05:02,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:05:02,784 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 13:05:02,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:05:02,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:05:02,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:05:02,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:05:02,820 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:05:02,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:05:02,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:05:02,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:05:02,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:05:02,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:05:02,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:05:02,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:05:02,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:05:02,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:05:02,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:05:02,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:05:02,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:05:02,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:05:02,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:05:02,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:05:02,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:05:02,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:02,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:05:02,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:05:02,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:05:02,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:05:02,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:05:02,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:05:02,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:05:02,828 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 13:05:03,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:05:03,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:05:03,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:05:03,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:05:03,348 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:05:03,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product31.cil.c [2020-09-25 13:05:03,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/977e2e333/1c97b1ac744a416a9e2082a4efd63796/FLAGaeedd204a [2020-09-25 13:05:04,104 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:05:04,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product31.cil.c [2020-09-25 13:05:04,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/977e2e333/1c97b1ac744a416a9e2082a4efd63796/FLAGaeedd204a [2020-09-25 13:05:04,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/977e2e333/1c97b1ac744a416a9e2082a4efd63796 [2020-09-25 13:05:04,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:05:04,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:05:04,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:04,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:05:04,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:05:04,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac45341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04, skipping insertion in model container [2020-09-25 13:05:04,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:05:04,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:05:04,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:04,867 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:05:04,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:04,997 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:05:04,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04 WrapperNode [2020-09-25 13:05:04,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:04,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:05:04,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:05:04,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:05:05,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:05,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:05,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:05,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:05,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:05,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:05,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:05,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:05:05,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:05:05,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:05:05,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:05:05,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (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 13:05:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:05:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:05:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:05:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:05:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:05:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:05:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:05:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:05:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:05:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:05:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:05:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:05:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:05:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:05:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:05:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:05:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:05:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:05:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:05:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:05:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:05:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:05:05,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:05:05,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:05:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:05:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:05:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:05:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:05:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:05:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:05:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:05:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:05:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:05:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:05:05,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:05:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:05:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:05:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:05:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:05:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:05:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:05:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:05:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:05:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:05:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:05:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:05:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:05:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:05:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:05:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:05:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:05:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:05:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:05:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:05:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:05:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:05:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:05:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:05:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:05:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:05:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:05:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:05:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:05:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:05:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:05:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:05:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:05:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:05:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:05:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:05:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:05:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:05:05,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:05,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:05:05,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:05:05,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:05:05,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:05:05,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:05:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:05:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:05:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:05:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:05:05,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:05:05,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:05:05,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:05:06,426 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:05:06,427 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:05:06,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:06 BoogieIcfgContainer [2020-09-25 13:05:06,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:05:06,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:05:06,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:05:06,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:05:06,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:05:04" (1/3) ... [2020-09-25 13:05:06,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:06, skipping insertion in model container [2020-09-25 13:05:06,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (2/3) ... [2020-09-25 13:05:06,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:06, skipping insertion in model container [2020-09-25 13:05:06,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:06" (3/3) ... [2020-09-25 13:05:06,449 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product31.cil.c [2020-09-25 13:05:06,460 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:05:06,470 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:05:06,489 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:05:06,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:05:06,517 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:05:06,517 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:05:06,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:05:06,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:05:06,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:05:06,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:05:06,518 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:05:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-25 13:05:06,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:05:06,562 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:06,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:06,564 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:06,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:06,572 INFO L82 PathProgramCache]: Analyzing trace with hash 736300946, now seen corresponding path program 1 times [2020-09-25 13:05:06,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:06,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81926323] [2020-09-25 13:05:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:07,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:08,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:09,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:11,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:11,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:05:11,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:11,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 13:05:11,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:11,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:05:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:05:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 13:05:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:05:12,462 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:12,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:12,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 13:05:12,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:05:12,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:12,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:12,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:12,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:12,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:05:12,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:12,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:12,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:12,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:05:12,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:12,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:13,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:13,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:13,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:13,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:13,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:13,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:13,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:05:13,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:13,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:13,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:13,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:13,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:13,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:13,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:13,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:13,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:05:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:13,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:13,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:13,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:13,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81926323] [2020-09-25 13:05:13,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:13,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:05:13,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495960620] [2020-09-25 13:05:13,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:05:13,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:13,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:05:13,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:05:13,133 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 4 states. [2020-09-25 13:05:13,687 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:15,808 INFO L93 Difference]: Finished difference Result 641 states and 787 transitions. [2020-09-25 13:05:15,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:05:15,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:05:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:15,838 INFO L225 Difference]: With dead ends: 641 [2020-09-25 13:05:15,838 INFO L226 Difference]: Without dead ends: 451 [2020-09-25 13:05:15,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:05:15,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-25 13:05:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 384. [2020-09-25 13:05:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 13:05:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 433 transitions. [2020-09-25 13:05:16,027 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 433 transitions. Word has length 142 [2020-09-25 13:05:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:16,029 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 433 transitions. [2020-09-25 13:05:16,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:05:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 433 transitions. [2020-09-25 13:05:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 13:05:16,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:16,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:16,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:05:16,042 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:16,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:16,043 INFO L82 PathProgramCache]: Analyzing trace with hash -464578545, now seen corresponding path program 1 times [2020-09-25 13:05:16,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:16,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891465817] [2020-09-25 13:05:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:16,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:16,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:17,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:18,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:05:21,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:05:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 13:05:21,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:05:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:05:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 13:05:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,464 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:21,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:21,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 13:05:21,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:05:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:21,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:21,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:21,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:21,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:21,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:21,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:21,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:21,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 13:05:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:05:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:21,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:05:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:21,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:21,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:21,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:21,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:21,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:21,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 13:05:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:21,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:21,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:21,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:05:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:21,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:21,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:21,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:21,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:21,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:21,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891465817] [2020-09-25 13:05:21,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:21,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:05:21,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423416972] [2020-09-25 13:05:21,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:05:21,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:21,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:05:21,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:05:21,991 INFO L87 Difference]: Start difference. First operand 384 states and 433 transitions. Second operand 9 states. [2020-09-25 13:05:22,620 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:23,687 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:24,039 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:25,021 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:25,364 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:25,810 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:26,163 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:26,535 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:26,994 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:28,422 INFO L93 Difference]: Finished difference Result 1142 states and 1449 transitions. [2020-09-25 13:05:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:05:28,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-09-25 13:05:28,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:28,443 INFO L225 Difference]: With dead ends: 1142 [2020-09-25 13:05:28,443 INFO L226 Difference]: Without dead ends: 821 [2020-09-25 13:05:28,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:05:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2020-09-25 13:05:28,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 611. [2020-09-25 13:05:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-25 13:05:28,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 700 transitions. [2020-09-25 13:05:28,649 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 700 transitions. Word has length 165 [2020-09-25 13:05:28,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:28,650 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 700 transitions. [2020-09-25 13:05:28,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:05:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 700 transitions. [2020-09-25 13:05:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 13:05:28,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:28,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:28,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:05:28,656 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:28,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:28,656 INFO L82 PathProgramCache]: Analyzing trace with hash 672953229, now seen corresponding path program 1 times [2020-09-25 13:05:28,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:28,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105745744] [2020-09-25 13:05:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:29,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:29,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:32,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:32,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:05:32,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:05:32,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3997 [2020-09-25 13:05:32,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:32,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:05:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:05:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 13:05:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,112 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:33,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-25 13:05:33,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:05:33,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:33,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 13:05:33,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:33,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:05:33,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:33,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:05:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:33,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:05:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:05:33,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:05:33,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:05:33,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:05:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:05:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:05:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:05:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:33,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 13:05:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:05:33,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:33,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105745744] [2020-09-25 13:05:33,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:33,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:05:33,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317344869] [2020-09-25 13:05:33,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:05:33,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:33,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:05:33,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:05:33,792 INFO L87 Difference]: Start difference. First operand 611 states and 700 transitions. Second operand 11 states. [2020-09-25 13:05:34,339 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:35,711 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:36,077 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:36,418 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:36,725 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:05:37,038 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:05:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:37,471 INFO L93 Difference]: Finished difference Result 987 states and 1183 transitions. [2020-09-25 13:05:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:05:37,472 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 13:05:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:37,473 INFO L225 Difference]: With dead ends: 987 [2020-09-25 13:05:37,473 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:05:37,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-09-25 13:05:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:05:37,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:05:37,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:05:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:05:37,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-09-25 13:05:37,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:37,478 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:05:37,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:05:37,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:05:37,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:05:37,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:05:37,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:05:37,637 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 13:05:37,815 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:37,989 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:38,152 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:38,316 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:38,555 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 13:05:38,924 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:39,036 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 13:05:39,193 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:39,359 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:39,525 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:39,682 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:39,850 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:40,006 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:40,152 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:40,302 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:40,451 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:40,613 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:40,895 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 13:05:41,244 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:05:41,581 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:41,925 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:05:42,163 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 13:05:42,497 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:05:42,734 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 13:05:43,070 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:05:43,602 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:43,934 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:44,184 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:05:44,428 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:44,578 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:44,731 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:44,891 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,049 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,211 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,366 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:45,519 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:45,668 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:45,842 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:46,009 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:46,157 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:46,333 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:46,481 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:46,639 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:46,782 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:46,935 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:47,083 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:47,235 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:47,384 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:47,540 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:47,688 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:47,846 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:47,995 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:48,144 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:48,289 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:48,433 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:48,577 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:48,731 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:48,884 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:49,037 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:49,185 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:49,344 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:49,501 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:49,650 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:49,803 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:49,956 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:50,113 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:50,261 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:50,414 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:50,572 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:50,731 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:50,884 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:51,049 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:51,197 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:51,340 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:51,489 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:51,643 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:51,786 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:51,934 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:52,081 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:52,597 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:52,838 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:52,990 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:53,148 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:53,301 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:53,458 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:53,615 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:53,765 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:53,920 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:54,085 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:54,245 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:54,399 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:54,551 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:54,905 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:55,065 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:55,219 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:55,371 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:55,532 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:55,686 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:56,023 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:05:56,359 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:56,694 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:05:56,842 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:57,178 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:05:57,325 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:57,662 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191