/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=0.2 --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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:50:24,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:50:24,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:50:24,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:50:24,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:50:24,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:50:24,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:50:24,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:50:24,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:50:24,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:50:24,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:50:24,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:50:24,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:50:24,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:50:24,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:50:24,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:50:24,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:50:24,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:50:24,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:50:24,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:50:24,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:50:24,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:50:24,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:50:24,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:50:24,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:50:24,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:50:24,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:50:24,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:50:24,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:50:24,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:50:24,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:50:24,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:50:24,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:50:24,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:50:24,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:50:24,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:50:24,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:50:24,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:50:24,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:50:24,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:50:24,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:50:24,758 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 10:50:24,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:50:24,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:50:24,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:50:24,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:50:24,806 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:50:24,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:50:24,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:50:24,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:50:24,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:50:24,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:50:24,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:50:24,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:50:24,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:50:24,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:50:24,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:50:24,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:50:24,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:50:24,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:50:24,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:50:24,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:50:24,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:50:24,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:50:24,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:50:24,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:50:24,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:50:24,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:50:24,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:50:24,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:50:24,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:50:24,812 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 10:50:25,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:50:25,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:50:25,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:50:25,277 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:50:25,278 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:50:25,279 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-25 10:50:25,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7a4a6388/f3ecd5a938864af7adb1f88c5575660d/FLAGd5db33634 [2020-09-25 10:50:25,990 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:50:25,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-25 10:50:26,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7a4a6388/f3ecd5a938864af7adb1f88c5575660d/FLAGd5db33634 [2020-09-25 10:50:26,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7a4a6388/f3ecd5a938864af7adb1f88c5575660d [2020-09-25 10:50:26,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:50:26,237 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:50:26,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:50:26,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:50:26,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:50:26,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:50:26" (1/1) ... [2020-09-25 10:50:26,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1e44a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:26, skipping insertion in model container [2020-09-25 10:50:26,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:50:26" (1/1) ... [2020-09-25 10:50:26,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:50:26,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:50:26,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:50:26,844 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:50:26,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:50:27,010 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:50:27,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27 WrapperNode [2020-09-25 10:50:27,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:50:27,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:50:27,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:50:27,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:50:27,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (1/1) ... [2020-09-25 10:50:27,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (1/1) ... [2020-09-25 10:50:27,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (1/1) ... [2020-09-25 10:50:27,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (1/1) ... [2020-09-25 10:50:27,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (1/1) ... [2020-09-25 10:50:27,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (1/1) ... [2020-09-25 10:50:27,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (1/1) ... [2020-09-25 10:50:27,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:50:27,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:50:27,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:50:27,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:50:27,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (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 10:50:27,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:50:27,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:50:27,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:50:27,222 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:50:27,222 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:50:27,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:50:27,223 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:50:27,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:50:27,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:50:27,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:50:27,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:50:27,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:50:27,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:50:27,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:50:27,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:50:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:50:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:50:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:50:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:50:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:50:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:50:27,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:50:27,228 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:50:27,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:50:27,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:50:27,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:50:27,229 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:50:27,229 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:50:27,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:50:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:50:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:50:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:50:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:50:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:50:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:50:27,231 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:50:27,231 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:50:27,231 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:50:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:50:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:50:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:50:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:50:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:50:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:50:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:50:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:50:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:50:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:50:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:50:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:50:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:50:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:50:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:50:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:50:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:50:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:50:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:50:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:50:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:50:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:50:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:50:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:50:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:50:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:50:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:50:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:50:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:50:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:50:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:50:27,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:50:27,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:50:27,243 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:50:27,244 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:50:27,244 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:50:27,244 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:50:27,244 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:50:27,244 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:50:27,244 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:50:27,245 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:50:27,245 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:50:27,245 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:50:27,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:50:27,245 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:50:27,245 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:50:27,245 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:50:27,246 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:50:27,246 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:50:27,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:50:27,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:50:27,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:50:28,384 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:50:28,384 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:50:28,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:50:28 BoogieIcfgContainer [2020-09-25 10:50:28,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:50:28,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:50:28,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:50:28,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:50:28,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:50:26" (1/3) ... [2020-09-25 10:50:28,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4e99fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:50:28, skipping insertion in model container [2020-09-25 10:50:28,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:50:27" (2/3) ... [2020-09-25 10:50:28,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4e99fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:50:28, skipping insertion in model container [2020-09-25 10:50:28,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:50:28" (3/3) ... [2020-09-25 10:50:28,406 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-09-25 10:50:28,417 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:50:28,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:50:28,452 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:50:28,484 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:50:28,484 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:50:28,485 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:50:28,485 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:50:28,485 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:50:28,485 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:50:28,485 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:50:28,485 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:50:28,510 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-09-25 10:50:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:50:28,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:50:28,528 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 10:50:28,528 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:50:28,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:50:28,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1579336434, now seen corresponding path program 1 times [2020-09-25 10:50:28,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:50:28,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604038805] [2020-09-25 10:50:28,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:50:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:29,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:29,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:30,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:31,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:33,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:33,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:50:33,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:50:33,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 10:50:33,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:33,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:50:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:50:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:50:33,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:50:34,553 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:50:34,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:50:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:34,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:34,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:34,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:50:34,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-25 10:50:34,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:34,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:34,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:50:34,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:35,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:50:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:35,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:35,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:35,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:35,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:35,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:50:35,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:35,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:35,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:50:35,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:35,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:50:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:35,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:35,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:35,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:35,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:35,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 10:50:35,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:35,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:50:35,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:35,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:50:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:35,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:35,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:35,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:35,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:50:35,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:35,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:50:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:35,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:50:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:35,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:35,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:35,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:35,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:35,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:50:35,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:35,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:50:35,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:35,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:50:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:35,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:35,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:35,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:35,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:50:35,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:35,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:35,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:50:35,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:50:35,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:50:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:35,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:35,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:35,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:35,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:35,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:50:35,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:35,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:50:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:35,340 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 10:50:35,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604038805] [2020-09-25 10:50:35,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:50:35,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:50:35,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160600831] [2020-09-25 10:50:35,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:50:35,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:50:35,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:50:35,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:50:35,373 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 8 states. [2020-09-25 10:50:35,926 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:50:36,932 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:50:37,363 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:50:37,779 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:50:38,167 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:50:38,484 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:50:39,277 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:50:39,613 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:50:40,104 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:50:41,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:50:41,151 INFO L93 Difference]: Finished difference Result 567 states and 694 transitions. [2020-09-25 10:50:41,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:50:41,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:50:41,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:50:41,175 INFO L225 Difference]: With dead ends: 567 [2020-09-25 10:50:41,176 INFO L226 Difference]: Without dead ends: 379 [2020-09-25 10:50:41,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:50:41,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-09-25 10:50:41,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 327. [2020-09-25 10:50:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-09-25 10:50:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 359 transitions. [2020-09-25 10:50:41,334 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 359 transitions. Word has length 142 [2020-09-25 10:50:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:50:41,336 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 359 transitions. [2020-09-25 10:50:41,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:50:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 359 transitions. [2020-09-25 10:50:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 10:50:41,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:50:41,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:50:41,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:50:41,351 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:50:41,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:50:41,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1313763562, now seen corresponding path program 1 times [2020-09-25 10:50:41,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:50:41,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55188972] [2020-09-25 10:50:41,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:50:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:41,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:41,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:45,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:45,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:50:45,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:50:45,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4541 [2020-09-25 10:50:45,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:45,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:50:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:50:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 10:50:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,271 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:50:46,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:50:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:50:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 10:50:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:50:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:50:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:46,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:50:46,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:50:46,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:50:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:46,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:50:46,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:50:46,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:50:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:46,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:50:46,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:50:46,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:50:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:46,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:50:46,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:50:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:50:46,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:50:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:50:46,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:50:46,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:50:46,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:50:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:50:46,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:50:46,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:50:46,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:50:46,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 10:50:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:46,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:50:46,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:50:46,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 10:50:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:46,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:46,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:46,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:46,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:46,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:50:46,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:46,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:50:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:46,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:50:46,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:46,759 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 10:50:46,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55188972] [2020-09-25 10:50:46,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:50:46,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:50:46,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574272815] [2020-09-25 10:50:46,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:50:46,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:50:46,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:50:46,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:50:46,765 INFO L87 Difference]: Start difference. First operand 327 states and 359 transitions. Second operand 10 states. [2020-09-25 10:50:47,354 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:50:48,682 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:50:49,002 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:50:49,418 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:50:49,783 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:50:50,103 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:50:50,782 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:50:51,071 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:50:51,531 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:50:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:50:52,730 INFO L93 Difference]: Finished difference Result 930 states and 1174 transitions. [2020-09-25 10:50:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 10:50:52,732 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 10:50:52,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:50:52,742 INFO L225 Difference]: With dead ends: 930 [2020-09-25 10:50:52,742 INFO L226 Difference]: Without dead ends: 713 [2020-09-25 10:50:52,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 10:50:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-09-25 10:50:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 489. [2020-09-25 10:50:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-09-25 10:50:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 565 transitions. [2020-09-25 10:50:52,862 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 565 transitions. Word has length 161 [2020-09-25 10:50:52,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:50:52,863 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 565 transitions. [2020-09-25 10:50:52,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:50:52,863 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 565 transitions. [2020-09-25 10:50:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-25 10:50:52,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:50:52,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:50:52,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:50:52,868 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:50:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:50:52,868 INFO L82 PathProgramCache]: Analyzing trace with hash 2108873884, now seen corresponding path program 1 times [2020-09-25 10:50:52,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:50:52,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865216318] [2020-09-25 10:50:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:50:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:53,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:53,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:53,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:54,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:54,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:57,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:57,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 10:50:57,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:50:57,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 10:50:57,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:57,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 10:50:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 10:50:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,295 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:50:58,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:50:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:50:58,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 10:50:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:50:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:58,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:50:58,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:50:58,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:50:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:58,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:50:58,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:50:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:58,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:50:58,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:50:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:50:58,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:50:58,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:50:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:50:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:50:58,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:50:58,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:50:58,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:50:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:50:58,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:50:58,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:50:58,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 10:50:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:50:58,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:50:58,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:50:58,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 10:50:58,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:50:58,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:50:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:50:58,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:50:58,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:50:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:58,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:50:58,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:50:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 10:50:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 10:50:58,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:50:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 10:50:58,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:50:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 10:50:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:50:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:50:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:50:58,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 10:50:58,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:50:58,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 10:50:58,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:50:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:50:58,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:50:58,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:50:58,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:50:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:50:58,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:50:58,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 10:50:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 10:50:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:58,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:50:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:50:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 10:50:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:50:58,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:50:58,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:50:58,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:50:58,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:50:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:50:58,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:50:58,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:50:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:50:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:50:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:50:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:50:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 10:50:58,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865216318] [2020-09-25 10:50:58,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:50:58,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 10:50:58,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178146740] [2020-09-25 10:50:58,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:50:58,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:50:58,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:50:58,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:50:58,929 INFO L87 Difference]: Start difference. First operand 489 states and 565 transitions. Second operand 13 states. [2020-09-25 10:50:59,935 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:51:01,159 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:01,503 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:51:01,858 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 10:51:02,295 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:02,686 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:51:03,032 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:51:04,730 INFO L93 Difference]: Finished difference Result 1318 states and 1716 transitions. [2020-09-25 10:51:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 10:51:04,731 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-09-25 10:51:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:51:04,746 INFO L225 Difference]: With dead ends: 1318 [2020-09-25 10:51:04,747 INFO L226 Difference]: Without dead ends: 939 [2020-09-25 10:51:04,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=267, Invalid=993, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 10:51:04,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-09-25 10:51:04,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 485. [2020-09-25 10:51:04,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-09-25 10:51:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 547 transitions. [2020-09-25 10:51:04,862 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 547 transitions. Word has length 219 [2020-09-25 10:51:04,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:51:04,864 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 547 transitions. [2020-09-25 10:51:04,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:51:04,864 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 547 transitions. [2020-09-25 10:51:04,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 10:51:04,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:04,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:51:04,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:51:04,869 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:04,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1809078841, now seen corresponding path program 1 times [2020-09-25 10:51:04,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:04,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536182402] [2020-09-25 10:51:04,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:04,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:05,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:05,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 10:51:05,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:05,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 806 [2020-09-25 10:51:05,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:05,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:05,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 10:51:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:51:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,019 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:51:06,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:51:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:51:06,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 10:51:06,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:51:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:06,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:51:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:51:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:06,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:51:06,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:51:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:06,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:06,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:51:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:06,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:51:06,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:51:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:51:06,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:06,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:51:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:06,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:06,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:51:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 10:51:06,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 10:51:06,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:06,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 10:51:06,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:51:06,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:51:06,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 10:51:06,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:51:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:51:06,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:51:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:51:06,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:51:06,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:51:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:06,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:51:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:06,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:06,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 10:51:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 10:51:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:06,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:06,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 10:51:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:06,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:06,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:06,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:06,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:06,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:06,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:06,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:06,479 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 10:51:06,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536182402] [2020-09-25 10:51:06,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:51:06,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:51:06,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465714324] [2020-09-25 10:51:06,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:51:06,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:51:06,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:51:06,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:51:06,483 INFO L87 Difference]: Start difference. First operand 485 states and 547 transitions. Second operand 10 states. [2020-09-25 10:51:07,795 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:08,164 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:51:08,490 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:08,831 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:51:09,130 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:10,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:51:10,043 INFO L93 Difference]: Finished difference Result 1216 states and 1568 transitions. [2020-09-25 10:51:10,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 10:51:10,044 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 10:51:10,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:51:10,051 INFO L225 Difference]: With dead ends: 1216 [2020-09-25 10:51:10,051 INFO L226 Difference]: Without dead ends: 841 [2020-09-25 10:51:10,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:51:10,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2020-09-25 10:51:10,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 497. [2020-09-25 10:51:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-09-25 10:51:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 559 transitions. [2020-09-25 10:51:10,127 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 559 transitions. Word has length 194 [2020-09-25 10:51:10,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:51:10,127 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 559 transitions. [2020-09-25 10:51:10,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:51:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 559 transitions. [2020-09-25 10:51:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 10:51:10,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:10,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:51:10,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:51:10,131 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:10,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:10,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1600730070, now seen corresponding path program 1 times [2020-09-25 10:51:10,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:10,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939170671] [2020-09-25 10:51:10,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:10,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 10:51:11,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1453 [2020-09-25 10:51:11,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:51:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:51:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:51:11,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:11,951 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:51:11,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:51:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:51:12,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 10:51:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:51:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:51:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:12,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:12,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:51:12,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:51:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:12,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:12,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:12,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:51:12,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:51:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:12,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:51:12,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:12,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:51:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:12,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:12,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:12,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:51:12,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:51:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:51:12,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:51:12,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:51:12,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:51:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:12,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:12,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:51:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:51:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 10:51:12,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:51:12,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 10:51:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 10:51:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:51:12,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:51:12,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:51:12,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:51:12,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:51:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:51:12,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:12,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:51:12,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:51:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:12,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:12,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:12,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:12,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:51:12,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 10:51:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:12,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:12,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:12,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:12,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 10:51:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:12,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:12,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:12,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:12,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:12,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:12,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:12,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:12,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:12,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:51:12,485 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 10:51:12,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939170671] [2020-09-25 10:51:12,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:51:12,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 10:51:12,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576691505] [2020-09-25 10:51:12,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:51:12,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:51:12,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:51:12,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:51:12,487 INFO L87 Difference]: Start difference. First operand 497 states and 559 transitions. Second operand 9 states. [2020-09-25 10:51:13,071 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:51:13,717 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:51:15,966 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186