/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_spec2_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:29:47,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:29:47,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:29:47,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:29:47,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:29:47,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:29:47,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:29:47,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:29:47,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:29:47,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:29:47,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:29:47,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:29:47,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:29:47,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:29:47,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:29:47,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:29:47,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:29:47,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:29:47,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:29:47,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:29:47,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:29:47,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:29:47,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:29:47,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:29:47,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:29:47,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:29:47,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:29:47,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:29:47,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:29:47,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:29:47,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:29:47,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:29:47,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:29:47,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:29:47,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:29:47,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:29:47,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:29:47,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:29:47,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:29:47,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:29:47,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:29:47,777 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 07:29:47,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:29:47,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:29:47,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:29:47,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:29:47,813 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:29:47,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:29:47,814 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:29:47,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:29:47,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:29:47,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:29:47,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:29:47,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:29:47,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:29:47,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:29:47,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:29:47,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:29:47,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:29:47,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:29:47,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:29:47,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:29:47,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:29:47,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:29:47,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:29:47,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:29:47,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:29:47,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:29:47,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:29:47,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:29:47,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:29:47,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:29:48,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:29:48,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:29:48,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:29:48,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:29:48,283 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:29:48,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2020-09-25 07:29:48,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f8c941a3/2cdec7d4d92d46ab8ff44b3a9fbb5d9e/FLAG1e28891ff [2020-09-25 07:29:48,978 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:29:48,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2020-09-25 07:29:48,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f8c941a3/2cdec7d4d92d46ab8ff44b3a9fbb5d9e/FLAG1e28891ff [2020-09-25 07:29:49,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f8c941a3/2cdec7d4d92d46ab8ff44b3a9fbb5d9e [2020-09-25 07:29:49,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:29:49,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:29:49,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:29:49,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:29:49,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:29:49,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:29:49" (1/1) ... [2020-09-25 07:29:49,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c6eff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:49, skipping insertion in model container [2020-09-25 07:29:49,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:29:49" (1/1) ... [2020-09-25 07:29:49,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:29:49,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:29:49,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:29:49,877 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:29:49,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:29:50,004 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:29:50,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50 WrapperNode [2020-09-25 07:29:50,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:29:50,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:29:50,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:29:50,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:29:50,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (1/1) ... [2020-09-25 07:29:50,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (1/1) ... [2020-09-25 07:29:50,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (1/1) ... [2020-09-25 07:29:50,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (1/1) ... [2020-09-25 07:29:50,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (1/1) ... [2020-09-25 07:29:50,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (1/1) ... [2020-09-25 07:29:50,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (1/1) ... [2020-09-25 07:29:50,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:29:50,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:29:50,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:29:50,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:29:50,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (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 07:29:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:29:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:29:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:29:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:29:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:29:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:29:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:29:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:29:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:29:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:29:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:29:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:29:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:29:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:29:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:29:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:29:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:29:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:29:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:29:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:29:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:29:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:29:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:29:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:29:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:29:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:29:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:29:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:29:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:29:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:29:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:29:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:29:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:29:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:29:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:29:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:29:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:29:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:29:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:29:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:29:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:29:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:29:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:29:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:29:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:29:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:29:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:29:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:29:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:29:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:29:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:29:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:29:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:29:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:29:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:29:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:29:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:29:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:29:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:29:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:29:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:29:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:29:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:29:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:29:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:29:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:29:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:29:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:29:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:29:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:29:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:29:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:29:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:29:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:29:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:29:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:29:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:29:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:29:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:29:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:29:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:29:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:29:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:29:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:29:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:29:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:29:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:29:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:29:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:29:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:29:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:29:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:29:51,372 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:29:51,372 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:29:51,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:29:51 BoogieIcfgContainer [2020-09-25 07:29:51,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:29:51,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:29:51,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:29:51,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:29:51,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:29:49" (1/3) ... [2020-09-25 07:29:51,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c45dd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:29:51, skipping insertion in model container [2020-09-25 07:29:51,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:50" (2/3) ... [2020-09-25 07:29:51,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c45dd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:29:51, skipping insertion in model container [2020-09-25 07:29:51,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:29:51" (3/3) ... [2020-09-25 07:29:51,389 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2020-09-25 07:29:51,400 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:29:51,412 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:29:51,433 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:29:51,466 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:29:51,466 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:29:51,466 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:29:51,466 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:29:51,466 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:29:51,467 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:29:51,467 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:29:51,467 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:29:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 07:29:51,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:29:51,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:51,516 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] [2020-09-25 07:29:51,517 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:51,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:51,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1187069653, now seen corresponding path program 1 times [2020-09-25 07:29:51,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:51,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092346902] [2020-09-25 07:29:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:54,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:56,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:56,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:29:56,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:29:56,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:56,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:29:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:56,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:29:57,472 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:57,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 07:29:57,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:57,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:57,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:57,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:57,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:57,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:57,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:57,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:57,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:57,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:57,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:57,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:57,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:57,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:29:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:57,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:57,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:29:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:57,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:57,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:57,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:57,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:57,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:57,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:57,839 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 07:29:57,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092346902] [2020-09-25 07:29:57,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:57,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:29:57,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278759629] [2020-09-25 07:29:57,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:29:57,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:57,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:29:57,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:57,880 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 4 states. [2020-09-25 07:29:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:59,640 INFO L93 Difference]: Finished difference Result 480 states and 569 transitions. [2020-09-25 07:29:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:29:59,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:29:59,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:59,670 INFO L225 Difference]: With dead ends: 480 [2020-09-25 07:29:59,670 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 07:29:59,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:59,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 07:29:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2020-09-25 07:29:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 07:29:59,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-25 07:29:59,802 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 148 [2020-09-25 07:29:59,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:59,803 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-25 07:29:59,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:29:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-25 07:29:59,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:29:59,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:59,808 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] [2020-09-25 07:29:59,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:29:59,809 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:59,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:59,809 INFO L82 PathProgramCache]: Analyzing trace with hash 988149189, now seen corresponding path program 1 times [2020-09-25 07:29:59,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:59,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190160321] [2020-09-25 07:29:59,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:59,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:03,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:04,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:04,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:30:04,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:04,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 07:30:04,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:04,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 07:30:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 07:30:04,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,216 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:05,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 07:30:05,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 07:30:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:05,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:05,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:05,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:05,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:05,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:05,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:30:05,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:05,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:05,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:05,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:05,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:05,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:05,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:05,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:30:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:30:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:05,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:05,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:05,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:05,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:05,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:05,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:05,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:05,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:05,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:05,659 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 07:30:05,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190160321] [2020-09-25 07:30:05,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:05,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:30:05,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472452959] [2020-09-25 07:30:05,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:30:05,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:05,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:30:05,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:30:05,663 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 5 states. [2020-09-25 07:30:06,260 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:07,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:07,168 INFO L93 Difference]: Finished difference Result 450 states and 520 transitions. [2020-09-25 07:30:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:30:07,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:30:07,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:07,175 INFO L225 Difference]: With dead ends: 450 [2020-09-25 07:30:07,175 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 07:30:07,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:07,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 07:30:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2020-09-25 07:30:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 07:30:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 281 transitions. [2020-09-25 07:30:07,249 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 281 transitions. Word has length 149 [2020-09-25 07:30:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:07,252 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 281 transitions. [2020-09-25 07:30:07,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:30:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 281 transitions. [2020-09-25 07:30:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 07:30:07,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:07,260 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] [2020-09-25 07:30:07,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:30:07,260 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:07,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:07,261 INFO L82 PathProgramCache]: Analyzing trace with hash -799133163, now seen corresponding path program 1 times [2020-09-25 07:30:07,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:07,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467335192] [2020-09-25 07:30:07,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:09,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:10,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:10,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 07:30:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:30:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 07:30:12,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:30:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:30:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:30:12,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,674 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:12,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:12,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 07:30:12,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:12,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:30:12,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:12,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:12,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:12,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:12,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:12,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:12,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:12,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:12,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:12,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:12,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:30:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:30:12,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:30:12,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:30:12,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:30:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:30:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:30:12,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:30:12,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:30:12,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:30:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:30:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:30:12,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:12,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:12,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:12,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:12,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:12,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:30:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:12,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:12,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 07:30:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:12,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:12,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:12,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:12,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:12,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:12,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:12,995 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 07:30:12,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467335192] [2020-09-25 07:30:12,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:12,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:30:12,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967325060] [2020-09-25 07:30:12,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:30:12,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:13,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:30:13,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:13,002 INFO L87 Difference]: Start difference. First operand 259 states and 281 transitions. Second operand 7 states. [2020-09-25 07:30:13,572 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:15,004 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:16,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:16,173 INFO L93 Difference]: Finished difference Result 623 states and 750 transitions. [2020-09-25 07:30:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:30:16,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-25 07:30:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:16,179 INFO L225 Difference]: With dead ends: 623 [2020-09-25 07:30:16,180 INFO L226 Difference]: Without dead ends: 479 [2020-09-25 07:30:16,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:30:16,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-09-25 07:30:16,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 390. [2020-09-25 07:30:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 07:30:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 436 transitions. [2020-09-25 07:30:16,241 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 436 transitions. Word has length 171 [2020-09-25 07:30:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:16,242 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 436 transitions. [2020-09-25 07:30:16,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:30:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 436 transitions. [2020-09-25 07:30:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 07:30:16,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:16,245 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] [2020-09-25 07:30:16,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:30:16,245 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:16,246 INFO L82 PathProgramCache]: Analyzing trace with hash -418019418, now seen corresponding path program 1 times [2020-09-25 07:30:16,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:16,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737737835] [2020-09-25 07:30:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:17,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:17,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:19,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 07:30:21,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 07:30:21,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:30:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:30:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,582 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:21,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:21,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 07:30:21,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:21,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:21,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:21,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:21,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:21,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:21,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:21,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:21,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:21,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:21,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 07:30:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:30:21,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:30:21,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 07:30:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:30:21,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:30:21,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:30:21,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:30:21,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:21,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:30:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:30:21,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:30:21,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:21,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:30:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:21,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:21,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 07:30:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:21,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:21,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:21,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 07:30:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:21,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:21,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:21,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:21,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:21,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:21,994 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 07:30:21,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737737835] [2020-09-25 07:30:21,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:21,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:30:21,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210336603] [2020-09-25 07:30:21,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:30:21,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:21,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:30:21,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:30:21,998 INFO L87 Difference]: Start difference. First operand 390 states and 436 transitions. Second operand 6 states. [2020-09-25 07:30:22,601 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:23,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:23,737 INFO L93 Difference]: Finished difference Result 643 states and 730 transitions. [2020-09-25 07:30:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:30:23,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-09-25 07:30:23,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:23,741 INFO L225 Difference]: With dead ends: 643 [2020-09-25 07:30:23,741 INFO L226 Difference]: Without dead ends: 428 [2020-09-25 07:30:23,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:30:23,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-25 07:30:23,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 363. [2020-09-25 07:30:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-25 07:30:23,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 393 transitions. [2020-09-25 07:30:23,791 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 393 transitions. Word has length 186 [2020-09-25 07:30:23,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:23,791 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 393 transitions. [2020-09-25 07:30:23,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:30:23,792 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 393 transitions. [2020-09-25 07:30:23,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 07:30:23,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:23,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:30:23,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:30:23,795 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:23,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1997051392, now seen corresponding path program 1 times [2020-09-25 07:30:23,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:23,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328511308] [2020-09-25 07:30:23,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:24,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:24,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:27,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:28,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:28,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 07:30:28,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:28,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 07:30:28,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:28,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:28,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:30:28,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:30:28,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 07:30:28,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:29,231 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:29,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:29,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:30:29,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:29,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:29,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:29,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:29,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:29,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:30:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:29,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:29,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:29,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:29,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:30:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:30:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:30:29,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:30:29,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 07:30:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:30:29,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:30:29,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:30:29,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:30:29,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:30:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:30:29,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:29,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:29,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:30:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:29,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:29,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 07:30:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:29,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:29,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 07:30:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:29,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:29,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:29,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:29,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:29,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:29,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:29,651 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 07:30:29,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328511308] [2020-09-25 07:30:29,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:29,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:30:29,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441677599] [2020-09-25 07:30:29,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:30:29,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:29,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:30:29,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:30:29,654 INFO L87 Difference]: Start difference. First operand 363 states and 393 transitions. Second operand 6 states. [2020-09-25 07:30:30,157 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:32,329 INFO L93 Difference]: Finished difference Result 768 states and 920 transitions. [2020-09-25 07:30:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:30:32,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-09-25 07:30:32,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:32,335 INFO L225 Difference]: With dead ends: 768 [2020-09-25 07:30:32,335 INFO L226 Difference]: Without dead ends: 765 [2020-09-25 07:30:32,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:30:32,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-09-25 07:30:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 619. [2020-09-25 07:30:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-09-25 07:30:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 690 transitions. [2020-09-25 07:30:32,432 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 690 transitions. Word has length 195 [2020-09-25 07:30:32,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:32,433 INFO L479 AbstractCegarLoop]: Abstraction has 619 states and 690 transitions. [2020-09-25 07:30:32,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:30:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 690 transitions. [2020-09-25 07:30:32,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-25 07:30:32,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:32,439 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 07:30:32,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:30:32,440 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:32,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:32,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1890955091, now seen corresponding path program 1 times [2020-09-25 07:30:32,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:32,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119650432] [2020-09-25 07:30:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:32,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:32,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:32,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:33,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:34,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking...