/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:15:23,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:15:23,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:15:23,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:15:23,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:15:23,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:15:23,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:15:23,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:15:23,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:15:23,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:15:23,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:15:23,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:15:23,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:15:23,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:15:23,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:15:23,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:15:23,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:15:23,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:15:23,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:15:23,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:15:23,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:15:23,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:15:23,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:15:23,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:15:23,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:15:23,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:15:23,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:15:23,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:15:23,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:15:23,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:15:23,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:15:23,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:15:23,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:15:23,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:15:23,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:15:23,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:15:23,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:15:23,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:15:23,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:15:23,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:15:23,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:15:23,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:15:23,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:15:23,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:15:23,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:15:23,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:15:23,190 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:15:23,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:15:23,190 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:15:23,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:15:23,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:15:23,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:15:23,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:15:23,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:15:23,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:15:23,192 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:15:23,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:15:23,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:15:23,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:15:23,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:15:23,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:15:23,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:15:23,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:15:23,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:15:23,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:15:23,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:15:23,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:15:23,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:15:23,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:15:23,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:15:23,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:15:23,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:15:23,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:15:23,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:15:23,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:15:23,685 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:15:23,685 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:15:23,686 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-25 13:15:23,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c7e28567/03d413063c714eae847248487972a020/FLAGb3deae755 [2020-09-25 13:15:24,395 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:15:24,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-25 13:15:24,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c7e28567/03d413063c714eae847248487972a020/FLAGb3deae755 [2020-09-25 13:15:24,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c7e28567/03d413063c714eae847248487972a020 [2020-09-25 13:15:24,678 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:15:24,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:15:24,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:15:24,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:15:24,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:15:24,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:15:24" (1/1) ... [2020-09-25 13:15:24,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288b8053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:24, skipping insertion in model container [2020-09-25 13:15:24,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:15:24" (1/1) ... [2020-09-25 13:15:24,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:15:24,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:15:25,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:15:25,332 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:15:25,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:15:25,467 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:15:25,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25 WrapperNode [2020-09-25 13:15:25,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:15:25,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:15:25,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:15:25,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:15:25,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... [2020-09-25 13:15:25,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... [2020-09-25 13:15:25,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... [2020-09-25 13:15:25,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... [2020-09-25 13:15:25,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... [2020-09-25 13:15:25,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... [2020-09-25 13:15:25,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... [2020-09-25 13:15:25,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:15:25,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:15:25,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:15:25,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:15:25,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:15:25,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:15:25,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:15:25,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:15:25,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:15:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:15:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:15:25,727 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:15:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:15:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:15:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:15:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:15:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:15:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:15:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:15:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:15:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:15:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:15:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:15:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:15:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:15:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:15:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:15:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:15:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:15:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:15:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:15:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:15:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:15:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:15:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:15:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:15:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:15:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:15:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:15:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:15:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:15:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:15:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:15:25,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:15:25,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:15:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:15:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:15:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:15:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:15:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:15:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:15:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:15:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:15:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:15:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:15:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:15:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:15:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:15:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:15:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:15:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:15:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:15:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:15:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:15:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:15:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:15:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:15:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:15:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:15:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:15:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:15:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:15:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:15:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:15:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:15:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:15:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:15:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:15:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:15:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:15:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:15:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:15:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:15:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:15:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:15:26,932 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:15:26,932 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:15:26,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:15:26 BoogieIcfgContainer [2020-09-25 13:15:26,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:15:26,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:15:26,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:15:26,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:15:26,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:15:24" (1/3) ... [2020-09-25 13:15:26,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a7292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:15:26, skipping insertion in model container [2020-09-25 13:15:26,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:25" (2/3) ... [2020-09-25 13:15:26,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a7292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:15:26, skipping insertion in model container [2020-09-25 13:15:26,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:15:26" (3/3) ... [2020-09-25 13:15:26,950 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-09-25 13:15:26,962 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:15:26,976 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:15:27,001 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:15:27,038 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:15:27,039 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:15:27,039 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:15:27,039 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:15:27,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:15:27,039 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:15:27,040 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:15:27,040 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:15:27,072 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 13:15:27,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:15:27,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:27,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:27,094 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:27,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:27,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1194640378, now seen corresponding path program 1 times [2020-09-25 13:15:27,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:27,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750004660] [2020-09-25 13:15:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:27,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:27,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:32,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:32,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:15:32,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:15:32,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:15:32,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:32,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:15:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 13:15:32,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:15:33,049 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:33,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:33,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:33,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:33,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:33,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 13:15:33,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:33,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:33,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:33,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:33,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:15:33,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:33,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:33,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:33,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:33,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:33,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:33,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:33,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:33,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:33,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:33,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:33,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:33,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:33,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:33,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:33,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:33,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:33,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:33,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:33,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:33,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:33,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:33,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:33,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:33,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:33,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:15:33,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:33,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:33,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:33,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:33,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:33,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:33,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:33,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:33,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:33,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:15:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:33,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:33,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:33,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:33,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:33,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:33,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:33,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:33,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:33,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:15:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:33,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:33,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:33,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:33,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:33,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:33,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:33,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750004660] [2020-09-25 13:15:33,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:33,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:15:33,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882188061] [2020-09-25 13:15:33,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:15:33,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:33,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:15:33,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:15:33,714 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2020-09-25 13:15:34,368 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:35,825 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-09-25 13:15:35,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:15:35,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:15:35,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:35,851 INFO L225 Difference]: With dead ends: 489 [2020-09-25 13:15:35,851 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 13:15:35,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:15:35,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 13:15:36,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 13:15:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 13:15:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-09-25 13:15:36,029 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 142 [2020-09-25 13:15:36,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:36,031 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-09-25 13:15:36,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:15:36,032 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-09-25 13:15:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 13:15:36,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:36,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:36,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:15:36,046 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:36,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:36,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1452522798, now seen corresponding path program 1 times [2020-09-25 13:15:36,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:36,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798463214] [2020-09-25 13:15:36,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:36,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:36,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:36,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:38,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:39,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:40,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:41,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:41,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:15:41,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:15:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 13:15:41,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:41,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:15:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:15:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 13:15:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:41,552 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:41,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:41,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:41,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:41,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:41,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 13:15:41,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:41,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:41,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:41,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:41,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:15:41,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:41,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:41,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:41,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:41,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:41,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:41,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:41,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:41,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:41,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:41,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:41,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:41,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:41,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:41,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:41,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:41,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:41,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:41,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:41,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:41,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:41,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:41,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:41,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:41,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:41,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:41,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:41,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:41,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:41,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:41,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:41,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:41,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:41,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:41,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:41,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:41,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:41,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:41,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:41,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:41,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:41,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:41,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:42,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 13:15:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:42,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:42,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:42,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:42,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 13:15:42,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:42,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:15:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:42,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:42,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:42,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:42,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:42,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:42,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:42,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:15:42,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:42,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:42,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:42,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:42,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:42,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:42,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 13:15:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:42,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:42,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:42,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:42,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:42,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:42,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:42,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:42,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:15:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:42,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:42,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:42,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:42,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:42,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:42,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:42,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:42,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798463214] [2020-09-25 13:15:42,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:42,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:15:42,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770123443] [2020-09-25 13:15:42,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:15:42,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:42,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:15:42,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:15:42,154 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 9 states. [2020-09-25 13:15:42,728 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:44,148 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:44,472 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:44,883 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:45,305 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:45,604 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:45,911 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:46,218 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:47,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:47,814 INFO L93 Difference]: Finished difference Result 651 states and 795 transitions. [2020-09-25 13:15:47,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:15:47,815 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-09-25 13:15:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:47,823 INFO L225 Difference]: With dead ends: 651 [2020-09-25 13:15:47,823 INFO L226 Difference]: Without dead ends: 500 [2020-09-25 13:15:47,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:15:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-09-25 13:15:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 404. [2020-09-25 13:15:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-09-25 13:15:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 453 transitions. [2020-09-25 13:15:47,912 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 453 transitions. Word has length 165 [2020-09-25 13:15:47,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:47,913 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 453 transitions. [2020-09-25 13:15:47,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:15:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 453 transitions. [2020-09-25 13:15:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 13:15:47,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:47,917 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] [2020-09-25 13:15:47,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:15:47,917 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:47,918 INFO L82 PathProgramCache]: Analyzing trace with hash -756649428, now seen corresponding path program 1 times [2020-09-25 13:15:47,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:47,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192932115] [2020-09-25 13:15:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:48,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:48,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:52,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:52,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:52,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 13:15:52,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:52,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 13:15:52,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:52,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:15:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:15:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 13:15:52,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,244 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:53,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:53,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 13:15:53,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:15:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:53,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:53,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:53,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:53,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:53,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:53,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:53,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:53,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:53,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 13:15:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:53,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:53,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:15:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:53,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:15:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:53,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:53,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:15:53,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:15:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:15:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:53,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:53,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:15:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:15:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:53,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:53,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 13:15:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:53,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:53,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:53,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 13:15:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:53,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:53,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:53,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:53,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:53,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:53,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192932115] [2020-09-25 13:15:53,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:53,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:15:53,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564143549] [2020-09-25 13:15:53,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:15:53,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:53,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:15:53,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:15:53,792 INFO L87 Difference]: Start difference. First operand 404 states and 453 transitions. Second operand 7 states. [2020-09-25 13:15:54,504 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:55,749 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:57,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:57,865 INFO L93 Difference]: Finished difference Result 971 states and 1235 transitions. [2020-09-25 13:15:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:15:57,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 13:15:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:57,872 INFO L225 Difference]: With dead ends: 971 [2020-09-25 13:15:57,872 INFO L226 Difference]: Without dead ends: 677 [2020-09-25 13:15:57,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:15:57,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-09-25 13:15:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 557. [2020-09-25 13:15:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-09-25 13:15:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 644 transitions. [2020-09-25 13:15:57,974 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 644 transitions. Word has length 170 [2020-09-25 13:15:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:57,974 INFO L479 AbstractCegarLoop]: Abstraction has 557 states and 644 transitions. [2020-09-25 13:15:57,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:15:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 644 transitions. [2020-09-25 13:15:57,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 13:15:57,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:57,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:57,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:15:57,979 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:57,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:57,979 INFO L82 PathProgramCache]: Analyzing trace with hash 349475179, now seen corresponding path program 1 times [2020-09-25 13:15:57,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:57,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149250284] [2020-09-25 13:15:57,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:58,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:58,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:59,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:00,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:00,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:03,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:03,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 13:16:03,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:16:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 13:16:03,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:03,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:16:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:16:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 13:16:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:03,519 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:16:03,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:16:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:03,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:03,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:03,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:16:03,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:03,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 13:16:03,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:03,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:03,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:16:03,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:03,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:16:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:03,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:03,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:03,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:03,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:16:03,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:03,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:03,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:03,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:16:03,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:03,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:16:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:03,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:03,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:03,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:03,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:03,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:16:03,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:03,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:16:03,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:03,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:16:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:03,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:03,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:03,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:03,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:03,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:16:03,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:03,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:03,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:16:03,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:03,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:16:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:03,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:03,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:03,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:03,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:03,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:16:03,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:03,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:03,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:03,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:03,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:16:03,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:03,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 13:16:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:03,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:03,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:03,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:16:03,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:03,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:16:03,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:03,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:03,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:16:03,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:16:03,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:16:03,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:04,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:16:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:04,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:04,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 13:16:04,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 13:16:04,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:04,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 13:16:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:16:04,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:04,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:04,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:04,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:16:04,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:04,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:16:04,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:04,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:04,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:16:04,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:04,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:04,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:04,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:16:04,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:04,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:16:04,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:04,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:04,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:16:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:04,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:16:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:04,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:04,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:16:04,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:16:04,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:04,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:16:04,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:16:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:04,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:04,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:04,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:04,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:16:04,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:04,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:04,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:04,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:16:04,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:04,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 13:16:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:04,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:04,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:04,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:04,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:04,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:16:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:16:04,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 13:16:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:04,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:04,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:04,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:16:04,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:04,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:04,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:04,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:16:04,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:04,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:16:04,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149250284] [2020-09-25 13:16:04,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:16:04,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:16:04,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637121162] [2020-09-25 13:16:04,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:16:04,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:16:04,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:16:04,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:16:04,279 INFO L87 Difference]: Start difference. First operand 557 states and 644 transitions. Second operand 9 states. [2020-09-25 13:16:04,992 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:16:05,722 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:16:07,213 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:16:07,836 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:16:11,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:16:11,904 INFO L93 Difference]: Finished difference Result 1784 states and 2342 transitions. [2020-09-25 13:16:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 13:16:11,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2020-09-25 13:16:11,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:16:11,921 INFO L225 Difference]: With dead ends: 1784 [2020-09-25 13:16:11,921 INFO L226 Difference]: Without dead ends: 1496 [2020-09-25 13:16:11,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2020-09-25 13:16:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states.