/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=BIGGEST --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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:17:18,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:17:18,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:17:18,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:17:18,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:17:18,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:17:18,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:17:18,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:17:18,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:17:18,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:17:18,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:17:18,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:17:18,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:17:18,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:17:18,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:17:18,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:17:18,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:17:18,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:17:18,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:17:18,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:17:18,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:17:18,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:17:18,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:17:18,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:17:18,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:17:18,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:17:18,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:17:18,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:17:18,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:17:18,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:17:18,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:17:18,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:17:18,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:17:18,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:17:18,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:17:18,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:17:18,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:17:18,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:17:18,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:17:18,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:17:18,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:17:18,748 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 [2020-09-24 20:17:18,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:17:18,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:17:18,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:17:18,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:17:18,784 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:17:18,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:17:18,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:17:18,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:17:18,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:17:18,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:17:18,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:17:18,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:17:18,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:17:18,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:17:18,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:17:18,786 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:17:18,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:17:18,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:17:18,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:17:18,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:17:18,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:17:18,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:17:18,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:17:18,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:17:18,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:17:18,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:17:18,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:17:18,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:17:18,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:17:18,789 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:17:19,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:17:19,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:17:19,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:17:19,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:17:19,284 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:17:19,285 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 20:17:19,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19c5e4d70/2e6a9093660b46ebbfb752e218dc9961/FLAG4190d854e [2020-09-24 20:17:19,958 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:17:19,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 20:17:19,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19c5e4d70/2e6a9093660b46ebbfb752e218dc9961/FLAG4190d854e [2020-09-24 20:17:20,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19c5e4d70/2e6a9093660b46ebbfb752e218dc9961 [2020-09-24 20:17:20,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:17:20,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:17:20,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:20,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:17:20,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:17:20,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:20" (1/1) ... [2020-09-24 20:17:20,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:20, skipping insertion in model container [2020-09-24 20:17:20,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:20" (1/1) ... [2020-09-24 20:17:20,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:17:20,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:17:20,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:20,921 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:17:21,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:21,082 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:17:21,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21 WrapperNode [2020-09-24 20:17:21,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:21,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:17:21,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:17:21,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:17:21,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (1/1) ... [2020-09-24 20:17:21,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (1/1) ... [2020-09-24 20:17:21,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (1/1) ... [2020-09-24 20:17:21,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (1/1) ... [2020-09-24 20:17:21,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (1/1) ... [2020-09-24 20:17:21,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (1/1) ... [2020-09-24 20:17:21,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (1/1) ... [2020-09-24 20:17:21,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:17:21,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:17:21,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:17:21,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:17:21,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (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 [2020-09-24 20:17:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:17:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:17:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:17:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:17:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:17:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:17:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:17:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:17:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:17:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:17:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:17:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:17:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:17:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:17:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:17:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:17:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:17:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:17:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:17:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:17:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:17:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:17:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:17:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:17:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:17:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:17:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:17:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:17:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:17:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:17:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:17:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:17:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:17:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:17:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:17:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:17:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:17:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:17:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:17:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:17:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:17:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:17:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:17:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:17:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:17:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:17:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:17:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:17:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:17:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:17:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:17:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:17:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:17:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:17:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:17:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:17:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:17:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:17:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:17:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:17:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:17:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:17:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:17:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:17:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:17:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:17:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:17:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:17:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:17:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:17:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:17:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:17:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:17:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:17:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:17:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:17:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:17:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:17:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:17:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:17:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:17:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:17:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:17:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:17:22,665 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:17:22,665 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:17:22,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:22 BoogieIcfgContainer [2020-09-24 20:17:22,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:17:22,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:17:22,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:17:22,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:17:22,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:17:20" (1/3) ... [2020-09-24 20:17:22,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53857c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:22, skipping insertion in model container [2020-09-24 20:17:22,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:21" (2/3) ... [2020-09-24 20:17:22,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53857c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:22, skipping insertion in model container [2020-09-24 20:17:22,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:22" (3/3) ... [2020-09-24 20:17:22,684 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-24 20:17:22,697 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:17:22,709 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:17:22,734 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:17:22,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:17:22,770 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:17:22,770 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:17:22,770 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:17:22,770 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:17:22,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:17:22,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:17:22,771 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:17:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 20:17:22,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:17:22,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:22,824 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] [2020-09-24 20:17:22,825 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:22,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:22,834 INFO L82 PathProgramCache]: Analyzing trace with hash 627708892, now seen corresponding path program 1 times [2020-09-24 20:17:22,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:22,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922782848] [2020-09-24 20:17:22,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:23,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:25,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:26,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:28,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:28,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:17:28,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:17:28,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-24 20:17:28,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:28,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:17:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:17:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:17:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:17:28,770 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:28,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:28,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:29,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:29,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:29,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:29,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-24 20:17:29,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:29,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:29,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:29,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:17:29,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:29,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:29,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:29,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:29,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:29,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:29,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:17:29,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:29,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:17:29,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:29,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:29,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:29,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:17:29,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:29,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:29,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:29,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:29,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:17:29,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:29,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:29,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:29,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:29,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:29,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:17:29,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:29,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:17:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:29,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:29,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:29,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:17:29,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:29,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:17:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:29,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:29,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:29,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:29,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:29,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:29,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:17:29,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922782848] [2020-09-24 20:17:29,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:29,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:17:29,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849539007] [2020-09-24 20:17:29,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:17:29,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:29,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:17:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:17:29,573 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 8 states. [2020-09-24 20:17:30,320 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:31,477 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:31,844 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:32,253 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:32,609 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:32,930 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:33,201 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:33,458 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:35,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:35,581 INFO L93 Difference]: Finished difference Result 661 states and 811 transitions. [2020-09-24 20:17:35,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:17:35,589 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:17:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:35,618 INFO L225 Difference]: With dead ends: 661 [2020-09-24 20:17:35,618 INFO L226 Difference]: Without dead ends: 456 [2020-09-24 20:17:35,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:17:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-24 20:17:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 412. [2020-09-24 20:17:35,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-24 20:17:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 464 transitions. [2020-09-24 20:17:35,786 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 464 transitions. Word has length 142 [2020-09-24 20:17:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:35,787 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 464 transitions. [2020-09-24 20:17:35,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:17:35,788 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 464 transitions. [2020-09-24 20:17:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:17:35,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:35,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:17:35,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:17:35,796 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:35,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1549705395, now seen corresponding path program 1 times [2020-09-24 20:17:35,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:35,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265659472] [2020-09-24 20:17:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:35,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:40,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:40,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:17:40,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:17:40,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:17:40,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:40,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:17:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:17:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 20:17:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:41,271 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:41,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:41,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-24 20:17:41,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:17:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:41,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:41,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:41,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:41,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:41,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:41,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:41,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:41,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:41,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:17:41,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:41,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:41,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:41,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:41,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:17:41,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:41,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:41,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:17:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:17:41,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:17:41,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:17:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:41,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:41,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 20:17:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:41,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:41,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:41,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:17:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:41,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:41,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:41,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:41,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:41,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:41,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:41,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:17:41,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265659472] [2020-09-24 20:17:41,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:41,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:17:41,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766557296] [2020-09-24 20:17:41,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:17:41,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:41,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:17:41,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:17:41,771 INFO L87 Difference]: Start difference. First operand 412 states and 464 transitions. Second operand 5 states. [2020-09-24 20:17:42,254 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:17:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:44,323 INFO L93 Difference]: Finished difference Result 899 states and 1121 transitions. [2020-09-24 20:17:44,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:17:44,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 20:17:44,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:44,336 INFO L225 Difference]: With dead ends: 899 [2020-09-24 20:17:44,336 INFO L226 Difference]: Without dead ends: 597 [2020-09-24 20:17:44,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:17:44,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-09-24 20:17:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 542. [2020-09-24 20:17:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-24 20:17:44,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 636 transitions. [2020-09-24 20:17:44,430 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 636 transitions. Word has length 148 [2020-09-24 20:17:44,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:44,431 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 636 transitions. [2020-09-24 20:17:44,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:17:44,431 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 636 transitions. [2020-09-24 20:17:44,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 20:17:44,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:44,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:17:44,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:17:44,435 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:44,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:44,436 INFO L82 PathProgramCache]: Analyzing trace with hash -132091282, now seen corresponding path program 1 times [2020-09-24 20:17:44,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:44,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549520288] [2020-09-24 20:17:44,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:44,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:44,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:46,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:49,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 20:17:49,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:17:49,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 20:17:49,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:17:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:17:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-24 20:17:49,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:49,854 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:49,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:49,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:50,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 20:17:50,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:17:50,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:50,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:50,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:50,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:50,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:50,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:50,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:17:50,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:50,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:50,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:50,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:50,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:50,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:17:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:17:50,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:17:50,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:17:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:17:50,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:17:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:17:50,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:17:50,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:17:50,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:50,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 20:17:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:50,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:17:50,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 20:17:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:50,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:50,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:50,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:17:50,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549520288] [2020-09-24 20:17:50,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:50,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:17:50,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389200587] [2020-09-24 20:17:50,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:17:50,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:50,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:17:50,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:17:50,377 INFO L87 Difference]: Start difference. First operand 542 states and 636 transitions. Second operand 13 states. [2020-09-24 20:17:50,995 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:51,903 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:52,255 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:52,657 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:53,042 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:17:53,395 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:54,540 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:54,847 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:55,270 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:57,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:57,741 INFO L93 Difference]: Finished difference Result 1289 states and 1820 transitions. [2020-09-24 20:17:57,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 20:17:57,741 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-09-24 20:17:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:57,751 INFO L225 Difference]: With dead ends: 1289 [2020-09-24 20:17:57,751 INFO L226 Difference]: Without dead ends: 1024 [2020-09-24 20:17:57,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2020-09-24 20:17:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2020-09-24 20:17:57,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 719. [2020-09-24 20:17:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-24 20:17:57,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 892 transitions. [2020-09-24 20:17:57,873 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 892 transitions. Word has length 161 [2020-09-24 20:17:57,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:57,874 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 892 transitions. [2020-09-24 20:17:57,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:17:57,874 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 892 transitions. [2020-09-24 20:17:57,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 20:17:57,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:57,880 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:17:57,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:17:57,880 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:57,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:57,880 INFO L82 PathProgramCache]: Analyzing trace with hash -2009748231, now seen corresponding path program 1 times [2020-09-24 20:17:57,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:57,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93838519] [2020-09-24 20:17:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:57,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:58,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:58,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:02,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:02,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 20:18:02,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:18:02,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 20:18:02,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:18:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:18:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 20:18:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,334 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:18:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:18:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:03,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:18:03,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 20:18:03,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:18:03,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:18:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:03,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:03,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:03,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:03,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:18:03,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:18:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:03,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:03,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:03,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:03,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:18:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:18:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:03,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:03,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:03,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:18:03,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:03,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:03,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:03,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:18:03,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:18:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:03,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:03,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:03,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:03,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:18:03,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 20:18:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:03,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 20:18:03,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:18:03,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 20:18:03,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:18:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:03,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:18:03,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:03,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 20:18:03,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:03,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:03,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:18:03,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:03,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:03,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:03,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:18:04,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 20:18:04,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:04,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:18:04,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:04,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:18:04,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 20:18:04,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:18:04,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:18:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:18:04,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:18:04,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:04,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:04,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:18:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:04,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:04,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:18:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:04,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 20:18:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:18:04,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:18:04,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:18:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:04,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:04,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:04,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-24 20:18:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:18:04,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:18:04,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:18:04,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 20:18:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:04,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:04,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 20:18:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:04,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:04,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:04,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:04,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:04,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 20:18:04,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93838519] [2020-09-24 20:18:04,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:18:04,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 20:18:04,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527304986] [2020-09-24 20:18:04,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:18:04,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:18:04,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:18:04,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:18:04,255 INFO L87 Difference]: Start difference. First operand 719 states and 892 transitions. Second operand 12 states. [2020-09-24 20:18:04,717 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:18:05,793 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:18:06,111 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:18:06,436 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:18:06,771 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189