/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:54:44,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:54:44,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:54:44,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:54:44,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:54:44,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:54:44,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:54:44,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:54:44,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:54:44,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:54:44,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:54:44,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:54:44,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:54:44,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:54:44,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:54:44,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:54:44,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:54:44,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:54:44,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:54:44,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:54:44,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:54:44,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:54:44,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:54:44,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:54:44,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:54:44,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:54:44,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:54:44,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:54:44,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:54:44,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:54:44,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:54:44,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:54:44,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:54:44,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:54:44,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:54:44,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:54:44,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:54:44,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:54:44,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:54:44,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:54:44,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:54:44,710 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 16:54:44,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:54:44,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:54:44,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:54:44,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:54:44,764 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:54:44,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:54:44,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:54:44,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:54:44,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:54:44,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:54:44,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:54:44,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:54:44,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:54:44,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:54:44,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:54:44,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:54:44,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:54:44,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:54:44,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:54:44,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:54:44,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:54:44,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:54:44,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:54:44,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:54:44,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:54:44,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:54:44,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:54:44,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:54:44,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:54:44,771 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;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;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;log-additional-information=true; [2020-09-24 16:54:45,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:54:45,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:54:45,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:54:45,239 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:54:45,239 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:54:45,240 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-24 16:54:45,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc6d31aa/1c7c392bcc1642999153ff5cda89e1c8/FLAG2ac284bcd [2020-09-24 16:54:45,899 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:54:45,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-24 16:54:45,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc6d31aa/1c7c392bcc1642999153ff5cda89e1c8/FLAG2ac284bcd [2020-09-24 16:54:46,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc6d31aa/1c7c392bcc1642999153ff5cda89e1c8 [2020-09-24 16:54:46,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:54:46,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:54:46,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:54:46,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:54:46,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:54:46,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:46,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46, skipping insertion in model container [2020-09-24 16:54:46,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:46,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:54:46,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:54:46,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:54:46,777 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:54:46,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:54:46,912 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:54:46,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46 WrapperNode [2020-09-24 16:54:46,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:54:46,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:54:46,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:54:46,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:54:46,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:46,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:46,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:46,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:46,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:47,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:47,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (1/1) ... [2020-09-24 16:54:47,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:54:47,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:54:47,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:54:47,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:54:47,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (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 16:54:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:54:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:54:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:54:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 16:54:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:54:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:54:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:54:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:54:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:54:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:54:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:54:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:54:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:54:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:54:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:54:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:54:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:54:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:54:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:54:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:54:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:54:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:54:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:54:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:54:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:54:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:54:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:54:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:54:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:54:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:54:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:54:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 16:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:54:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:54:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:54:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:54:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:54:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:54:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:54:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:54:48,381 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:54:48,381 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:54:48,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:48 BoogieIcfgContainer [2020-09-24 16:54:48,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:54:48,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:54:48,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:54:48,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:54:48,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:54:46" (1/3) ... [2020-09-24 16:54:48,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca50236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:48, skipping insertion in model container [2020-09-24 16:54:48,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:46" (2/3) ... [2020-09-24 16:54:48,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca50236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:48, skipping insertion in model container [2020-09-24 16:54:48,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:48" (3/3) ... [2020-09-24 16:54:48,397 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-09-24 16:54:48,408 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:54:48,422 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:54:48,444 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:54:48,474 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:54:48,474 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:54:48,474 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:54:48,475 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:54:48,475 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:54:48,475 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:54:48,475 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:54:48,475 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:54:48,502 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-09-24 16:54:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:54:48,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:54:48,521 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 16:54:48,522 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:54:48,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:54:48,528 INFO L82 PathProgramCache]: Analyzing trace with hash -769806534, now seen corresponding path program 1 times [2020-09-24 16:54:48,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:54:48,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569355615] [2020-09-24 16:54:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:54:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:54:49,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:50,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:51,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:56,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:09,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:09,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:55:09,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:55:09,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20087 [2020-09-24 16:55:09,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:55:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 16:55:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:55:09,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:55:09,464 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:55:09,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:55:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:09,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:09,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:09,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:55:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-24 16:55:09,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 16:55:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:09,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:55:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:09,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:09,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:09,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:09,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:09,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:55:09,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:55:09,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:09,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:55:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:09,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:09,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:09,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:09,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:09,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:55:09,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:55:09,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:09,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:55:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:09,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:09,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:09,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:09,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:09,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 16:55:09,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:09,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:09,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:09,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:55:09,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:09,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:55:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:09,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:09,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:09,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:09,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:09,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:55:09,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:55:09,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:09,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:55:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:09,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:09,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:09,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:09,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:55:09,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:55:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:55:09,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:10,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:55:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:10,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:10,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:10,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:10,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:10,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:55:10,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:55:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:10,086 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 16:55:10,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569355615] [2020-09-24 16:55:10,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:55:10,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:55:10,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446754260] [2020-09-24 16:55:10,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:55:10,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:55:10,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:55:10,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:55:10,118 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 9 states. [2020-09-24 16:55:10,631 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:55:11,671 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:55:12,050 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:55:12,435 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:55:12,797 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:55:13,109 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:55:13,404 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:55:13,712 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:55:14,218 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:55:15,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:55:15,678 INFO L93 Difference]: Finished difference Result 558 states and 705 transitions. [2020-09-24 16:55:15,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:55:15,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2020-09-24 16:55:15,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:55:15,705 INFO L225 Difference]: With dead ends: 558 [2020-09-24 16:55:15,705 INFO L226 Difference]: Without dead ends: 387 [2020-09-24 16:55:15,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:55:15,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-09-24 16:55:15,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 345. [2020-09-24 16:55:15,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-24 16:55:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 397 transitions. [2020-09-24 16:55:15,877 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 397 transitions. Word has length 142 [2020-09-24 16:55:15,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:55:15,878 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 397 transitions. [2020-09-24 16:55:15,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:55:15,879 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 397 transitions. [2020-09-24 16:55:15,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:55:15,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:55:15,885 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 16:55:15,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:55:15,885 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:55:15,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:55:15,886 INFO L82 PathProgramCache]: Analyzing trace with hash 983377985, now seen corresponding path program 1 times [2020-09-24 16:55:15,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:55:15,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508473165] [2020-09-24 16:55:15,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:55:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:15,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:16,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:16,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:21,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 16:55:24,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 16:55:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8210 [2020-09-24 16:55:24,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:55:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:55:24,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-24 16:55:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:24,491 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:55:24,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:55:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:55:24,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 16:55:24,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:55:24,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:24,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:55:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:24,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:55:24,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:24,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:55:24,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:24,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:55:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:24,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:55:24,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:55:24,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:24,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:55:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:24,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:55:24,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:55:24,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:24,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:55:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:24,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:55:24,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:55:24,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:24,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 16:55:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:55:24,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:55:24,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:55:24,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:24,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 16:55:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:24,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:55:24,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:24,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:55:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:24,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 16:55:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:24,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:24,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:24,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:24,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:24,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:55:24,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:24,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:55:24,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:24,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:55:24,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:24,965 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 16:55:24,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508473165] [2020-09-24 16:55:24,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:55:24,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:55:24,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759236206] [2020-09-24 16:55:24,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:55:24,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:55:24,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:55:24,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:55:24,969 INFO L87 Difference]: Start difference. First operand 345 states and 397 transitions. Second operand 9 states. [2020-09-24 16:55:25,472 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:55:27,112 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:55:27,397 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:55:27,721 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:55:28,109 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:55:28,414 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:55:28,712 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:55:29,008 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:55:29,320 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:55:30,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:55:30,174 INFO L93 Difference]: Finished difference Result 850 states and 1143 transitions. [2020-09-24 16:55:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:55:30,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 16:55:30,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:55:30,185 INFO L225 Difference]: With dead ends: 850 [2020-09-24 16:55:30,185 INFO L226 Difference]: Without dead ends: 615 [2020-09-24 16:55:30,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:55:30,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2020-09-24 16:55:30,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 502. [2020-09-24 16:55:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-24 16:55:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 621 transitions. [2020-09-24 16:55:30,299 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 621 transitions. Word has length 148 [2020-09-24 16:55:30,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:55:30,300 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 621 transitions. [2020-09-24 16:55:30,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:55:30,300 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 621 transitions. [2020-09-24 16:55:30,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-24 16:55:30,309 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:55:30,309 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:55:30,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:55:30,309 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:55:30,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:55:30,310 INFO L82 PathProgramCache]: Analyzing trace with hash -261990116, now seen corresponding path program 1 times [2020-09-24 16:55:30,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:55:30,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73155523] [2020-09-24 16:55:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:55:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:30,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:30,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:30,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:30,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:30,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-24 16:55:34,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:55:34,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3751 [2020-09-24 16:55:34,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:34,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 16:55:34,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 16:55:34,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:34,448 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:55:34,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:55:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,557 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:55:34,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:34,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 16:55:34,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:34,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:34,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:55:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:34,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:34,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:55:34,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:34,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:34,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:55:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:34,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:55:34,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:34,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:34,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:55:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:34,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:34,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:55:34,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:34,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:34,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:34,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:34,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:55:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:34,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:34,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:55:34,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:34,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:34,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:34,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:34,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 16:55:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:55:34,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:34,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:55:34,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:55:34,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:34,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 16:55:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 16:55:34,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:55:34,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-24 16:55:34,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:55:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 16:55:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:55:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:55:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:55:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:34,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:34,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:34,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:55:34,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:34,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 16:55:34,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:34,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:55:34,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:55:34,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:55:34,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:35,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:55:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:35,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:35,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:35,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:55:35,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 16:55:35,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:55:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:55:35,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1