/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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:17:13,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:17:13,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:17:13,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:17:13,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:17:13,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:17:13,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:17:13,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:17:13,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:17:13,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:17:13,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:17:13,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:17:13,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:17:13,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:17:13,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:17:13,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:17:13,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:17:13,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:17:13,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:17:13,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:17:13,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:17:13,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:17:13,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:17:13,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:17:13,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:17:13,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:17:13,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:17:13,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:17:13,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:17:13,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:17:13,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:17:13,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:17:13,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:17:13,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:17:13,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:17:13,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:17:13,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:17:13,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:17:13,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:17:13,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:17:13,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:17:13,618 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 20:17:13,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:17:13,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:17:13,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:17:13,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:17:13,668 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:17:13,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:17:13,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:17:13,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:17:13,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:17:13,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:17:13,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:17:13,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:17:13,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:17:13,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:17:13,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:17:13,672 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:17:13,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:17:13,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:17:13,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:17:13,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:17:13,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:17:13,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:17:13,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:17:13,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:17:13,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:17:13,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:17:13,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:17:13,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:17:13,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:17:13,675 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 20:17:14,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:17:14,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:17:14,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:17:14,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:17:14,181 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:17:14,182 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-24 20:17:14,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44e80d0f8/1e6b7a6df9af44eeb5cbc6ec9a03e324/FLAG1711376a3 [2020-09-24 20:17:14,863 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:17:14,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-24 20:17:14,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44e80d0f8/1e6b7a6df9af44eeb5cbc6ec9a03e324/FLAG1711376a3 [2020-09-24 20:17:15,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44e80d0f8/1e6b7a6df9af44eeb5cbc6ec9a03e324 [2020-09-24 20:17:15,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:17:15,141 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:17:15,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:15,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:17:15,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:17:15,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:15,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15, skipping insertion in model container [2020-09-24 20:17:15,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:15,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:17:15,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:17:15,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:15,741 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:17:15,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:15,900 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:17:15,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15 WrapperNode [2020-09-24 20:17:15,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:15,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:17:15,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:17:15,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:17:15,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:15,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:15,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:15,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:16,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:16,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:16,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (1/1) ... [2020-09-24 20:17:16,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:17:16,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:17:16,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:17:16,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:17:16,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (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 20:17:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:17:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:17:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:17:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:17:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:17:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:17:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:17:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:17:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:17:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:17:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:17:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:17:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:17:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:17:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:17:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:17:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:17:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:17:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:17:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:17:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:17:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:17:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:17:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:17:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:17:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:17:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:17:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:17:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:17:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:17:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:17:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:17:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:17:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:17:16,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:17:16,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:17:16,129 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:17:16,129 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:17:16,129 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:17:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:17:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:17:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:17:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:17:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:17:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:17:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:17:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:17:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:17:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:17:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:17:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:17:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:17:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:17:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:17:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:17:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:17:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:17:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:17:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:17:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:17:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:17:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:17:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:17:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:17:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:17:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:17:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:17:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:17:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:17:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:17:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:17:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:17:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:17:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:17:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:17:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:17:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:17:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:17:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:17:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:17:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:17:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:17:17,301 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:17:17,301 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:17:17,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:17 BoogieIcfgContainer [2020-09-24 20:17:17,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:17:17,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:17:17,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:17:17,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:17:17,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:17:15" (1/3) ... [2020-09-24 20:17:17,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d028dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:17, skipping insertion in model container [2020-09-24 20:17:17,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:15" (2/3) ... [2020-09-24 20:17:17,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d028dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:17, skipping insertion in model container [2020-09-24 20:17:17,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:17" (3/3) ... [2020-09-24 20:17:17,319 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-09-24 20:17:17,331 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:17:17,343 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:17:17,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:17:17,404 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:17:17,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:17:17,404 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:17:17,404 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:17:17,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:17:17,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:17:17,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:17:17,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:17:17,436 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-24 20:17:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:17:17,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:17,455 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 20:17:17,456 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:17,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:17,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1194640378, now seen corresponding path program 1 times [2020-09-24 20:17:17,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:17,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403752632] [2020-09-24 20:17:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:17,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:18,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:18,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:19,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:20,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:22,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:22,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:17:22,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:17:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 20:17:22,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:17:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:17:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 20:17:22,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:17:23,455 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:23,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:23,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:23,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:23,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-24 20:17:23,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:17:23,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:23,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:23,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:23,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:23,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:23,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:23,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:23,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:23,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:23,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:23,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:23,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:23,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:23,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:23,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:17:23,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:23,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:23,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:23,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:23,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:23,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:23,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:23,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:17:23,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:23,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:23,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:23,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:23,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:23,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:17:23,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:23,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:23,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:17:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:23,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:23,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:23,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:23,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:23,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:17:23,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:23,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:23,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:23,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:23,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:24,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:17:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:24,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:24,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:24,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:24,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:24,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:24,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:24,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:24,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:24,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:24,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:24,069 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 20:17:24,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403752632] [2020-09-24 20:17:24,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:24,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:17:24,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52721604] [2020-09-24 20:17:24,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:17:24,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:24,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:17:24,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:17:24,116 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 8 states. [2020-09-24 20:17:24,830 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:25,824 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:26,177 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:26,616 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:27,054 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:27,392 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:27,702 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:28,027 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:30,041 INFO L93 Difference]: Finished difference Result 648 states and 797 transitions. [2020-09-24 20:17:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:17:30,044 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:17:30,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:30,068 INFO L225 Difference]: With dead ends: 648 [2020-09-24 20:17:30,068 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 20:17:30,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:17:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 20:17:30,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 404. [2020-09-24 20:17:30,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-09-24 20:17:30,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 456 transitions. [2020-09-24 20:17:30,240 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 456 transitions. Word has length 142 [2020-09-24 20:17:30,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:30,241 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 456 transitions. [2020-09-24 20:17:30,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:17:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 456 transitions. [2020-09-24 20:17:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:17:30,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:30,248 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 20:17:30,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:17:30,248 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:30,249 INFO L82 PathProgramCache]: Analyzing trace with hash -2022222468, now seen corresponding path program 1 times [2020-09-24 20:17:30,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:30,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986450094] [2020-09-24 20:17:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:30,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:30,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:34,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:35,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:35,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:17:35,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:17:35,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-24 20:17:35,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:17:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:17:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 20:17:35,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:35,755 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:35,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:36,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-24 20:17:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:17:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:36,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:36,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:17:36,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:36,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:36,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:36,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:36,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:36,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:36,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:36,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:17:36,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:36,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:36,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:36,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:36,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:36,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:36,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:17:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:17:36,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:17:36,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:17:36,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:36,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 20:17:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:36,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:17:36,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:36,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:36,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:17:36,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:17:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:36,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:36,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:36,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:17:36,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:36,321 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 20:17:36,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986450094] [2020-09-24 20:17:36,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:36,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:17:36,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782316408] [2020-09-24 20:17:36,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:17:36,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:36,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:17:36,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:17:36,327 INFO L87 Difference]: Start difference. First operand 404 states and 456 transitions. Second operand 9 states. [2020-09-24 20:17:36,809 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:17:38,100 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:38,446 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:17:38,803 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:39,216 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:17:39,558 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:17:40,166 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:40,470 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:40,901 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:42,182 INFO L93 Difference]: Finished difference Result 875 states and 1101 transitions. [2020-09-24 20:17:42,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:17:42,183 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:17:42,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:42,192 INFO L225 Difference]: With dead ends: 875 [2020-09-24 20:17:42,192 INFO L226 Difference]: Without dead ends: 581 [2020-09-24 20:17:42,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:17:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-09-24 20:17:42,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 526. [2020-09-24 20:17:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-24 20:17:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 619 transitions. [2020-09-24 20:17:42,284 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 619 transitions. Word has length 148 [2020-09-24 20:17:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:42,285 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 619 transitions. [2020-09-24 20:17:42,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:17:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 619 transitions. [2020-09-24 20:17:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-24 20:17:42,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:42,291 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:17:42,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:17:42,291 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:42,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash -967891593, now seen corresponding path program 1 times [2020-09-24 20:17:42,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:42,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063712201] [2020-09-24 20:17:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:43,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:43,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:47,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:47,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-24 20:17:47,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:17:47,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 20:17:47,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:47,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:17:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:17:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-09-24 20:17:47,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:47,674 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:47,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:47,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:47,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:47,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:47,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:47,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 20:17:47,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:47,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:47,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:17:47,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:47,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:47,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:47,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:47,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:47,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:47,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:47,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:47,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:47,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:47,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:47,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:47,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:47,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:47,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:47,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:47,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:47,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:17:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:47,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:48,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:48,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:48,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:17:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:17:48,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:17:48,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:17:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:17:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:17:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:17:48,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 20:17:48,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:17:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:17:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:17:48,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:17:48,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:17:48,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:48,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:48,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:17:48,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:48,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:17:48,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:48,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:48,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:48,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:17:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:17:48,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:17:48,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:17:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:17:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:17:48,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:17:48,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:17:48,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:17:48,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:48,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:48,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:48,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:48,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:17:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:17:48,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:17:48,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 20:17:48,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:17:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:17:48,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:17:48,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:48,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:17:48,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 20:17:48,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:17:48,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:17:48,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:17:48,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:48,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:17:48,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 20:17:48,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:48,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:48,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:17:48,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:48,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:17:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:17:48,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:17:48,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:48,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:17:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:17:48,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:48,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:17:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:48,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:48,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 20:17:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:48,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:48,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:48,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-09-24 20:17:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:48,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:48,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:48,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:48,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:48,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:48,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:48,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:48,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:48,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:48,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-24 20:17:48,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063712201] [2020-09-24 20:17:48,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:17:48,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 20:17:48,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738265174] [2020-09-24 20:17:48,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:17:48,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:48,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:17:48,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:17:48,755 INFO L87 Difference]: Start difference. First operand 526 states and 619 transitions. Second operand 14 states. [2020-09-24 20:17:49,416 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:50,482 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:51,417 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:51,808 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:17:52,177 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:17:52,533 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:52,908 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:17:53,258 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:53,910 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:54,297 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:17:54,715 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:17:55,104 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:55,475 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:17:55,783 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:57,077 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:57,445 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:17:57,806 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:17:58,187 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:17:58,601 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:58,914 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:01,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:18:01,331 INFO L93 Difference]: Finished difference Result 1614 states and 2263 transitions. [2020-09-24 20:18:01,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-24 20:18:01,331 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 244 [2020-09-24 20:18:01,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:18:01,356 INFO L225 Difference]: With dead ends: 1614 [2020-09-24 20:18:01,356 INFO L226 Difference]: Without dead ends: 1198 [2020-09-24 20:18:01,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=391, Invalid=1415, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 20:18:01,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-09-24 20:18:01,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 977. [2020-09-24 20:18:01,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-09-24 20:18:01,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1228 transitions. [2020-09-24 20:18:01,519 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1228 transitions. Word has length 244 [2020-09-24 20:18:01,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:18:01,520 INFO L479 AbstractCegarLoop]: Abstraction has 977 states and 1228 transitions. [2020-09-24 20:18:01,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:18:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1228 transitions. [2020-09-24 20:18:01,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 20:18:01,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:18:01,525 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:18:01,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:18:01,525 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:18:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:18:01,526 INFO L82 PathProgramCache]: Analyzing trace with hash -448792521, now seen corresponding path program 1 times [2020-09-24 20:18:01,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:18:01,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315852520] [2020-09-24 20:18:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:18:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:01,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:01,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:01,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:02,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking...