/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:08:44,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:08:44,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:08:44,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:08:44,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:08:44,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:08:44,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:08:44,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:08:44,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:08:44,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:08:44,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:08:44,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:08:44,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:08:44,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:08:44,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:08:44,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:08:44,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:08:44,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:08:44,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:08:44,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:08:44,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:08:44,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:08:44,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:08:44,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:08:44,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:08:44,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:08:44,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:08:44,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:08:44,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:08:44,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:08:44,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:08:44,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:08:44,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:08:44,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:08:44,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:08:44,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:08:44,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:08:44,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:08:44,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:08:44,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:08:44,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:08:44,706 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 [2020-09-21 12:08:44,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:08:44,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:08:44,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:08:44,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:08:44,734 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:08:44,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:08:44,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:08:44,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:08:44,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:08:44,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:08:44,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:08:44,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:08:44,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:08:44,736 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:08:44,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:08:44,737 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:08:44,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:08:44,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:08:44,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:08:44,737 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:08:44,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:08:44,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:08:44,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:08:44,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:08:44,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:08:44,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:08:44,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:08:44,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:08:44,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:08:44,739 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:08:45,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:08:45,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:08:45,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:08:45,252 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:08:45,252 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:08:45,254 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product16.cil.c [2020-09-21 12:08:45,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86a0e16a3/25ede29cb750461994c0b1e386ef458f/FLAGe3e1490ec [2020-09-21 12:08:45,948 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:08:45,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product16.cil.c [2020-09-21 12:08:45,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86a0e16a3/25ede29cb750461994c0b1e386ef458f/FLAGe3e1490ec [2020-09-21 12:08:46,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86a0e16a3/25ede29cb750461994c0b1e386ef458f [2020-09-21 12:08:46,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:08:46,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:08:46,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:08:46,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:08:46,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:08:46,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:46,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46, skipping insertion in model container [2020-09-21 12:08:46,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:46,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:08:46,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:08:46,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:08:46,711 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:08:46,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:08:46,942 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:08:46,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46 WrapperNode [2020-09-21 12:08:46,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:08:46,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:08:46,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:08:46,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:08:46,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:46,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:46,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:46,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:47,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:47,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:47,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (1/1) ... [2020-09-21 12:08:47,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:08:47,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:08:47,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:08:47,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:08:47,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (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 [2020-09-21 12:08:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:08:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:08:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:08:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:08:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:08:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:08:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:08:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:08:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:08:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:08:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:08:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:08:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:08:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:08:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:08:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-21 12:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:08:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:08:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:08:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:08:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:08:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:08:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:08:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:08:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:08:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:08:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:08:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:08:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:08:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:08:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:08:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:08:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:08:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:08:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:08:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:08:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:08:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:08:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:08:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:08:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:08:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-21 12:08:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:08:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:08:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:08:48,182 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:08:48,182 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:08:48,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:08:48 BoogieIcfgContainer [2020-09-21 12:08:48,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:08:48,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:08:48,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:08:48,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:08:48,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:08:46" (1/3) ... [2020-09-21 12:08:48,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634650bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:08:48, skipping insertion in model container [2020-09-21 12:08:48,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:08:46" (2/3) ... [2020-09-21 12:08:48,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634650bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:08:48, skipping insertion in model container [2020-09-21 12:08:48,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:08:48" (3/3) ... [2020-09-21 12:08:48,197 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product16.cil.c [2020-09-21 12:08:48,208 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:08:48,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:08:48,240 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:08:48,269 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:08:48,269 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:08:48,269 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:08:48,269 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:08:48,270 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:08:48,270 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:08:48,270 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:08:48,270 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:08:48,293 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-09-21 12:08:48,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:08:48,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:08:48,306 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] [2020-09-21 12:08:48,306 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:08:48,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:08:48,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1266461352, now seen corresponding path program 1 times [2020-09-21 12:08:48,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:08:48,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814269089] [2020-09-21 12:08:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:08:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:48,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:48,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:49,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:49,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 12:08:49,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:08:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-21 12:08:49,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:08:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:49,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:08:50,050 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:08:50,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:08:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:50,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 12:08:50,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:08:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:50,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:50,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:08:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:50,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:08:50,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:08:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:50,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:08:50,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:50,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:08:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:50,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:08:50,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:08:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:50,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:08:50,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:08:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:50,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:08:50,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:08:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:50,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:50,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:50,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:50,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:08:50,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:50,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:08:50,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814269089] [2020-09-21 12:08:50,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:08:50,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:08:50,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140416146] [2020-09-21 12:08:50,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:08:50,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:08:50,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:08:50,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:08:50,311 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 4 states. [2020-09-21 12:08:51,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:08:51,335 INFO L93 Difference]: Finished difference Result 261 states and 347 transitions. [2020-09-21 12:08:51,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:08:51,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 12:08:51,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:08:51,362 INFO L225 Difference]: With dead ends: 261 [2020-09-21 12:08:51,362 INFO L226 Difference]: Without dead ends: 148 [2020-09-21 12:08:51,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:08:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-21 12:08:51,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2020-09-21 12:08:51,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 12:08:51,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2020-09-21 12:08:51,540 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 51 [2020-09-21 12:08:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:08:51,541 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2020-09-21 12:08:51,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:08:51,541 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2020-09-21 12:08:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:08:51,553 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:08:51,554 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] [2020-09-21 12:08:51,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:08:51,554 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:08:51,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:08:51,555 INFO L82 PathProgramCache]: Analyzing trace with hash 65491606, now seen corresponding path program 1 times [2020-09-21 12:08:51,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:08:51,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119101515] [2020-09-21 12:08:51,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:08:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:51,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:52,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:52,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:08:52,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:08:52,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-09-21 12:08:52,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:08:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:08:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:08:52,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:08:53,170 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:08:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:08:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:53,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 12:08:53,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:53,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:08:53,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:08:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:53,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:53,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:53,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:08:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:53,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:08:53,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:53,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:08:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:53,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:08:53,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:53,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:08:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:53,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:53,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:53,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:08:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:53,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:53,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:53,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:08:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:53,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:53,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:53,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:08:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:53,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:53,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:53,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:53,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:53,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:08:53,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:53,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:53,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:53,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:53,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:08:53,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119101515] [2020-09-21 12:08:53,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:08:53,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:08:53,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966067420] [2020-09-21 12:08:53,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:08:53,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:08:53,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:08:53,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:08:53,368 INFO L87 Difference]: Start difference. First operand 114 states and 134 transitions. Second operand 5 states. [2020-09-21 12:08:53,890 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:08:54,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:08:54,726 INFO L93 Difference]: Finished difference Result 196 states and 246 transitions. [2020-09-21 12:08:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:08:54,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 12:08:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:08:54,730 INFO L225 Difference]: With dead ends: 196 [2020-09-21 12:08:54,731 INFO L226 Difference]: Without dead ends: 138 [2020-09-21 12:08:54,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:08:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-21 12:08:54,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 105. [2020-09-21 12:08:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 12:08:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2020-09-21 12:08:54,774 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 52 [2020-09-21 12:08:54,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:08:54,775 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2020-09-21 12:08:54,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:08:54,775 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2020-09-21 12:08:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:08:54,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:08:54,777 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] [2020-09-21 12:08:54,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:08:54,778 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:08:54,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:08:54,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1072526847, now seen corresponding path program 1 times [2020-09-21 12:08:54,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:08:54,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111652568] [2020-09-21 12:08:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:08:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:55,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:55,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:08:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:08:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-21 12:08:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:08:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 12:08:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,187 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:08:56,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:08:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:56,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 12:08:56,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:08:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:08:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:08:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:56,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:56,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:08:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:08:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:08:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:56,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:56,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:08:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:08:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:08:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:56,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:08:56,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:08:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:08:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:08:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:08:56,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:56,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:08:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:08:56,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:08:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:56,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:08:56,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:08:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:08:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:08:56,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:08:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:56,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:08:56,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:08:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:56,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:56,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:56,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:08:56,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:56,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:08:56,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:08:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:08:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:08:56,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111652568] [2020-09-21 12:08:56,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:08:56,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:08:56,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124871804] [2020-09-21 12:08:56,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:08:56,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:08:56,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:08:56,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:08:56,427 INFO L87 Difference]: Start difference. First operand 105 states and 122 transitions. Second operand 5 states. [2020-09-21 12:08:56,815 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:08:58,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:08:58,387 INFO L93 Difference]: Finished difference Result 301 states and 382 transitions. [2020-09-21 12:08:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:08:58,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-21 12:08:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:08:58,393 INFO L225 Difference]: With dead ends: 301 [2020-09-21 12:08:58,393 INFO L226 Difference]: Without dead ends: 224 [2020-09-21 12:08:58,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:08:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-21 12:08:58,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 172. [2020-09-21 12:08:58,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-21 12:08:58,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 207 transitions. [2020-09-21 12:08:58,460 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 207 transitions. Word has length 57 [2020-09-21 12:08:58,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:08:58,460 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 207 transitions. [2020-09-21 12:08:58,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:08:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 207 transitions. [2020-09-21 12:08:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-21 12:08:58,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:08:58,463 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] [2020-09-21 12:08:58,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:08:58,463 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:08:58,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:08:58,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1689182460, now seen corresponding path program 1 times [2020-09-21 12:08:58,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:08:58,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923784858] [2020-09-21 12:08:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:08:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:58,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:08:59,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:08:59,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 12:08:59,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:08:59,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:08:59,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:08:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 12:08:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:08:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 12:08:59,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:08:59,884 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:08:59,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:08:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:08:59,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:00,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-21 12:09:00,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:09:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:00,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:09:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:00,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:00,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:09:00,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:09:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:00,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:00,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:09:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:09:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:00,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:09:00,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:09:00,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:09:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:00,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:09:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:09:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:00,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:00,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:09:00,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:09:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:09:00,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:00,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:09:00,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:09:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:00,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:09:00,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:09:00,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:00,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:09:00,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:09:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:00,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:00,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:00,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:00,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:00,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:00,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:00,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:09:00,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923784858] [2020-09-21 12:09:00,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:09:00,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:09:00,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774537330] [2020-09-21 12:09:00,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:09:00,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:09:00,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:09:00,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:09:00,209 INFO L87 Difference]: Start difference. First operand 172 states and 207 transitions. Second operand 9 states. [2020-09-21 12:09:00,684 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:01,998 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:02,402 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:02,714 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:03,069 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 12:09:04,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:09:04,078 INFO L93 Difference]: Finished difference Result 558 states and 758 transitions. [2020-09-21 12:09:04,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 12:09:04,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-09-21 12:09:04,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:09:04,084 INFO L225 Difference]: With dead ends: 558 [2020-09-21 12:09:04,085 INFO L226 Difference]: Without dead ends: 414 [2020-09-21 12:09:04,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-21 12:09:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-09-21 12:09:04,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 299. [2020-09-21 12:09:04,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-21 12:09:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 364 transitions. [2020-09-21 12:09:04,181 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 364 transitions. Word has length 62 [2020-09-21 12:09:04,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:09:04,182 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 364 transitions. [2020-09-21 12:09:04,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:09:04,182 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 364 transitions. [2020-09-21 12:09:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 12:09:04,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:09:04,184 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] [2020-09-21 12:09:04,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:09:04,185 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:09:04,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:09:04,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1702077928, now seen corresponding path program 1 times [2020-09-21 12:09:04,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:09:04,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330834120] [2020-09-21 12:09:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:09:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:04,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:04,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:04,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-21 12:09:05,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:09:05,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-21 12:09:05,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:09:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 12:09:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:09:05,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,548 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:09:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:05,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:09:05,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:05,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:09:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:05,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:05,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:09:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:05,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:05,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:09:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:05,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:05,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:09:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:05,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:09:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:05,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:05,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:09:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:05,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:05,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:09:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:09:05,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:05,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:05,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:09:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:09:05,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:09:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:05,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 12:09:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:05,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:05,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:05,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:05,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:05,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:09:05,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:09:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:09:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:09:05,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330834120] [2020-09-21 12:09:05,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:09:05,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:09:05,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101453749] [2020-09-21 12:09:05,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:09:05,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:09:05,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:09:05,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:09:05,791 INFO L87 Difference]: Start difference. First operand 299 states and 364 transitions. Second operand 10 states. [2020-09-21 12:09:06,360 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:07,825 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-21 12:09:08,194 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:08,523 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:09:09,204 INFO L93 Difference]: Finished difference Result 607 states and 826 transitions. [2020-09-21 12:09:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:09:09,209 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-09-21 12:09:09,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:09:09,210 INFO L225 Difference]: With dead ends: 607 [2020-09-21 12:09:09,210 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:09:09,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-09-21 12:09:09,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:09:09,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:09:09,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:09:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:09:09,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2020-09-21 12:09:09,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:09:09,215 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:09:09,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:09:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:09:09,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:09:09,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:09:09,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:09:09,439 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:09,629 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:09,808 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:09,976 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:10,155 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:10,349 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:10,518 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:10,954 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 6 [2020-09-21 12:09:11,127 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:11,552 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-21 12:09:11,861 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-21 12:09:12,251 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-21 12:09:12,638 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-21 12:09:12,935 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-21 12:09:13,223 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 189 [2020-09-21 12:09:13,595 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-21 12:09:13,980 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-21 12:09:14,275 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-21 12:09:14,676 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-21 12:09:14,966 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-21 12:09:15,342 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-21 12:09:15,628 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-21 12:09:15,916 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-21 12:09:16,199 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 189 [2020-09-21 12:09:16,489 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-21 12:09:16,644 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:16,798 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:17,123 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 12:09:17,437 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-21 12:09:17,757 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 12:09:18,078 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 12:09:18,401 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 12:09:18,730 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 12:09:19,050 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-21 12:09:19,372 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 12:09:19,688 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-21 12:09:19,834 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:19,982 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:20,136 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:20,298 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:20,450 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:20,607 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:20,760 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:20,917 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:21,075 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:21,228 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:21,377 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:21,535 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:21,693 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:21,846 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:22,004 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:22,156 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:22,314 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:22,466 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:22,619 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:22,767 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:22,920 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:23,078 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:23,226 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:23,381 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:23,540 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:23,698 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:23,855 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:24,014 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:24,167 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:24,320 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:24,477 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:24,635 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:24,787 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:24,935 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:25,088 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:25,262 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:25,379 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 6 [2020-09-21 12:09:25,537 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:25,694 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:25,852 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:26,010 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:26,168 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:26,326 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:26,479 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:26,631 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:26,783 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:26,932 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:27,085 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:27,453 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 6 [2020-09-21 12:09:27,810 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-21 12:09:28,095 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-21 12:09:28,451 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-21 12:09:28,811 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-21 12:09:29,106 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-21 12:09:29,375 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-21 12:09:29,732 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-21 12:09:30,089 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-21 12:09:30,366 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-21 12:09:30,724 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-21 12:09:31,022 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-21 12:09:31,381 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-21 12:09:31,655 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-21 12:09:31,930 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-21 12:09:32,198 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-21 12:09:32,486 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-21 12:09:32,652 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:32,923 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 6 [2020-09-21 12:09:33,080 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:33,238 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:33,387 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:33,542 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:33,696 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:33,854 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:34,012 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:34,168 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:34,331 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:34,484 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:34,634 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:34,792 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:35,068 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 6 [2020-09-21 12:09:35,254 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:35,402 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:35,559 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:35,713 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:35,898 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:36,054 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 6 [2020-09-21 12:09:36,208 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:36,367 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:36,520 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:36,678 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:36,835 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:36,992 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:37,149 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:37,302 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:37,459 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:37,611 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:37,759 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:37,911 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:38,060 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:38,213 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:09:38,374 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:09:38,527 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:38,950 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 7 [2020-09-21 12:09:39,171 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:39,417 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:39,645 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:40,124 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 14 [2020-09-21 12:09:40,563 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 13 [2020-09-21 12:09:40,966 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 8 [2020-09-21 12:09:41,241 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:41,670 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 8 [2020-09-21 12:09:42,028 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 14 [2020-09-21 12:09:42,211 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-09-21 12:09:42,663 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 8 [2020-09-21 12:09:42,901 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:43,324 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 8 [2020-09-21 12:09:43,775 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 14 [2020-09-21 12:09:44,012 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:44,245 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:44,486 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:44,709 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2020-09-21 12:09:44,929 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 15 [2020-09-21 12:09:45,355 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 7 [2020-09-21 12:09:45,592 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-21 12:09:45,854 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2020-09-21 12:09:46,369 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 11