/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_spec4_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:14:31,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:14:31,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:14:31,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:14:31,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:14:31,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:14:31,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:14:31,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:14:31,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:14:31,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:14:31,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:14:31,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:14:31,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:14:31,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:14:31,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:14:31,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:14:31,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:14:31,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:14:31,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:14:31,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:14:31,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:14:31,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:14:31,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:14:31,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:14:31,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:14:31,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:14:31,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:14:31,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:14:31,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:14:31,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:14:31,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:14:31,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:14:31,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:14:31,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:14:31,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:14:31,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:14:31,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:14:31,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:14:31,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:14:31,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:14:31,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:14:31,379 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 12:14:31,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:14:31,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:14:31,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:14:31,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:14:31,428 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:14:31,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:14:31,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:14:31,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:14:31,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:14:31,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:14:31,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:14:31,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:14:31,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:14:31,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:14:31,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:14:31,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:14:31,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:14:31,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:14:31,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:14:31,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:14:31,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:14:31,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:14:31,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:14:31,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:14:31,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:14:31,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:14:31,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:14:31,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:14:31,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:14:31,435 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 12:14:31,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:14:31,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:14:31,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:14:31,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:14:31,937 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:14:31,939 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product29.cil.c [2020-09-21 12:14:32,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4c10b324/fb483575062b42569ec45fcfe1422f6f/FLAG3e1d3b1e3 [2020-09-21 12:14:32,672 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:14:32,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product29.cil.c [2020-09-21 12:14:32,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4c10b324/fb483575062b42569ec45fcfe1422f6f/FLAG3e1d3b1e3 [2020-09-21 12:14:32,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4c10b324/fb483575062b42569ec45fcfe1422f6f [2020-09-21 12:14:32,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:14:32,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:14:32,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:14:32,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:14:32,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:14:32,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:14:32" (1/1) ... [2020-09-21 12:14:32,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e6ef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:32, skipping insertion in model container [2020-09-21 12:14:32,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:14:32" (1/1) ... [2020-09-21 12:14:32,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:14:33,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:14:33,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:14:33,477 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:14:33,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:14:33,617 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:14:33,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33 WrapperNode [2020-09-21 12:14:33,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:14:33,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:14:33,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:14:33,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:14:33,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (1/1) ... [2020-09-21 12:14:33,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (1/1) ... [2020-09-21 12:14:33,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (1/1) ... [2020-09-21 12:14:33,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (1/1) ... [2020-09-21 12:14:33,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (1/1) ... [2020-09-21 12:14:33,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (1/1) ... [2020-09-21 12:14:33,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (1/1) ... [2020-09-21 12:14:33,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:14:33,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:14:33,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:14:33,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:14:33,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (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 12:14:33,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:14:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:14:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:14:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:14:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:14:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:14:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:14:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:14:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:14:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:14:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:14:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:14:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:14:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:14:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:14:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:14:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:14:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:14:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:14:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:14:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:14:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:14:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:14:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:14:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:14:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:14:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:14:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:14:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:14:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:14:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:14:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:14:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:14:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:14:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:14:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:14:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:14:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:14:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 12:14:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:14:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:14:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:14:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:14:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:14:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:14:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:14:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:14:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:14:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:14:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:14:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:14:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:14:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:14:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:14:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:14:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:14:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:14:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:14:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:14:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:14:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:14:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:14:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:14:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:14:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:14:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 12:14:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:14:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:14:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:14:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:14:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:14:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:14:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:14:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:14:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:14:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:14:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:14:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:14:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:14:34,830 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:14:34,830 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:14:34,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:14:34 BoogieIcfgContainer [2020-09-21 12:14:34,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:14:34,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:14:34,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:14:34,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:14:34,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:14:32" (1/3) ... [2020-09-21 12:14:34,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d91eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:14:34, skipping insertion in model container [2020-09-21 12:14:34,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:14:33" (2/3) ... [2020-09-21 12:14:34,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d91eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:14:34, skipping insertion in model container [2020-09-21 12:14:34,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:14:34" (3/3) ... [2020-09-21 12:14:34,845 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product29.cil.c [2020-09-21 12:14:34,856 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:14:34,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:14:34,885 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:14:34,911 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:14:34,911 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:14:34,911 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:14:34,911 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:14:34,911 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:14:34,911 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:14:34,911 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:14:34,911 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:14:34,936 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-09-21 12:14:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 12:14:34,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:14:34,949 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] [2020-09-21 12:14:34,950 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:14:34,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:14:34,957 INFO L82 PathProgramCache]: Analyzing trace with hash 384818270, now seen corresponding path program 1 times [2020-09-21 12:14:34,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:14:34,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892053920] [2020-09-21 12:14:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:14:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:35,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:36,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:36,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 12:14:36,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:14:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1444 [2020-09-21 12:14:36,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:14:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:36,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:14:37,216 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:14:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:14:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:37,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:37,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:37,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:37,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 12:14:37,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:37,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:37,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:14:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:37,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:37,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:37,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:37,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:37,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:37,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:37,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:37,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:37,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:37,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:37,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:14:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:37,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:37,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:37,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:37,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:37,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:37,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:37,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:37,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:14:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:37,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:37,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:37,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:37,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:37,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:14:37,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:37,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:37,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:14:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:37,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:37,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:37,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:37,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:37,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:37,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:37,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:37,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:37,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:14:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:37,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:37,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:37,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:37,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:14:37,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:37,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:37,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:14:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:37,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:37,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:37,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:14:37,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:37,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:37,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:37,511 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 12:14:37,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892053920] [2020-09-21 12:14:37,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:14:37,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:14:37,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290707215] [2020-09-21 12:14:37,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:14:37,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:14:37,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:14:37,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:14:37,566 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 3 states. [2020-09-21 12:14:38,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:14:38,891 INFO L93 Difference]: Finished difference Result 285 states and 374 transitions. [2020-09-21 12:14:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:14:38,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 12:14:38,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:14:38,911 INFO L225 Difference]: With dead ends: 285 [2020-09-21 12:14:38,911 INFO L226 Difference]: Without dead ends: 154 [2020-09-21 12:14:38,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:14:38,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-21 12:14:39,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 122. [2020-09-21 12:14:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-21 12:14:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-09-21 12:14:39,014 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 46 [2020-09-21 12:14:39,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:14:39,015 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-09-21 12:14:39,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:14:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-09-21 12:14:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 12:14:39,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:14:39,019 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] [2020-09-21 12:14:39,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:14:39,019 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:14:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:14:39,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1404738686, now seen corresponding path program 1 times [2020-09-21 12:14:39,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:14:39,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067396895] [2020-09-21 12:14:39,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:14:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:39,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:39,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:39,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 12:14:40,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:14:40,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-09-21 12:14:40,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 12:14:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:40,451 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:14:40,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:14:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:40,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:40,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:40,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 12:14:40,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:40,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:40,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:14:40,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:40,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:14:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:40,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:40,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:40,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:40,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:14:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:40,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:40,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:40,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:40,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:40,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:40,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:40,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:40,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:14:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:40,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:40,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:40,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:14:40,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:14:40,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:14:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:40,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:40,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:14:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:14:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:40,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:40,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:40,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:14:40,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:40,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:40,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:14:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:40,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:40,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:40,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:40,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:40,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:40,694 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 12:14:40,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067396895] [2020-09-21 12:14:40,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:14:40,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:14:40,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771066154] [2020-09-21 12:14:40,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:14:40,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:14:40,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:14:40,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:14:40,702 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 4 states. [2020-09-21 12:14:41,068 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:14:42,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:14:42,099 INFO L93 Difference]: Finished difference Result 252 states and 318 transitions. [2020-09-21 12:14:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:14:42,100 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 12:14:42,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:14:42,103 INFO L225 Difference]: With dead ends: 252 [2020-09-21 12:14:42,103 INFO L226 Difference]: Without dead ends: 154 [2020-09-21 12:14:42,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:14:42,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-21 12:14:42,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 122. [2020-09-21 12:14:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-21 12:14:42,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2020-09-21 12:14:42,164 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 47 [2020-09-21 12:14:42,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:14:42,165 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2020-09-21 12:14:42,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:14:42,165 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2020-09-21 12:14:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 12:14:42,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:14:42,169 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] [2020-09-21 12:14:42,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:14:42,169 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:14:42,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:14:42,170 INFO L82 PathProgramCache]: Analyzing trace with hash -2128475140, now seen corresponding path program 1 times [2020-09-21 12:14:42,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:14:42,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053795882] [2020-09-21 12:14:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:14:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:42,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 12:14:43,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-21 12:14:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 12:14:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-21 12:14:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,597 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:14:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:14:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:43,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-21 12:14:43,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:43,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:14:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:14:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:43,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:14:43,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:14:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:43,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:14:43,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:43,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:14:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:43,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:14:43,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:14:43,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:43,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:14:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:43,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:14:43,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:43,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 12:14:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:14:43,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:43,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 12:14:43,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:14:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:14:43,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:43,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:14:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:43,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:43,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:43,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:14:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:43,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:14:43,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:14:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:14:43,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 36 [2020-09-21 12:14:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 12:14:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:43,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:43,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:43,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:43,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:43,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:43,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:43,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:43,915 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 12:14:43,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053795882] [2020-09-21 12:14:43,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:14:43,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:14:43,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770870174] [2020-09-21 12:14:43,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:14:43,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:14:43,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:14:43,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:14:43,918 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand 8 states. [2020-09-21 12:14:44,355 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:14:45,718 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:14:46,091 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:14:46,354 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:14:46,656 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:14:47,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:14:47,814 INFO L93 Difference]: Finished difference Result 385 states and 521 transitions. [2020-09-21 12:14:47,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:14:47,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-09-21 12:14:47,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:14:47,819 INFO L225 Difference]: With dead ends: 385 [2020-09-21 12:14:47,819 INFO L226 Difference]: Without dead ends: 287 [2020-09-21 12:14:47,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:14:47,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-21 12:14:47,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 220. [2020-09-21 12:14:47,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-21 12:14:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 268 transitions. [2020-09-21 12:14:47,890 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 268 transitions. Word has length 64 [2020-09-21 12:14:47,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:14:47,890 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 268 transitions. [2020-09-21 12:14:47,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:14:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 268 transitions. [2020-09-21 12:14:47,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-21 12:14:47,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:14:47,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:14:47,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:14:47,895 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:14:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:14:47,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1340371222, now seen corresponding path program 1 times [2020-09-21 12:14:47,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:14:47,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55262047] [2020-09-21 12:14:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:14:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:47,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:48,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:48,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-21 12:14:48,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-21 12:14:48,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 12:14:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 12:14:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:49,269 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:14:49,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:14:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:49,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 12:14:49,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:14:49,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:14:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:49,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:14:49,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:49,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:14:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:49,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:14:49,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:14:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:49,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:49,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:49,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:14:49,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:14:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:49,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:14:49,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:14:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 12:14:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:49,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:14:49,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:14:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:14:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:14:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:49,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:14:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:14:49,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:14:49,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:49,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 12:14:49,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:14:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:14:49,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:49,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:49,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:14:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:49,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:14:49,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-21 12:14:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:49,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:14:49,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:14:49,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:49,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:14:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 12:14:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:49,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:49,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:49,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:49,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:49,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:49,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:49,582 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 12:14:49,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55262047] [2020-09-21 12:14:49,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:14:49,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 12:14:49,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278534366] [2020-09-21 12:14:49,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 12:14:49,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:14:49,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 12:14:49,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:14:49,585 INFO L87 Difference]: Start difference. First operand 220 states and 268 transitions. Second operand 11 states. [2020-09-21 12:14:50,091 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:14:50,801 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:14:51,976 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:14:52,530 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:14:53,081 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:14:53,494 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:14:53,827 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:14:56,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:14:56,028 INFO L93 Difference]: Finished difference Result 664 states and 934 transitions. [2020-09-21 12:14:56,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 12:14:56,029 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-09-21 12:14:56,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:14:56,036 INFO L225 Difference]: With dead ends: 664 [2020-09-21 12:14:56,039 INFO L226 Difference]: Without dead ends: 553 [2020-09-21 12:14:56,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-09-21 12:14:56,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-09-21 12:14:56,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 397. [2020-09-21 12:14:56,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-09-21 12:14:56,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 485 transitions. [2020-09-21 12:14:56,149 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 485 transitions. Word has length 68 [2020-09-21 12:14:56,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:14:56,150 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 485 transitions. [2020-09-21 12:14:56,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 12:14:56,150 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 485 transitions. [2020-09-21 12:14:56,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-21 12:14:56,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:14:56,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:14:56,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:14:56,155 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:14:56,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:14:56,155 INFO L82 PathProgramCache]: Analyzing trace with hash -460086026, now seen corresponding path program 1 times [2020-09-21 12:14:56,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:14:56,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162842581] [2020-09-21 12:14:56,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:14:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:56,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:56,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:56,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-21 12:14:57,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:14:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-21 12:14:57,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:14:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-21 12:14:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:14:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:57,437 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:14:57,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:14:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:57,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:14:57,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:57,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:14:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:57,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:14:57,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:14:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:57,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:14:57,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:14:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:57,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:14:57,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:57,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:14:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:57,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:57,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:57,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:14:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:57,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:14:57,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:14:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:57,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:14:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:14:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:14:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:14:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:14:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:14:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:14:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:14:57,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:14:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:14:57,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:14:57,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:14:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:14:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:14:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:14:57,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:57,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:14:57,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:57,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-21 12:14:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:57,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:57,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 33 [2020-09-21 12:14:57,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 12:14:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:14:57,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:14:57,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:14:57,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:14:57,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:14:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:14:57,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:14:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:14:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:14:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:14:57,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:14:57,683 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 12:14:57,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162842581] [2020-09-21 12:14:57,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:14:57,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:14:57,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32188590] [2020-09-21 12:14:57,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:14:57,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:14:57,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:14:57,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:14:57,689 INFO L87 Difference]: Start difference. First operand 397 states and 485 transitions. Second operand 7 states. [2020-09-21 12:14:58,534 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:14:58,798 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:15:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:15:01,409 INFO L93 Difference]: Finished difference Result 1024 states and 1414 transitions. [2020-09-21 12:15:01,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 12:15:01,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-09-21 12:15:01,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:15:01,415 INFO L225 Difference]: With dead ends: 1024 [2020-09-21 12:15:01,416 INFO L226 Difference]: Without dead ends: 556 [2020-09-21 12:15:01,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:15:01,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-09-21 12:15:01,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 473. [2020-09-21 12:15:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-21 12:15:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 588 transitions. [2020-09-21 12:15:01,525 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 588 transitions. Word has length 68 [2020-09-21 12:15:01,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:15:01,526 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 588 transitions. [2020-09-21 12:15:01,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:15:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 588 transitions. [2020-09-21 12:15:01,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-21 12:15:01,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:15:01,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:15:01,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:15:01,528 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:15:01,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:15:01,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1538887545, now seen corresponding path program 1 times [2020-09-21 12:15:01,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:15:01,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661326574] [2020-09-21 12:15:01,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:15:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:02,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:02,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:02,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:02,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 12:15:02,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:15:02,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-09-21 12:15:02,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:02,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:15:02,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:15:02,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 12:15:02,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:02,884 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:15:02,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:15:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:02,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:15:03,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-21 12:15:03,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:15:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:15:03,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:15:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:15:03,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:15:03,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:15:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:15:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:15:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:15:03,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:15:03,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:15:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:15:03,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:15:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:15:03,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:15:03,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:15:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:15:03,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:15:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:15:03,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:15:03,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:15:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:15:03,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:15:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:15:03,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:15:03,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:15:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:15:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:15:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:15:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 12:15:03,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:15:03,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:15:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 12:15:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:15:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:15:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:15:03,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:15:03,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:15:03,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:15:03,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:15:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:15:03,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:15:03,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:15:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:15:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 12:15:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:15:03,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:15:03,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:15:03,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:15:03,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:15:03,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 12:15:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:15:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:15:03,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:15:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:15:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:15:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:15:03,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-21 12:15:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:15:03,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:15:03,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:15:03,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:15:03,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:15:03,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:15:03,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:15:03,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:15:03,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:15:03,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:15:03,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:15:03,189 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 12:15:03,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661326574] [2020-09-21 12:15:03,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:15:03,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:15:03,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184701985] [2020-09-21 12:15:03,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:15:03,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:15:03,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:15:03,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:15:03,193 INFO L87 Difference]: Start difference. First operand 473 states and 588 transitions. Second operand 6 states. [2020-09-21 12:15:03,543 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:15:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:15:03,929 INFO L93 Difference]: Finished difference Result 524 states and 650 transitions. [2020-09-21 12:15:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:15:03,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-09-21 12:15:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:15:03,931 INFO L225 Difference]: With dead ends: 524 [2020-09-21 12:15:03,931 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:15:03,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:15:03,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:15:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:15:03,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:15:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:15:03,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2020-09-21 12:15:03,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:15:03,934 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:15:03,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:15:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:15:03,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:15:03,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:15:03,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:15:04,125 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:04,301 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:04,472 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:04,655 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:05,163 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 12:15:05,657 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 12:15:06,007 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:06,342 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:07,037 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 205 [2020-09-21 12:15:07,200 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:07,358 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:07,538 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:07,716 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:15:07,877 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:08,032 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:08,186 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:08,505 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-21 12:15:08,662 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:09,370 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 207 [2020-09-21 12:15:09,523 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:09,842 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-21 12:15:09,996 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:10,149 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:10,468 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-21 12:15:10,623 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:10,776 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:10,929 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:11,084 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:11,237 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:11,392 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:11,722 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-21 12:15:11,880 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:12,047 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:12,202 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:12,738 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 198 [2020-09-21 12:15:12,897 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:13,054 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:13,231 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:13,384 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:13,702 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-21 12:15:13,854 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:14,008 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:14,181 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:14,499 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:14,820 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-21 12:15:15,077 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-21 12:15:15,395 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:15,716 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:16,035 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-21 12:15:16,354 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-21 12:15:16,672 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:16,989 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:17,311 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:17,629 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:17,949 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-21 12:15:18,266 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:18,584 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 12:15:18,753 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:18,906 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:19,058 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:19,211 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:19,372 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:19,530 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:20,000 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 12:15:20,462 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 12:15:20,799 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:21,134 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:21,305 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:21,467 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:21,625 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:21,782 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:22,434 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 204 [2020-09-21 12:15:22,601 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:22,771 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:22,924 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:23,076 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:23,544 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 197 [2020-09-21 12:15:23,697 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:23,864 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:15:24,018 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:24,173 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:24,504 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-21 12:15:24,665 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:15:24,823 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:15:25,163 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:25,545 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-21 12:15:26,021 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-09-21 12:15:26,351 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:26,685 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:27,065 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-21 12:15:27,445 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-21 12:15:27,779 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:28,109 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:28,441 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:28,772 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:29,153 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-21 12:15:29,482 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:29,812 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-21 12:15:30,451 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 19