/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:03:32,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:03:32,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:03:32,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:03:32,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:03:32,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:03:32,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:03:32,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:03:32,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:03:32,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:03:32,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:03:32,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:03:32,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:03:32,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:03:32,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:03:32,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:03:32,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:03:32,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:03:32,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:03:32,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:03:32,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:03:32,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:03:32,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:03:32,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:03:32,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:03:32,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:03:32,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:03:32,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:03:32,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:03:32,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:03:32,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:03:32,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:03:32,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:03:32,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:03:32,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:03:32,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:03:32,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:03:32,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:03:32,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:03:32,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:03:32,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:03:32,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:03:32,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:03:32,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:03:32,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:03:32,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:03:32,149 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:03:32,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:03:32,149 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:03:32,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:03:32,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:03:32,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:03:32,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:03:32,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:03:32,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:03:32,151 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:03:32,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:03:32,151 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:03:32,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:03:32,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:03:32,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:03:32,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:03:32,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:03:32,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:03:32,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:03:32,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:03:32,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:03:32,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:03:32,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:03:32,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:03:32,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:03:32,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=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=5000;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=5000;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=5000;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=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:03:32,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:03:32,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:03:32,669 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:03:32,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:03:32,674 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:03:32,675 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-24 18:03:32,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/626459895/46facd41507f4663bbe4af9ba813942a/FLAGb8e994403 [2020-09-24 18:03:33,387 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:03:33,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-24 18:03:33,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/626459895/46facd41507f4663bbe4af9ba813942a/FLAGb8e994403 [2020-09-24 18:03:33,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/626459895/46facd41507f4663bbe4af9ba813942a [2020-09-24 18:03:33,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:03:33,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:03:33,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:03:33,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:03:33,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:03:33,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:03:33" (1/1) ... [2020-09-24 18:03:33,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:33, skipping insertion in model container [2020-09-24 18:03:33,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:03:33" (1/1) ... [2020-09-24 18:03:33,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:03:33,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:03:34,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:03:34,202 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:03:34,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:03:34,479 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:03:34,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34 WrapperNode [2020-09-24 18:03:34,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:03:34,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:03:34,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:03:34,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:03:34,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... [2020-09-24 18:03:34,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... [2020-09-24 18:03:34,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... [2020-09-24 18:03:34,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... [2020-09-24 18:03:34,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... [2020-09-24 18:03:34,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... [2020-09-24 18:03:34,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... [2020-09-24 18:03:34,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:03:34,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:03:34,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:03:34,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:03:34,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:03:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:03:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:03:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:03:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:03:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:03:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:03:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:03:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:03:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:03:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:03:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:03:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:03:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:03:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:03:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:03:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:03:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:03:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:03:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:03:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:03:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:03:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:03:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:03:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:03:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:03:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:03:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:03:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:03:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 18:03:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:03:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:03:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:03:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:03:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:03:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:03:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:03:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:03:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:03:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:03:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:03:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:03:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:03:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:03:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:03:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:03:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:03:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:03:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:03:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:03:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:03:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:03:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:03:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:03:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:03:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:03:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:03:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:03:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:03:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:03:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:03:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:03:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:03:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:03:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:03:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:03:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:03:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:03:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:03:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:03:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:03:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:03:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:03:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:03:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:03:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:03:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:03:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:03:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:03:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:03:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:03:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:03:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:03:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:03:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:03:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:03:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:03:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 18:03:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:03:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:03:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:03:35,869 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:03:35,870 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:03:35,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:03:35 BoogieIcfgContainer [2020-09-24 18:03:35,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:03:35,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:03:35,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:03:35,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:03:35,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:03:33" (1/3) ... [2020-09-24 18:03:35,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b020814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:03:35, skipping insertion in model container [2020-09-24 18:03:35,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:03:34" (2/3) ... [2020-09-24 18:03:35,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b020814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:03:35, skipping insertion in model container [2020-09-24 18:03:35,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:03:35" (3/3) ... [2020-09-24 18:03:35,891 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2020-09-24 18:03:35,903 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:03:35,916 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:03:35,939 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:03:35,978 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:03:35,978 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:03:35,978 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:03:35,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:03:35,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:03:35,979 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:03:35,979 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:03:35,979 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:03:36,003 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-09-24 18:03:36,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:03:36,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:36,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:36,022 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:36,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:36,029 INFO L82 PathProgramCache]: Analyzing trace with hash -769040823, now seen corresponding path program 1 times [2020-09-24 18:03:36,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:36,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926585483] [2020-09-24 18:03:36,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:36,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:36,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:38,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:39,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:41,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:03:41,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:03:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 18:03:41,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:03:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:41,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:03:41,845 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:41,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:41,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:41,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:41,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:41,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:41,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 18:03:41,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:41,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:41,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:41,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:41,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:42,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:42,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:42,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:42,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:42,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:42,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:42,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:42,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:42,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:42,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:42,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:42,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:42,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:42,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:42,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:42,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:42,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:42,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:42,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:42,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:42,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:42,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:42,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:42,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:42,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:42,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:42,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:42,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:42,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:03:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:42,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:42,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:42,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:42,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:42,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:42,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:42,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:42,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:03:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:42,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:42,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:42,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:42,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:42,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:42,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:42,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:42,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:03:42,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926585483] [2020-09-24 18:03:42,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:42,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:03:42,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433341378] [2020-09-24 18:03:42,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:03:42,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:42,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:03:42,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:03:42,159 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 3 states. [2020-09-24 18:03:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:43,508 INFO L93 Difference]: Finished difference Result 424 states and 508 transitions. [2020-09-24 18:03:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:03:43,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:03:43,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:43,530 INFO L225 Difference]: With dead ends: 424 [2020-09-24 18:03:43,531 INFO L226 Difference]: Without dead ends: 270 [2020-09-24 18:03:43,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:03:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-24 18:03:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 228. [2020-09-24 18:03:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-24 18:03:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 246 transitions. [2020-09-24 18:03:43,647 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 246 transitions. Word has length 142 [2020-09-24 18:03:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:43,648 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 246 transitions. [2020-09-24 18:03:43,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:03:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 246 transitions. [2020-09-24 18:03:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:03:43,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:43,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:43,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:03:43,656 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:43,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:43,659 INFO L82 PathProgramCache]: Analyzing trace with hash -957291699, now seen corresponding path program 1 times [2020-09-24 18:03:43,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:43,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519132149] [2020-09-24 18:03:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:43,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:45,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:45,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:46,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:48,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:48,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:03:48,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:03:48,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 18:03:48,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:03:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:03:48,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 18:03:49,114 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:49,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:49,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:49,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:49,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 18:03:49,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:49,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:49,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:49,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:49,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:49,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:49,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:49,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:49,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:49,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:49,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:49,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:49,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:49,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:49,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:03:49,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:49,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:03:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:49,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:49,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:49,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:49,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:03:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:49,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:49,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:49,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:49,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:49,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:49,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:03:49,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519132149] [2020-09-24 18:03:49,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:49,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:03:49,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620892403] [2020-09-24 18:03:49,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:03:49,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:49,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:03:49,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:03:49,350 INFO L87 Difference]: Start difference. First operand 228 states and 246 transitions. Second operand 4 states. [2020-09-24 18:03:49,952 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:03:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:50,688 INFO L93 Difference]: Finished difference Result 331 states and 371 transitions. [2020-09-24 18:03:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:03:50,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:03:50,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:50,694 INFO L225 Difference]: With dead ends: 331 [2020-09-24 18:03:50,694 INFO L226 Difference]: Without dead ends: 253 [2020-09-24 18:03:50,696 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 [2020-09-24 18:03:50,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-24 18:03:50,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 218. [2020-09-24 18:03:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-24 18:03:50,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2020-09-24 18:03:50,738 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 143 [2020-09-24 18:03:50,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:50,739 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2020-09-24 18:03:50,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:03:50,739 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2020-09-24 18:03:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 18:03:50,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:50,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:50,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:03:50,743 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:50,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:50,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1898419565, now seen corresponding path program 1 times [2020-09-24 18:03:50,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:50,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986450094] [2020-09-24 18:03:50,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:50,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:51,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:53,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:55,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:55,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:03:55,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:03:55,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 18:03:55,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:55,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:55,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:03:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:03:55,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:56,228 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:56,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:56,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 18:03:56,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:56,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:56,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:56,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:56,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:56,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:56,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:56,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:56,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:56,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:56,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:56,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:56,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:56,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:56,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:56,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:56,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:56,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:56,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:56,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:56,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:56,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:56,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:56,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:03:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:03:56,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:56,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:03:56,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:56,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:03:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:56,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:03:56,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:56,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:03:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:56,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:56,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:56,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:56,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:56,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:03:56,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:56,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:03:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:03:56,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986450094] [2020-09-24 18:03:56,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:56,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:03:56,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223853760] [2020-09-24 18:03:56,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:03:56,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:56,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:03:56,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:03:56,472 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand 5 states. [2020-09-24 18:03:57,169 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:58,945 INFO L93 Difference]: Finished difference Result 500 states and 580 transitions. [2020-09-24 18:03:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:03:58,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 18:03:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:58,951 INFO L225 Difference]: With dead ends: 500 [2020-09-24 18:03:58,952 INFO L226 Difference]: Without dead ends: 392 [2020-09-24 18:03:58,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:03:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-09-24 18:03:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 316. [2020-09-24 18:03:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-09-24 18:03:59,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 347 transitions. [2020-09-24 18:03:59,019 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 347 transitions. Word has length 156 [2020-09-24 18:03:59,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:59,020 INFO L479 AbstractCegarLoop]: Abstraction has 316 states and 347 transitions. [2020-09-24 18:03:59,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:03:59,020 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 347 transitions. [2020-09-24 18:03:59,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:03:59,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:59,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:59,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:03:59,024 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:59,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1641670536, now seen corresponding path program 1 times [2020-09-24 18:03:59,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:59,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85136438] [2020-09-24 18:03:59,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:59,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:00,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:02,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 18:04:04,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:04:04,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 18:04:04,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:04:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 18:04:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:04:04,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,439 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:04,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:04:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:04:04,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 18:04:04,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:04:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:04,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:04:04,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:04:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:04,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:04:04,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:04:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:04,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:04,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:04:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:04,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:04:04,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:04:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:04:04,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:04,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:04:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:04,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:04,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:04:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:04:04,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 18:04:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:04,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:04,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:04,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:04,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:04,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:04:04,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:04,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:04:04,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:04,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:04:04,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:04:04,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85136438] [2020-09-24 18:04:04,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:04:04,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:04:04,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432462218] [2020-09-24 18:04:04,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:04:04,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:04:04,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:04:04,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:04:04,705 INFO L87 Difference]: Start difference. First operand 316 states and 347 transitions. Second operand 9 states. [2020-09-24 18:04:05,273 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:06,445 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:06,755 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:04:07,083 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:07,449 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:04:07,761 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:04:07,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:04:07,994 INFO L93 Difference]: Finished difference Result 515 states and 600 transitions. [2020-09-24 18:04:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:04:07,995 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 18:04:07,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:04:07,996 INFO L225 Difference]: With dead ends: 515 [2020-09-24 18:04:07,996 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:04:08,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:04:08,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:04:08,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:04:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:04:08,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:04:08,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-24 18:04:08,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:04:08,001 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:04:08,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:04:08,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:04:08,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:04:08,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:04:08,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:04:08,208 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:04:08,372 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:08,535 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:08,699 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:08,856 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:09,018 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:09,177 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:09,455 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-24 18:04:09,607 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:09,759 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:10,020 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:10,275 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:10,528 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:10,761 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 18:04:10,865 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:04:11,014 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:11,160 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:11,462 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:04:11,761 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:04:12,066 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 18:04:12,207 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:12,359 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:12,505 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:12,653 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:12,802 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:12,951 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:13,096 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:13,246 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:13,392 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:13,541 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:13,690 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:13,838 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:13,982 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:14,132 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:14,283 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:14,441 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:14,589 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:14,733 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:14,882 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:15,031 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:15,180 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:15,325 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:15,474 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:15,624 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:15,893 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:16,141 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:16,383 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:16,631 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 18:04:16,862 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 18:04:17,015 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:17,167 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:17,312 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:17,461 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:17,610 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:17,812 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 18:04:17,963 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:18,137 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:18,284 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:18,432 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:04:18,576 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:04:19,015 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-24 18:04:19,221 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:04:19,431 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:04:19,633 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:04:20,046 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-24 18:04:20,450 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 18:04:20,665 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:20,857 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-24 18:04:21,128 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:21,346 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:21,662 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 18:04:21,871 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:22,265 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:04:22,491 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:04:22,865 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 18:04:23,069 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:23,270 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 18:04:23,511 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 18:04:23,911 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11