/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:12:02,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:12:02,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:12:02,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:12:02,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:12:02,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:12:02,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:12:02,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:12:02,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:12:02,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:12:02,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:12:02,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:12:02,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:12:02,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:12:02,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:12:02,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:12:02,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:12:02,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:12:02,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:12:02,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:12:02,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:12:02,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:12:02,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:12:02,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:12:02,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:12:02,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:12:02,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:12:02,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:12:02,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:12:02,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:12:02,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:12:02,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:12:02,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:12:02,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:12:02,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:12:02,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:12:02,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:12:02,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:12:02,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:12:02,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:12:02,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:12:02,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:12:02,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:12:02,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:12:02,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:12:02,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:12:02,238 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:12:02,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:12:02,239 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:12:02,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:12:02,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:12:02,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:12:02,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:12:02,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:12:02,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:12:02,243 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:12:02,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:12:02,243 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:12:02,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:12:02,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:12:02,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:12:02,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:12:02,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:12:02,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:12:02,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:12:02,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:12:02,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:12:02,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:12:02,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:12:02,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:12:02,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:12:02,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:12:02,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:12:02,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:12:02,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:12:02,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:12:02,724 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:12:02,725 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-24 20:12:02,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c50132ed/5db5759fa4204e79b7a4f40f371eedca/FLAG48853633b [2020-09-24 20:12:03,440 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:12:03,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-24 20:12:03,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c50132ed/5db5759fa4204e79b7a4f40f371eedca/FLAG48853633b [2020-09-24 20:12:03,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c50132ed/5db5759fa4204e79b7a4f40f371eedca [2020-09-24 20:12:03,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:12:03,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:12:03,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:03,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:12:03,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:12:03,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:03" (1/1) ... [2020-09-24 20:12:03,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:03, skipping insertion in model container [2020-09-24 20:12:03,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:03" (1/1) ... [2020-09-24 20:12:03,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:12:03,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:12:04,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:04,215 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:12:04,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:04,472 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:12:04,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04 WrapperNode [2020-09-24 20:12:04,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:04,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:12:04,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:12:04,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:12:04,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:12:04,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:12:04,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:12:04,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:12:04,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:12:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:12:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:12:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:12:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:12:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:12:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:12:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:12:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:12:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:12:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:12:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:12:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:12:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:12:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:12:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:12:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:12:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:12:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:12:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:12:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:12:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:12:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:12:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:12:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:12:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:12:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:12:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:12:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:12:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:12:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:12:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:12:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:12:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:12:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:12:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:12:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:12:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:12:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:12:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:12:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:12:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:12:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:12:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:12:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:12:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:12:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:12:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:12:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:12:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:12:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:12:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:12:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:12:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:12:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:12:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:12:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:12:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:12:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:12:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:12:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:12:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:12:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:12:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:12:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:12:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:12:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:12:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:12:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:12:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:12:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:12:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:12:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:12:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:12:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:12:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:12:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:12:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:12:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:12:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:12:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:12:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:12:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:12:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:12:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:12:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:12:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:12:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:12:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:12:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:12:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:12:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:12:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:12:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:12:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:12:05,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:12:05,866 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:12:05,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:05 BoogieIcfgContainer [2020-09-24 20:12:05,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:12:05,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:12:05,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:12:05,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:12:05,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:03" (1/3) ... [2020-09-24 20:12:05,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4508a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:05, skipping insertion in model container [2020-09-24 20:12:05,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (2/3) ... [2020-09-24 20:12:05,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4508a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:05, skipping insertion in model container [2020-09-24 20:12:05,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:05" (3/3) ... [2020-09-24 20:12:05,885 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2020-09-24 20:12:05,897 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:12:05,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:12:05,935 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:12:05,973 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:12:05,974 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:12:05,974 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:12:05,974 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:12:05,974 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:12:05,974 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:12:05,975 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:12:05,975 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:12:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-09-24 20:12:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:12:06,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:06,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:12:06,028 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:06,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:06,037 INFO L82 PathProgramCache]: Analyzing trace with hash -722874537, now seen corresponding path program 1 times [2020-09-24 20:12:06,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:06,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083963334] [2020-09-24 20:12:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:06,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:06,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:08,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:09,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:09,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:11,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:11,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:12:11,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:12:11,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 20:12:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:12:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:12:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-24 20:12:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:12:11,995 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:12:12,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:12,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-24 20:12:12,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:12:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:12,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:12:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:12,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:12,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:12,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:12:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:12,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:12,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:12:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:12,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:12:12,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:12:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:12,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:12,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:12:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:12,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:12,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:12:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:12:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:12,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:12:12,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:12,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:12,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:12:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:12,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:12,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:12,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:12:12,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083963334] [2020-09-24 20:12:12,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:12,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:12:12,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894485891] [2020-09-24 20:12:12,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:12:12,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:12,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:12:12,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:12:12,684 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 9 states. [2020-09-24 20:12:13,228 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:14,353 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:14,730 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:15,115 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:15,532 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:12:15,885 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:12:16,744 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:17,075 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:17,635 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:19,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:19,368 INFO L93 Difference]: Finished difference Result 783 states and 944 transitions. [2020-09-24 20:12:19,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:12:19,370 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:12:19,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:19,393 INFO L225 Difference]: With dead ends: 783 [2020-09-24 20:12:19,393 INFO L226 Difference]: Without dead ends: 542 [2020-09-24 20:12:19,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:12:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-24 20:12:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 463. [2020-09-24 20:12:19,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-24 20:12:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 518 transitions. [2020-09-24 20:12:19,562 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 518 transitions. Word has length 148 [2020-09-24 20:12:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:19,563 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 518 transitions. [2020-09-24 20:12:19,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:12:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 518 transitions. [2020-09-24 20:12:19,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 20:12:19,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:19,569 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, 1, 1, 1, 1, 1, 1] [2020-09-24 20:12:19,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:12:19,570 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:19,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2064795740, now seen corresponding path program 1 times [2020-09-24 20:12:19,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:19,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464270349] [2020-09-24 20:12:19,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:19,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:19,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:20,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:22,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:24,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:24,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-24 20:12:24,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:12:24,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 20:12:24,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:12:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:12:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 20:12:24,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:24,997 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:12:24,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:25,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-24 20:12:25,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:12:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:12:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:25,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:25,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:25,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:12:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:25,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:25,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:12:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:25,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:12:25,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:25,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:25,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:12:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:25,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:25,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:12:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:25,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:12:25,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:12:25,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:25,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:12:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:25,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:12:25,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:12:25,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:12:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:25,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:12:25,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:12:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:12:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:25,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:25,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:25,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:12:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:25,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:12:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:12:25,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464270349] [2020-09-24 20:12:25,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:25,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:12:25,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88984385] [2020-09-24 20:12:25,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:12:25,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:25,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:12:25,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:12:25,572 INFO L87 Difference]: Start difference. First operand 463 states and 518 transitions. Second operand 11 states. [2020-09-24 20:12:26,099 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:27,430 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:27,745 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:28,165 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:28,533 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:28,841 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:30,607 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:30,916 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:31,279 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:32,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:32,264 INFO L93 Difference]: Finished difference Result 1259 states and 1571 transitions. [2020-09-24 20:12:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 20:12:32,265 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-24 20:12:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:32,276 INFO L225 Difference]: With dead ends: 1259 [2020-09-24 20:12:32,276 INFO L226 Difference]: Without dead ends: 911 [2020-09-24 20:12:32,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 20:12:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-09-24 20:12:32,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 660. [2020-09-24 20:12:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-09-24 20:12:32,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 747 transitions. [2020-09-24 20:12:32,419 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 747 transitions. Word has length 167 [2020-09-24 20:12:32,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:32,420 INFO L479 AbstractCegarLoop]: Abstraction has 660 states and 747 transitions. [2020-09-24 20:12:32,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:12:32,421 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 747 transitions. [2020-09-24 20:12:32,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-09-24 20:12:32,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:32,426 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:12:32,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:12:32,426 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:32,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:32,427 INFO L82 PathProgramCache]: Analyzing trace with hash 250132912, now seen corresponding path program 1 times [2020-09-24 20:12:32,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:32,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903044769] [2020-09-24 20:12:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:32,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:33,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:35,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-24 20:12:37,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 20:12:37,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-09-24 20:12:37,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 20:12:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:12:37,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:37,838 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:12:37,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:37,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 20:12:37,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:12:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:38,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:38,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:12:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:38,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:12:38,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:12:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:38,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:38,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:12:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:38,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:12:38,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:12:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:38,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:38,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:12:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:38,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:38,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:38,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:12:38,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:12:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:38,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:38,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:12:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 20:12:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:12:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:12:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:12:38,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:12:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:12:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:12:38,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:12:38,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:12:38,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:38,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:12:38,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:12:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:12:38,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 20:12:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:12:38,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:12:38,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:12:38,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:12:38,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:12:38,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:12:38,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:12:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:38,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:38,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:12:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:12:38,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 20:12:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:38,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:12:38,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 20:12:38,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:12:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:12:38,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 20:12:38,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:12:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:38,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:12:38,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 20:12:38,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:12:38,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:38,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:12:38,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:12:38,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:38,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:12:38,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:12:39,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:12:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:39,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:39,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:39,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:12:39,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:39,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:12:39,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:39,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:39,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:12:39,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:12:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:39,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:39,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:39,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:12:39,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:39,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:12:39,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:39,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:39,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:12:39,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:39,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:39,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:12:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:39,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:39,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:39,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:12:39,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:39,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:39,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:39,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:39,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:12:39,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:12:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:39,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:39,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:39,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:39,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:12:39,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:12:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:39,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:39,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:39,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:39,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:12:39,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:39,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:39,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:39,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:39,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:39,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-09-24 20:12:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:39,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:39,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:39,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:39,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:12:39,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:39,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-09-24 20:12:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:39,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:39,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:39,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:39,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:39,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:39,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:39,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 31 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-24 20:12:39,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903044769] [2020-09-24 20:12:39,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:12:39,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 20:12:39,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145698581] [2020-09-24 20:12:39,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 20:12:39,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:39,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 20:12:39,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-09-24 20:12:39,375 INFO L87 Difference]: Start difference. First operand 660 states and 747 transitions. Second operand 23 states. [2020-09-24 20:12:40,005 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:41,414 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:42,078 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:42,442 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:42,858 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:43,269 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:43,605 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:43,942 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:44,290 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:44,762 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:45,208 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:45,578 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:46,340 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:12:46,750 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:12:47,143 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 20:12:47,574 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:12:48,002 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:48,377 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:12:48,753 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:12:49,153 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:12:49,528 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 20:12:50,067 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:50,543 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:12:50,929 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194