/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=SHALLOWEST --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_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:30:04,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:30:04,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:30:04,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:30:04,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:30:04,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:30:04,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:30:04,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:30:04,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:30:04,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:30:04,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:30:04,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:30:04,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:30:04,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:30:04,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:30:04,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:30:04,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:30:04,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:30:04,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:30:04,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:30:04,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:30:04,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:30:04,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:30:04,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:30:04,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:30:04,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:30:04,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:30:04,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:30:04,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:30:04,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:30:04,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:30:04,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:30:04,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:30:04,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:30:04,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:30:04,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:30:04,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:30:04,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:30:04,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:30:04,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:30:04,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:30:04,835 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 23:30:04,894 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:30:04,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:30:04,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:30:04,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:30:04,897 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:30:04,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:30:04,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:30:04,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:30:04,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:30:04,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:30:04,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:30:04,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:30:04,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:30:04,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:30:04,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:30:04,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:30:04,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:30:04,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:30:04,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:30:04,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:30:04,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:30:04,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:30:04,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:30:04,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:30:04,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:30:04,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:30:04,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:30:04,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:30:04,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:30:04,903 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:30:05,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:30:05,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:30:05,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:30:05,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:30:05,402 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:30:05,403 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-24 23:30:05,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91940fa32/2e3edb5ba90f479cb25843a607963b5d/FLAGdc145a055 [2020-09-24 23:30:06,207 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:30:06,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-24 23:30:06,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91940fa32/2e3edb5ba90f479cb25843a607963b5d/FLAGdc145a055 [2020-09-24 23:30:06,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91940fa32/2e3edb5ba90f479cb25843a607963b5d [2020-09-24 23:30:06,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:30:06,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:30:06,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:06,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:30:06,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:30:06,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:06" (1/1) ... [2020-09-24 23:30:06,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:06, skipping insertion in model container [2020-09-24 23:30:06,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:06" (1/1) ... [2020-09-24 23:30:06,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:30:06,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:30:07,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:07,075 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:30:07,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:07,220 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:30:07,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07 WrapperNode [2020-09-24 23:30:07,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:07,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:30:07,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:30:07,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:30:07,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (1/1) ... [2020-09-24 23:30:07,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (1/1) ... [2020-09-24 23:30:07,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (1/1) ... [2020-09-24 23:30:07,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (1/1) ... [2020-09-24 23:30:07,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (1/1) ... [2020-09-24 23:30:07,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (1/1) ... [2020-09-24 23:30:07,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (1/1) ... [2020-09-24 23:30:07,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:30:07,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:30:07,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:30:07,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:30:07,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (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 23:30:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:30:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:30:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:30:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:30:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:30:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:30:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:30:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:30:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:30:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:30:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:30:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:30:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:30:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:30:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:30:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:30:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:30:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:30:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:30:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:30:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:30:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:30:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:30:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:30:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:30:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:30:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:30:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:30:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:30:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:30:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:30:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:30:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:30:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:30:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:30:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:30:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:30:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:30:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:30:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:30:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:30:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:30:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:30:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:30:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:30:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:30:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:30:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:30:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:30:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:30:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:30:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:30:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:30:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:30:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:30:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:30:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:30:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:30:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:30:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:30:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:30:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:30:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:30:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:30:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:30:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:30:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:30:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:30:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:30:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:30:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:30:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:30:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:30:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:30:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:30:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:30:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:30:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:30:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:30:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:30:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:30:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:30:08,642 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:30:08,642 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:30:08,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:08 BoogieIcfgContainer [2020-09-24 23:30:08,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:30:08,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:30:08,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:30:08,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:30:08,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:30:06" (1/3) ... [2020-09-24 23:30:08,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2705e71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:08, skipping insertion in model container [2020-09-24 23:30:08,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:07" (2/3) ... [2020-09-24 23:30:08,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2705e71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:08, skipping insertion in model container [2020-09-24 23:30:08,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:08" (3/3) ... [2020-09-24 23:30:08,660 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-09-24 23:30:08,672 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:30:08,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:30:08,708 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:30:08,743 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:30:08,744 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:30:08,744 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:30:08,744 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:30:08,744 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:30:08,744 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:30:08,744 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:30:08,745 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:30:08,776 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-24 23:30:08,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:30:08,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:08,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:08,796 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:08,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:08,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1378033390, now seen corresponding path program 1 times [2020-09-24 23:30:08,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:08,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709715708] [2020-09-24 23:30:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:09,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:09,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:10,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:14,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:14,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:30:14,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:30:14,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 23:30:14,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:30:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:30:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 23:30:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:30:14,734 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:14,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:14,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:15,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:15,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:15,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-24 23:30:15,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:15,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:30:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:15,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:15,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:15,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:15,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:15,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:15,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:15,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:15,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:15,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:30:15,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:15,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:15,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:15,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:15,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:15,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:15,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:15,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:15,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:15,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:15,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:15,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:15,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:15,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:15,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:15,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:15,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:30:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:15,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:15,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:15,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:15,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:15,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:15,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:15,289 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 23:30:15,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709715708] [2020-09-24 23:30:15,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:15,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:30:15,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317129738] [2020-09-24 23:30:15,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:30:15,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:15,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:30:15,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:30:15,322 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 8 states. [2020-09-24 23:30:15,901 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:16,972 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:17,359 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:17,733 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:18,098 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:18,462 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:19,188 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:19,530 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:20,075 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:21,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:21,482 INFO L93 Difference]: Finished difference Result 639 states and 775 transitions. [2020-09-24 23:30:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:30:21,487 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:30:21,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:21,508 INFO L225 Difference]: With dead ends: 639 [2020-09-24 23:30:21,508 INFO L226 Difference]: Without dead ends: 429 [2020-09-24 23:30:21,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:30:21,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-24 23:30:21,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 371. [2020-09-24 23:30:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-24 23:30:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 409 transitions. [2020-09-24 23:30:21,649 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 409 transitions. Word has length 142 [2020-09-24 23:30:21,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:21,650 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 409 transitions. [2020-09-24 23:30:21,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:30:21,651 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 409 transitions. [2020-09-24 23:30:21,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:30:21,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:21,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:21,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:30:21,657 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:21,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:21,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1097537555, now seen corresponding path program 1 times [2020-09-24 23:30:21,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:21,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368454308] [2020-09-24 23:30:21,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:21,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:24,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 23:30:26,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:30:26,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:30:26,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:30:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:30:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:30:26,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,078 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:27,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:27,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-24 23:30:27,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:30:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:27,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:27,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:27,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:27,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:27,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:27,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:27,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:30:27,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:27,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:27,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:27,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:27,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:27,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:27,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:27,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:30:27,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:30:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:27,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:27,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:30:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:27,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:27,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:27,573 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 23:30:27,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368454308] [2020-09-24 23:30:27,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:27,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:30:27,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979537565] [2020-09-24 23:30:27,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:30:27,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:27,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:30:27,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:30:27,578 INFO L87 Difference]: Start difference. First operand 371 states and 409 transitions. Second operand 9 states. [2020-09-24 23:30:28,046 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:29,401 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:29,723 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:30:30,047 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:30,350 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:30,644 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:31,946 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:32,291 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:32,619 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:33,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:33,201 INFO L93 Difference]: Finished difference Result 886 states and 1074 transitions. [2020-09-24 23:30:33,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:30:33,202 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-24 23:30:33,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:33,211 INFO L225 Difference]: With dead ends: 886 [2020-09-24 23:30:33,212 INFO L226 Difference]: Without dead ends: 625 [2020-09-24 23:30:33,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:30:33,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-09-24 23:30:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 533. [2020-09-24 23:30:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-24 23:30:33,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 617 transitions. [2020-09-24 23:30:33,340 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 617 transitions. Word has length 157 [2020-09-24 23:30:33,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:33,341 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 617 transitions. [2020-09-24 23:30:33,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:30:33,341 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 617 transitions. [2020-09-24 23:30:33,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-09-24 23:30:33,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:33,346 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:33,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:30:33,347 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:33,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1959341444, now seen corresponding path program 1 times [2020-09-24 23:30:33,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:33,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952935449] [2020-09-24 23:30:33,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:37,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:38,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:38,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-09-24 23:30:38,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 23:30:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-24 23:30:38,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:30:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:30:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:30:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:38,755 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:38,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:38,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:39,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-24 23:30:39,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:30:39,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:39,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:39,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:39,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:39,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:39,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:39,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:39,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:39,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:39,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:39,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:39,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:39,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:39,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:39,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:39,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:39,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:30:39,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:30:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:30:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:30:39,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:30:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:30:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:30:39,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:30:39,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:30:39,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:30:39,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:39,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:39,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 23:30:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:30:39,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:30:39,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 23:30:39,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:30:39,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:30:39,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:39,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:39,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:39,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 23:30:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 23:30:39,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 23:30:39,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:30:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:30:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:39,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:39,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 23:30:39,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:30:39,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:39,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:39,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:39,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:39,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 23:30:39,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:30:39,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 23:30:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:39,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:30:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:30:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:39,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:30:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:39,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:39,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 23:30:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:39,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:39,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-24 23:30:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:39,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:39,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-09-24 23:30:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:39,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:39,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:39,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:39,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:39,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:39,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 23:30:39,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952935449] [2020-09-24 23:30:39,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:30:39,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:30:39,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973922568] [2020-09-24 23:30:39,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:30:39,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:39,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:30:39,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:30:39,829 INFO L87 Difference]: Start difference. First operand 533 states and 617 transitions. Second operand 13 states. [2020-09-24 23:30:40,379 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:41,443 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:42,104 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:42,451 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:42,791 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:30:43,164 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:43,544 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:43,880 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:44,249 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:44,580 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:44,933 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:30:45,372 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:45,816 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:46,177 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:48,945 INFO L93 Difference]: Finished difference Result 1853 states and 2458 transitions. [2020-09-24 23:30:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-24 23:30:48,946 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 261 [2020-09-24 23:30:48,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:48,959 INFO L225 Difference]: With dead ends: 1853 [2020-09-24 23:30:48,959 INFO L226 Difference]: Without dead ends: 1430 [2020-09-24 23:30:48,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2020-09-24 23:30:48,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2020-09-24 23:30:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 969. [2020-09-24 23:30:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2020-09-24 23:30:49,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1128 transitions. [2020-09-24 23:30:49,140 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1128 transitions. Word has length 261 [2020-09-24 23:30:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:49,140 INFO L479 AbstractCegarLoop]: Abstraction has 969 states and 1128 transitions. [2020-09-24 23:30:49,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:30:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1128 transitions. [2020-09-24 23:30:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 23:30:49,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:49,146 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 23:30:49,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:30:49,146 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:49,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1737035613, now seen corresponding path program 1 times [2020-09-24 23:30:49,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:49,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358815134] [2020-09-24 23:30:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:49,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:53,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:54,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 23:30:54,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:30:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 23:30:54,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:30:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 23:30:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 23:30:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:54,561 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:54,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:54,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:54,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:54,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 23:30:54,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:54,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:54,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:54,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:54,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:54,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:54,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:54,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:54,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:54,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:54,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:54,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:54,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:54,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:54,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:54,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:54,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:54,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:54,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:54,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:54,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:54,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:54,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:54,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:54,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:54,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:54,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:54,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:54,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:54,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:54,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:30:54,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:54,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 23:30:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 23:30:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-09-24 23:30:55,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:30:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:55,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:55,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 23:30:55,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:30:55,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:55,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:55,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:55,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:30:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:55,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:55,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:30:55,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 23:30:55,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:30:55,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 23:30:55,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:55,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:55,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:30:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:30:55,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:55,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:55,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:55,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:55,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:30:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:55,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:55,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:55,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:55,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 23:30:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:55,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:55,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:55,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:55,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 23:30:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:55,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 23:30:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:55,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:55,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:55,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:55,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:55,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:55,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:55,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:30:55,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358815134] [2020-09-24 23:30:55,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:55,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:30:55,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329225704] [2020-09-24 23:30:55,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:30:55,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:55,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:30:55,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:30:55,491 INFO L87 Difference]: Start difference. First operand 969 states and 1128 transitions. Second operand 10 states.