/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:51:53,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:51:53,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:51:53,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:51:53,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:51:53,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:51:53,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:51:53,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:51:53,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:51:53,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:51:53,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:51:53,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:51:53,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:51:53,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:51:53,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:51:53,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:51:53,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:51:53,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:51:53,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:51:53,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:51:53,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:51:53,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:51:53,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:51:53,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:51:53,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:51:53,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:51:53,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:51:53,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:51:53,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:51:53,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:51:53,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:51:53,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:51:53,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:51:53,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:51:53,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:51:53,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:51:53,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:51:53,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:51:53,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:51:53,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:51:53,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:51:53,905 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 [2020-09-25 10:51:53,964 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:51:53,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:51:53,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:51:53,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:51:53,966 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:51:53,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:51:53,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:51:53,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:51:53,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:51:53,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:51:53,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:51:53,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:51:53,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:51:53,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:51:53,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:51:53,969 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:51:53,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:51:53,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:51:53,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:51:53,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:51:53,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:51:53,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:51:53,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:51:53,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:51:53,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:51:53,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:51:53,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:51:53,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:51:53,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:51:53,972 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:51:54,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:51:54,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:51:54,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:51:54,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:51:54,511 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:51:54,512 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 10:51:54,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b86e58c7/46b4e2e0b1394da8b5b18eb4b5f6cc3e/FLAGde33eb17d [2020-09-25 10:51:55,240 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:51:55,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 10:51:55,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b86e58c7/46b4e2e0b1394da8b5b18eb4b5f6cc3e/FLAGde33eb17d [2020-09-25 10:51:55,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b86e58c7/46b4e2e0b1394da8b5b18eb4b5f6cc3e [2020-09-25 10:51:55,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:51:55,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:51:55,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:55,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:51:55,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:51:55,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:55" (1/1) ... [2020-09-25 10:51:55,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef00bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:55, skipping insertion in model container [2020-09-25 10:51:55,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:55" (1/1) ... [2020-09-25 10:51:55,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:51:55,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:51:55,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:56,088 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:51:56,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:56,255 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:51:56,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56 WrapperNode [2020-09-25 10:51:56,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:56,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:51:56,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:51:56,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:51:56,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (1/1) ... [2020-09-25 10:51:56,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (1/1) ... [2020-09-25 10:51:56,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (1/1) ... [2020-09-25 10:51:56,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (1/1) ... [2020-09-25 10:51:56,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (1/1) ... [2020-09-25 10:51:56,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (1/1) ... [2020-09-25 10:51:56,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (1/1) ... [2020-09-25 10:51:56,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:51:56,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:51:56,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:51:56,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:51:56,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (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 [2020-09-25 10:51:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:51:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:51:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:51:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:51:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:51:56,470 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:51:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:51:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:51:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:51:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:51:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:51:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:51:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:51:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:51:56,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:51:56,473 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:51:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:51:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:51:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:51:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:51:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:51:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:51:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:51:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:51:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:51:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:51:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:51:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:51:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:51:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:51:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:51:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:51:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:51:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:51:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:51:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:51:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:51:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:51:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:51:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:51:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:51:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:51:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:51:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:51:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:51:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:51:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:51:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:51:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:51:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:51:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:51:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:51:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:51:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:51:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:51:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:51:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:51:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:51:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:51:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:51:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:51:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:51:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:51:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:51:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:51:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:51:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:51:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:51:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:51:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:51:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:51:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:51:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:51:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:51:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:51:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:51:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:51:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:51:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:51:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:51:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:51:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:51:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:51:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:51:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:51:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:51:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:51:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:51:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:51:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:51:57,786 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:51:57,786 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:51:57,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:57 BoogieIcfgContainer [2020-09-25 10:51:57,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:51:57,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:51:57,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:51:57,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:51:57,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:51:55" (1/3) ... [2020-09-25 10:51:57,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d64515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:57, skipping insertion in model container [2020-09-25 10:51:57,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:56" (2/3) ... [2020-09-25 10:51:57,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d64515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:57, skipping insertion in model container [2020-09-25 10:51:57,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:57" (3/3) ... [2020-09-25 10:51:57,804 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-09-25 10:51:57,815 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:51:57,826 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:51:57,846 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:51:57,876 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:51:57,877 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:51:57,877 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:51:57,877 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:51:57,877 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:51:57,877 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:51:57,878 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:51:57,878 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:51:57,909 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 10:51:57,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:51:57,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:57,930 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] [2020-09-25 10:51:57,930 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:57,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:57,938 INFO L82 PathProgramCache]: Analyzing trace with hash 978294910, now seen corresponding path program 1 times [2020-09-25 10:51:57,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:57,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155013047] [2020-09-25 10:51:57,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:58,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:00,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:01,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:02,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:03,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:03,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:52:03,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:52:03,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 10:52:03,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:03,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:03,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:52:03,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 10:52:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:52:03,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:52:03,874 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:03,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:03,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:04,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:04,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:04,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 10:52:04,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:04,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:52:04,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:04,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:04,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:04,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:04,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:04,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:04,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:52:04,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:04,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:04,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:04,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:04,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:04,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:04,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:04,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:04,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:04,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:04,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:04,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:04,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:04,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:04,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:04,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:04,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:04,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:04,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:04,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:04,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:04,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:04,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:04,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:04,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:04,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:04,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:04,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:04,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:04,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:04,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:04,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:04,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:52:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:04,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:52:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:04,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:04,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:04,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:04,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:04,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:04,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:52:04,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155013047] [2020-09-25 10:52:04,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:52:04,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:52:04,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347861112] [2020-09-25 10:52:04,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:52:04,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:04,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:52:04,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:52:04,509 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 8 states. [2020-09-25 10:52:05,145 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:06,263 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:06,606 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:06,939 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:07,277 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:07,621 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:08,513 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:08,812 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:09,383 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:11,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:11,447 INFO L93 Difference]: Finished difference Result 768 states and 932 transitions. [2020-09-25 10:52:11,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:52:11,450 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:52:11,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:11,471 INFO L225 Difference]: With dead ends: 768 [2020-09-25 10:52:11,472 INFO L226 Difference]: Without dead ends: 517 [2020-09-25 10:52:11,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:52:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2020-09-25 10:52:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 453. [2020-09-25 10:52:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-09-25 10:52:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 507 transitions. [2020-09-25 10:52:11,657 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 507 transitions. Word has length 142 [2020-09-25 10:52:11,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:11,658 INFO L479 AbstractCegarLoop]: Abstraction has 453 states and 507 transitions. [2020-09-25 10:52:11,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:52:11,658 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 507 transitions. [2020-09-25 10:52:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 10:52:11,666 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:11,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:11,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:52:11,667 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:11,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:11,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1177769126, now seen corresponding path program 1 times [2020-09-25 10:52:11,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:11,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474472592] [2020-09-25 10:52:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:11,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:12,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:12,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:16,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:16,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:52:16,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:52:16,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4575 [2020-09-25 10:52:16,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:16,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:52:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 10:52:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 10:52:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:16,670 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:16,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:16,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:16,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:16,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 10:52:16,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:16,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:52:16,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:16,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:16,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:17,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:17,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:17,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:17,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:17,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:17,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:17,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:17,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:17,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:17,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:17,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:17,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:17,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:17,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:52:17,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:17,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:52:17,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:52:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:17,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:52:17,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:52:17,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:52:17,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 10:52:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:17,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:17,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:17,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:17,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:17,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 10:52:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:17,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:17,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:17,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:17,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:52:17,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:17,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:17,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:52:17,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:17,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:17,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:52:17,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474472592] [2020-09-25 10:52:17,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:52:17,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:52:17,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979942117] [2020-09-25 10:52:17,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:52:17,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:17,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:52:17,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:52:17,247 INFO L87 Difference]: Start difference. First operand 453 states and 507 transitions. Second operand 10 states. [2020-09-25 10:52:17,827 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:19,158 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:52:19,564 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:52:19,938 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:20,323 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:52:20,662 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:22,360 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:22,703 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:23,061 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:24,278 INFO L93 Difference]: Finished difference Result 1234 states and 1542 transitions. [2020-09-25 10:52:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 10:52:24,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 10:52:24,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:24,292 INFO L225 Difference]: With dead ends: 1234 [2020-09-25 10:52:24,292 INFO L226 Difference]: Without dead ends: 891 [2020-09-25 10:52:24,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 10:52:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-09-25 10:52:24,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 667. [2020-09-25 10:52:24,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-09-25 10:52:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 771 transitions. [2020-09-25 10:52:24,415 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 771 transitions. Word has length 161 [2020-09-25 10:52:24,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:24,416 INFO L479 AbstractCegarLoop]: Abstraction has 667 states and 771 transitions. [2020-09-25 10:52:24,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:52:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 771 transitions. [2020-09-25 10:52:24,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-09-25 10:52:24,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:24,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:24,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:52:24,424 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:24,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:24,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1514903846, now seen corresponding path program 1 times [2020-09-25 10:52:24,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:24,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608715149] [2020-09-25 10:52:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:24,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:24,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:24,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:24,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:25,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:25,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:29,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:29,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-09-25 10:52:29,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:52:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 10:52:29,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:29,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 10:52:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 10:52:29,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:29,805 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:29,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:29,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:29,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:29,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:29,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:29,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 10:52:29,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:29,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:29,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:29,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:29,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:29,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:29,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:29,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:52:29,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:29,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:29,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:29,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:29,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:29,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:29,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:52:29,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:29,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:29,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:29,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:29,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:30,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:30,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:30,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:52:30,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:52:30,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:30,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:52:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:52:30,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:30,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 10:52:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:52:30,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:52:30,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:30,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:52:30,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:52:30,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:52:30,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:52:30,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:30,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:52:30,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 10:52:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:52:30,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:52:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:52:30,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 10:52:30,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:52:30,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:30,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:30,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:30,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 10:52:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:52:30,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:52:30,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 10:52:30,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:52:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 10:52:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:52:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 10:52:30,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 10:52:30,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:52:30,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 10:52:30,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:52:30,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 10:52:30,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 10:52:30,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:52:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 10:52:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:52:30,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:30,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:52:30,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 10:52:30,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:52:30,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 10:52:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:30,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:52:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:52:30,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:52:30,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:30,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:52:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 10:52:30,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:52:30,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 10:52:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:52:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:52:30,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:30,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:52:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:30,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:30,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:30,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 10:52:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:52:30,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:30,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-09-25 10:52:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:30,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:30,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:30,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-09-25 10:52:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:30,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:30,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:30,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:30,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:30,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:30,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 10:52:30,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608715149] [2020-09-25 10:52:30,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:52:30,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 10:52:30,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009331028] [2020-09-25 10:52:30,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:52:30,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:30,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:52:30,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:52:30,986 INFO L87 Difference]: Start difference. First operand 667 states and 771 transitions. Second operand 13 states. [2020-09-25 10:52:32,225 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:33,162 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:33,499 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:52:33,864 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:52:34,317 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:34,693 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:52:35,038 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:38,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:38,768 INFO L93 Difference]: Finished difference Result 2474 states and 3438 transitions. [2020-09-25 10:52:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 10:52:38,769 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 275 [2020-09-25 10:52:38,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:38,795 INFO L225 Difference]: With dead ends: 2474 [2020-09-25 10:52:38,796 INFO L226 Difference]: Without dead ends: 1892 [2020-09-25 10:52:38,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 10:52:38,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2020-09-25 10:52:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 915. [2020-09-25 10:52:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-09-25 10:52:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1063 transitions. [2020-09-25 10:52:38,991 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1063 transitions. Word has length 275 [2020-09-25 10:52:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:38,992 INFO L479 AbstractCegarLoop]: Abstraction has 915 states and 1063 transitions. [2020-09-25 10:52:38,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:52:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1063 transitions. [2020-09-25 10:52:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 10:52:38,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:38,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:38,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:52:38,998 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:38,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:38,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1739088498, now seen corresponding path program 1 times [2020-09-25 10:52:38,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:38,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270567659] [2020-09-25 10:52:38,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:39,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:39,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:42,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking...