/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:06:29,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:06:29,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:06:29,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:06:29,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:06:29,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:06:29,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:06:29,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:06:29,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:06:29,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:06:29,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:06:29,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:06:29,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:06:29,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:06:29,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:06:29,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:06:29,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:06:29,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:06:29,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:06:29,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:06:29,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:06:29,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:06:29,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:06:29,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:06:29,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:06:29,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:06:29,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:06:29,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:06:29,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:06:29,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:06:29,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:06:29,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:06:29,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:06:29,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:06:29,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:06:29,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:06:29,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:06:29,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:06:29,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:06:29,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:06:29,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:06:29,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:06:29,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:06:29,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:06:29,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:06:29,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:06:29,970 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:06:29,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:06:29,971 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:06:29,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:06:29,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:06:29,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:06:29,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:06:29,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:06:29,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:06:29,973 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:06:29,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:06:29,974 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:06:29,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:06:29,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:06:29,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:06:29,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:06:29,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:06:29,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:06:29,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:06:29,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:06:29,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:06:29,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:06:29,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:06:29,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:06:29,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:06:29,977 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:06:30,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:06:30,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:06:30,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:06:30,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:06:30,485 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:06:30,486 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 19:06:30,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2bb117209/3bf7de5e04254311b46f5c1a09ef61cb/FLAGa369876a1 [2020-09-24 19:06:31,180 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:06:31,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 19:06:31,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2bb117209/3bf7de5e04254311b46f5c1a09ef61cb/FLAGa369876a1 [2020-09-24 19:06:31,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2bb117209/3bf7de5e04254311b46f5c1a09ef61cb [2020-09-24 19:06:31,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:06:31,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:06:31,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:06:31,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:06:31,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:06:31,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:06:31" (1/1) ... [2020-09-24 19:06:31,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:31, skipping insertion in model container [2020-09-24 19:06:31,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:06:31" (1/1) ... [2020-09-24 19:06:31,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:06:31,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:06:32,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:06:32,087 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:06:32,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:06:32,302 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:06:32,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32 WrapperNode [2020-09-24 19:06:32,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:06:32,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:06:32,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:06:32,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:06:32,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:06:32,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:06:32,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:06:32,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:06:32,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:06:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:06:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:06:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:06:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:06:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:06:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:06:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:06:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:06:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:06:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:06:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:06:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:06:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:06:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:06:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:06:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:06:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:06:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:06:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:06:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:06:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:06:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:06:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:06:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:06:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:06:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:06:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:06:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:06:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:06:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:06:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:06:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:06:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:06:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:06:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:06:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:06:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:06:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:06:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:06:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:06:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:06:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:06:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:06:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:06:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:06:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:06:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:06:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:06:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:06:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:06:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:06:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:06:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:06:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:06:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:06:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:06:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:06:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:06:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:06:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:06:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:06:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:06:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:06:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:06:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:06:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:06:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:06:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:06:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:06:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:06:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:06:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:06:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:06:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:06:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:06:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:06:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:06:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:06:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:06:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:06:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:06:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:06:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:06:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:06:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:06:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:06:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:06:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:06:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:06:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:06:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:06:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:06:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:06:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:06:33,709 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:06:33,709 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:06:33,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:06:33 BoogieIcfgContainer [2020-09-24 19:06:33,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:06:33,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:06:33,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:06:33,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:06:33,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:06:31" (1/3) ... [2020-09-24 19:06:33,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40728a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:06:33, skipping insertion in model container [2020-09-24 19:06:33,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32" (2/3) ... [2020-09-24 19:06:33,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40728a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:06:33, skipping insertion in model container [2020-09-24 19:06:33,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:06:33" (3/3) ... [2020-09-24 19:06:33,726 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-09-24 19:06:33,737 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:06:33,752 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:06:33,775 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:06:33,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:06:33,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:06:33,811 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:06:33,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:06:33,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:06:33,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:06:33,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:06:33,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:06:33,844 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-24 19:06:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 19:06:33,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:33,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:33,864 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:33,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:33,873 INFO L82 PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times [2020-09-24 19:06:33,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:33,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518692667] [2020-09-24 19:06:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:34,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:35,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:35,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:06:35,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:35,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-09-24 19:06:35,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:06:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:35,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:06:35,852 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:35,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:35,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:36,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 19:06:36,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:36,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:36,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:36,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:36,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:36,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:36,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:36,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:36,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:36,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:36,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:06:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:36,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:36,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:06:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:36,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:36,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518692667] [2020-09-24 19:06:36,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:36,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:06:36,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565797887] [2020-09-24 19:06:36,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:06:36,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:36,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:06:36,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:06:36,308 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 4 states. [2020-09-24 19:06:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:37,567 INFO L93 Difference]: Finished difference Result 478 states and 564 transitions. [2020-09-24 19:06:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:06:37,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 19:06:37,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:37,589 INFO L225 Difference]: With dead ends: 478 [2020-09-24 19:06:37,590 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 19:06:37,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:06:37,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 19:06:37,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257. [2020-09-24 19:06:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 19:06:37,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-24 19:06:37,736 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 148 [2020-09-24 19:06:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:37,737 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-24 19:06:37,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:06:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-24 19:06:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 19:06:37,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:37,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:37,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:06:37,743 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:37,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1712592355, now seen corresponding path program 1 times [2020-09-24 19:06:37,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:37,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181821314] [2020-09-24 19:06:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:37,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:37,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:38,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:38,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 19:06:38,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:38,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-24 19:06:38,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:38,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:38,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:06:38,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:06:38,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,127 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:39,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:39,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 19:06:39,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:39,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:39,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:39,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:39,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:39,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:39,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:39,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:39,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:39,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:39,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:39,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:39,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:39,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:06:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:39,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:39,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:06:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:39,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:06:39,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:39,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181821314] [2020-09-24 19:06:39,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:39,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:06:39,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634542540] [2020-09-24 19:06:39,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:06:39,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:39,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:06:39,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:06:39,408 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 5 states. [2020-09-24 19:06:40,356 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:41,535 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2020-09-24 19:06:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:06:41,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 19:06:41,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:41,540 INFO L225 Difference]: With dead ends: 403 [2020-09-24 19:06:41,541 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 19:06:41,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:06:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 19:06:41,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247. [2020-09-24 19:06:41,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 19:06:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions. [2020-09-24 19:06:41,591 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 149 [2020-09-24 19:06:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:41,595 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 265 transitions. [2020-09-24 19:06:41,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:06:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions. [2020-09-24 19:06:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 19:06:41,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:41,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:41,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:06:41,598 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:41,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:41,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1803359450, now seen corresponding path program 1 times [2020-09-24 19:06:41,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:41,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843271664] [2020-09-24 19:06:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:41,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:41,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 19:06:42,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:42,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-24 19:06:42,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:42,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:06:42,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:43,124 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:43,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:43,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 19:06:43,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:43,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:43,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:43,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:43,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:43,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:43,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:43,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:43,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:43,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:06:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:43,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:43,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:43,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:06:43,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:06:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:43,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:06:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:43,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:43,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:43,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843271664] [2020-09-24 19:06:43,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:43,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:06:43,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650178894] [2020-09-24 19:06:43,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:06:43,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:43,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:06:43,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:06:43,349 INFO L87 Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 6 states. [2020-09-24 19:06:43,837 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:06:44,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:44,861 INFO L93 Difference]: Finished difference Result 450 states and 520 transitions. [2020-09-24 19:06:44,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:06:44,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 19:06:44,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:44,867 INFO L225 Difference]: With dead ends: 450 [2020-09-24 19:06:44,872 INFO L226 Difference]: Without dead ends: 318 [2020-09-24 19:06:44,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:06:44,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-24 19:06:44,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247. [2020-09-24 19:06:44,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 19:06:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 264 transitions. [2020-09-24 19:06:44,911 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 264 transitions. Word has length 162 [2020-09-24 19:06:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:44,912 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 264 transitions. [2020-09-24 19:06:44,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:06:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 264 transitions. [2020-09-24 19:06:44,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 19:06:44,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:44,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:44,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:06:44,915 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:44,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:44,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1365821347, now seen corresponding path program 1 times [2020-09-24 19:06:44,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:44,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846307813] [2020-09-24 19:06:44,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 19:06:46,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-09-24 19:06:46,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:06:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-24 19:06:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:46,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,334 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:46,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:46,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:06:46,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:46,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:46,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:46,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:46,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:46,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:46,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:46,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:06:46,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:46,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:06:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:46,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:46,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:06:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:06:46,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:06:46,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:06:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:06:46,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:06:46,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:06:46,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:06:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:46,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:46,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:06:46,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:46,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:06:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:46,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:06:46,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:46,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:06:46,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 19:06:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:46,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:46,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:46,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:46,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:46,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:46,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:46,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:46,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846307813] [2020-09-24 19:06:46,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:46,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:06:46,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979945782] [2020-09-24 19:06:46,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:06:46,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:46,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:06:46,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:06:46,771 INFO L87 Difference]: Start difference. First operand 247 states and 264 transitions. Second operand 9 states. [2020-09-24 19:06:47,390 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:06:48,971 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:06:49,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:49,924 INFO L93 Difference]: Finished difference Result 629 states and 750 transitions. [2020-09-24 19:06:49,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 19:06:49,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 19:06:49,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:49,939 INFO L225 Difference]: With dead ends: 629 [2020-09-24 19:06:49,939 INFO L226 Difference]: Without dead ends: 497 [2020-09-24 19:06:49,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-09-24 19:06:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-24 19:06:50,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 356. [2020-09-24 19:06:50,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-09-24 19:06:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 385 transitions. [2020-09-24 19:06:50,007 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 385 transitions. Word has length 170 [2020-09-24 19:06:50,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:50,007 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 385 transitions. [2020-09-24 19:06:50,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:06:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 385 transitions. [2020-09-24 19:06:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:06:50,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:50,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:50,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:06:50,011 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:50,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:50,011 INFO L82 PathProgramCache]: Analyzing trace with hash -193373180, now seen corresponding path program 1 times [2020-09-24 19:06:50,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:50,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227902443] [2020-09-24 19:06:50,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:50,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 19:06:51,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:51,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-09-24 19:06:51,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 19:06:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:51,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,385 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:51,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:51,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:06:51,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:51,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:51,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:51,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:51,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:51,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:51,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:51,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:51,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:06:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:51,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:06:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:06:51,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:51,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-24 19:06:51,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:06:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:51,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:06:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:06:51,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 19:06:51,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:06:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:51,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:06:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:06:51,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:06:51,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:06:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:51,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:06:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:51,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 19:06:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 19:06:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:51,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:06:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:52,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:52,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:52,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:52,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:52,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:52,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:52,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:52,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:52,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:52,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:52,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227902443] [2020-09-24 19:06:52,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:52,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:06:52,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899631589] [2020-09-24 19:06:52,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:06:52,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:52,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:06:52,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:06:52,056 INFO L87 Difference]: Start difference. First operand 356 states and 385 transitions. Second operand 10 states. [2020-09-24 19:06:53,198 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:53,504 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:53,845 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:54,212 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:54,510 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:55,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:55,661 INFO L93 Difference]: Finished difference Result 743 states and 885 transitions. [2020-09-24 19:06:55,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:06:55,662 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 19:06:55,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:55,667 INFO L225 Difference]: With dead ends: 743 [2020-09-24 19:06:55,667 INFO L226 Difference]: Without dead ends: 502 [2020-09-24 19:06:55,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:06:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-24 19:06:55,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 362. [2020-09-24 19:06:55,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 19:06:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 391 transitions. [2020-09-24 19:06:55,722 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 391 transitions. Word has length 194 [2020-09-24 19:06:55,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:55,722 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 391 transitions. [2020-09-24 19:06:55,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:06:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 391 transitions. [2020-09-24 19:06:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:06:55,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:55,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:55,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:06:55,726 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:55,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:55,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1228867684, now seen corresponding path program 1 times [2020-09-24 19:06:55,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:55,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123570759] [2020-09-24 19:06:55,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:55,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:56,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:56,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:56,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 19:06:56,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:56,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1078 [2020-09-24 19:06:56,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:06:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 19:06:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-24 19:06:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,179 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:57,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-24 19:06:57,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 19:06:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:57,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:57,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:06:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:57,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:57,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:06:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:57,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:06:57,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:57,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:57,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:06:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:57,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:57,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:06:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:06:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:57,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:06:57,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:06:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:57,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:06:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:06:57,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:06:57,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 19:06:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:57,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:06:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:06:57,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:06:57,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:57,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:06:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:06:57,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:57,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:57,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:06:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:57,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:06:57,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:57,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 19:06:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:06:57,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:57,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:06:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:57,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:57,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:57,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123570759] [2020-09-24 19:06:57,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:57,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:06:57,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13661984] [2020-09-24 19:06:57,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:06:57,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:57,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:06:57,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:06:57,915 INFO L87 Difference]: Start difference. First operand 362 states and 391 transitions. Second operand 11 states. [2020-09-24 19:06:58,646 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:00,548 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 19:07:01,203 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-24 19:07:01,590 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:01,923 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:07:02,606 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:02,917 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:03,229 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:03,667 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:05,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:05,284 INFO L93 Difference]: Finished difference Result 1059 states and 1292 transitions. [2020-09-24 19:07:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 19:07:05,285 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 19:07:05,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:05,293 INFO L225 Difference]: With dead ends: 1059 [2020-09-24 19:07:05,293 INFO L226 Difference]: Without dead ends: 812 [2020-09-24 19:07:05,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 19:07:05,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-24 19:07:05,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 563. [2020-09-24 19:07:05,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-09-24 19:07:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 613 transitions. [2020-09-24 19:07:05,407 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 613 transitions. Word has length 194 [2020-09-24 19:07:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:05,407 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 613 transitions. [2020-09-24 19:07:05,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 613 transitions. [2020-09-24 19:07:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:07:05,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:05,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:05,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:07:05,411 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:05,411 INFO L82 PathProgramCache]: Analyzing trace with hash -624986246, now seen corresponding path program 1 times [2020-09-24 19:07:05,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:05,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344330888] [2020-09-24 19:07:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:06,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:06,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:07:06,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:06,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1036 [2020-09-24 19:07:06,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 19:07:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 19:07:06,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:06,829 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:06,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:06,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:06,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:06,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:06,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:06,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 19:07:06,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:06,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:06,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:06,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:07,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:07,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:07,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:07,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:07,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:07,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:07,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:07,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:07,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:07,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:07,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:07,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:07:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:07,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:07,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:07:07,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:07:07,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:07,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:07,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:07:07,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:07:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:07,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:07,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:07,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:07,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 19:07:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:07,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:07,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:07,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 19:07:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:07,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:07:07,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:07,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:07,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344330888] [2020-09-24 19:07:07,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:07,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 19:07:07,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139889505] [2020-09-24 19:07:07,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:07:07,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:07,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:07:07,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:07:07,346 INFO L87 Difference]: Start difference. First operand 563 states and 613 transitions. Second operand 12 states. [2020-09-24 19:07:07,986 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:09,875 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:10,189 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:10,646 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:12,204 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:12,460 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:12,857 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:13,209 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 19:07:13,541 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:07:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:14,320 INFO L93 Difference]: Finished difference Result 1390 states and 1677 transitions. [2020-09-24 19:07:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 19:07:14,321 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 199 [2020-09-24 19:07:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:14,327 INFO L225 Difference]: With dead ends: 1390 [2020-09-24 19:07:14,328 INFO L226 Difference]: Without dead ends: 942 [2020-09-24 19:07:14,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 19:07:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-09-24 19:07:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 561. [2020-09-24 19:07:14,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-09-24 19:07:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 609 transitions. [2020-09-24 19:07:14,434 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 609 transitions. Word has length 199 [2020-09-24 19:07:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:14,435 INFO L479 AbstractCegarLoop]: Abstraction has 561 states and 609 transitions. [2020-09-24 19:07:14,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:07:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 609 transitions. [2020-09-24 19:07:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 19:07:14,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:14,439 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] [2020-09-24 19:07:14,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:07:14,440 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:14,440 INFO L82 PathProgramCache]: Analyzing trace with hash 173916020, now seen corresponding path program 1 times [2020-09-24 19:07:14,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:14,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878364644] [2020-09-24 19:07:14,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 19:07:15,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-24 19:07:15,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 19:07:15,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:15,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,821 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:15,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:15,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 19:07:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:15,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:15,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:15,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:15,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:16,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:16,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:07:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:16,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:16,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:07:16,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 19:07:16,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:07:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:16,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:16,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:07:16,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:07:16,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:16,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:16,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:07:16,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:07:16,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:07:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:07:16,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:16,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:16,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:07:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:16,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:07:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:16,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 19:07:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:16,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:07:16,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878364644] [2020-09-24 19:07:16,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:16,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 19:07:16,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182724947] [2020-09-24 19:07:16,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:07:16,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:16,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:07:16,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:07:16,385 INFO L87 Difference]: Start difference. First operand 561 states and 609 transitions. Second operand 12 states. [2020-09-24 19:07:17,802 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:18,132 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:18,472 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 19:07:18,800 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:19,125 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:19,424 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:21,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:21,246 INFO L93 Difference]: Finished difference Result 1402 states and 1728 transitions. [2020-09-24 19:07:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 19:07:21,251 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 222 [2020-09-24 19:07:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:21,257 INFO L225 Difference]: With dead ends: 1402 [2020-09-24 19:07:21,257 INFO L226 Difference]: Without dead ends: 956 [2020-09-24 19:07:21,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2020-09-24 19:07:21,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-09-24 19:07:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 577. [2020-09-24 19:07:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-09-24 19:07:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 625 transitions. [2020-09-24 19:07:21,347 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 625 transitions. Word has length 222 [2020-09-24 19:07:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:21,348 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 625 transitions. [2020-09-24 19:07:21,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:07:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 625 transitions. [2020-09-24 19:07:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 19:07:21,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:21,352 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] [2020-09-24 19:07:21,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:07:21,352 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:21,353 INFO L82 PathProgramCache]: Analyzing trace with hash 993243665, now seen corresponding path program 1 times [2020-09-24 19:07:21,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:21,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507976058] [2020-09-24 19:07:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:21,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking...