/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:36:55,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:36:55,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:36:55,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:36:55,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:36:55,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:36:55,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:36:55,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:36:55,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:36:55,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:36:55,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:36:55,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:36:55,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:36:55,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:36:55,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:36:55,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:36:55,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:36:55,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:36:55,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:36:55,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:36:55,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:36:55,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:36:55,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:36:55,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:36:55,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:36:55,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:36:55,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:36:55,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:36:55,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:36:55,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:36:55,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:36:55,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:36:55,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:36:55,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:36:55,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:36:55,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:36:55,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:36:55,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:36:55,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:36:55,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:36:55,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:36:55,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:36:55,963 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:36:55,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:36:55,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:36:55,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:36:55,965 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:36:55,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:36:55,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:36:55,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:36:55,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:36:55,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:36:55,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:36:55,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:36:55,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:36:55,967 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:36:55,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:36:55,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:36:55,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:36:55,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:36:55,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:36:55,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:36:55,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:36:55,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:55,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:36:55,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:36:55,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:36:55,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:36:55,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:36:55,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:36:55,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:36:55,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:36:56,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:36:56,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:36:56,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:36:56,435 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:36:56,435 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:36:56,436 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-25 07:36:56,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2316a4d9e/9b925358e7844cafb5549cae4c3b2362/FLAG44e099f68 [2020-09-25 07:36:57,108 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:36:57,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-25 07:36:57,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2316a4d9e/9b925358e7844cafb5549cae4c3b2362/FLAG44e099f68 [2020-09-25 07:36:57,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2316a4d9e/9b925358e7844cafb5549cae4c3b2362 [2020-09-25 07:36:57,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:36:57,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:36:57,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:57,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:36:57,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:36:57,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:57" (1/1) ... [2020-09-25 07:36:57,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:57, skipping insertion in model container [2020-09-25 07:36:57,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:57" (1/1) ... [2020-09-25 07:36:57,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:36:57,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:36:57,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:57,915 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:36:58,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:58,095 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:36:58,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58 WrapperNode [2020-09-25 07:36:58,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:58,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:36:58,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:36:58,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:36:58,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... [2020-09-25 07:36:58,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... [2020-09-25 07:36:58,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... [2020-09-25 07:36:58,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... [2020-09-25 07:36:58,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... [2020-09-25 07:36:58,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... [2020-09-25 07:36:58,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... [2020-09-25 07:36:58,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:36:58,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:36:58,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:36:58,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:36:58,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:36:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:36:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:36:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:36:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:36:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:36:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:36:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:36:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:36:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:36:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:36:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:36:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:36:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:36:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:36:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:36:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:36:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:36:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:36:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:36:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:36:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:36:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:36:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:36:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:36:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:36:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:36:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:36:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:36:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:36:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:36:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:36:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:36:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:36:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:36:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:36:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:36:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:36:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:36:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:36:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:36:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:36:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:36:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:36:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:36:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:36:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:36:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:36:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:36:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:36:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:36:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:36:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:36:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:36:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:36:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:36:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:36:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:36:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:36:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:36:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:36:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:36:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:36:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:36:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:36:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:36:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:36:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:36:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:36:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:36:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:36:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:36:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:36:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:36:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:36:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:36:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:36:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:36:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:36:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:36:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:36:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:36:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:36:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:36:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:36:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:36:59,456 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:36:59,457 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:36:59,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:59 BoogieIcfgContainer [2020-09-25 07:36:59,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:36:59,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:36:59,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:36:59,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:36:59,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:36:57" (1/3) ... [2020-09-25 07:36:59,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9dd17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:59, skipping insertion in model container [2020-09-25 07:36:59,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:58" (2/3) ... [2020-09-25 07:36:59,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9dd17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:59, skipping insertion in model container [2020-09-25 07:36:59,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:59" (3/3) ... [2020-09-25 07:36:59,482 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-25 07:36:59,495 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:36:59,509 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:36:59,534 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:36:59,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:36:59,575 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:36:59,575 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:36:59,575 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:36:59,576 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:36:59,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:36:59,577 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:36:59,577 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:36:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 07:36:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:36:59,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:59,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:59,650 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:59,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:59,660 INFO L82 PathProgramCache]: Analyzing trace with hash 627708892, now seen corresponding path program 1 times [2020-09-25 07:36:59,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:59,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103033747] [2020-09-25 07:36:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:00,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:00,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:01,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:02,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:37:05,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:05,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 07:37:05,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:37:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 07:37:05,469 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:05,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:05,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:05,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:05,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 07:37:05,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:05,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:05,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:05,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:05,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:05,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:05,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:05,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:05,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:05,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:05,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:05,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:05,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:05,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:05,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:05,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:05,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:05,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:05,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:05,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:05,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:05,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:37:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:05,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:05,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:05,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:05,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:05,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:05,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:37:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:05,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:05,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:05,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:05,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:05,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:05,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:05,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103033747] [2020-09-25 07:37:05,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:05,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:37:05,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615088541] [2020-09-25 07:37:05,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:37:05,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:05,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:37:05,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:37:05,803 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-25 07:37:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:07,183 INFO L93 Difference]: Finished difference Result 498 states and 590 transitions. [2020-09-25 07:37:07,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:37:07,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:37:07,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:07,205 INFO L225 Difference]: With dead ends: 498 [2020-09-25 07:37:07,206 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 07:37:07,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:37:07,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 07:37:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-09-25 07:37:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 07:37:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 287 transitions. [2020-09-25 07:37:07,343 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 287 transitions. Word has length 142 [2020-09-25 07:37:07,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:07,345 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 287 transitions. [2020-09-25 07:37:07,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:37:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 287 transitions. [2020-09-25 07:37:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:37:07,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:07,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:07,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:37:07,358 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:07,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:07,359 INFO L82 PathProgramCache]: Analyzing trace with hash -157653560, now seen corresponding path program 1 times [2020-09-25 07:37:07,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:07,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619128524] [2020-09-25 07:37:07,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:07,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:07,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:08,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:09,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:10,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:37:12,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:37:12,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 07:37:12,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:37:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,862 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:12,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:13,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:13,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:13,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:13,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 07:37:13,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:13,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:13,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:13,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:13,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:13,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:13,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:13,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:13,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:13,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:13,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:13,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:13,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:13,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:13,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:13,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:13,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:13,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:13,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:13,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:13,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:13,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:13,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:13,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:13,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:13,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:13,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:13,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:13,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:13,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:13,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:13,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:13,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:13,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:13,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:13,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:13,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:37:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:13,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:13,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:13,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:13,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:13,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:13,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:13,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:13,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:13,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:13,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:13,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:13,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:13,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:13,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619128524] [2020-09-25 07:37:13,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:13,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:37:13,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555014187] [2020-09-25 07:37:13,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:37:13,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:13,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:37:13,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:37:13,114 INFO L87 Difference]: Start difference. First operand 265 states and 287 transitions. Second operand 4 states. [2020-09-25 07:37:13,767 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:14,794 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2020-09-25 07:37:14,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:37:14,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:37:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:14,800 INFO L225 Difference]: With dead ends: 411 [2020-09-25 07:37:14,800 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 07:37:14,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:14,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 07:37:14,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-09-25 07:37:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 07:37:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-09-25 07:37:14,846 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 143 [2020-09-25 07:37:14,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:14,847 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-09-25 07:37:14,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:37:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-09-25 07:37:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 07:37:14,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:14,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:14,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:37:14,850 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:14,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:14,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1412760522, now seen corresponding path program 1 times [2020-09-25 07:37:14,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:14,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543116308] [2020-09-25 07:37:14,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:14,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:15,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:16,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:16,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:37:19,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:19,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:37:19,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:19,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:37:19,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:37:19,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:20,203 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:20,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:20,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 07:37:20,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:20,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:20,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:20,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:20,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:20,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:20,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:20,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:20,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:20,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:20,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:20,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:20,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:20,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:20,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:20,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:20,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:20,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:37:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:37:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:20,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:37:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:20,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:37:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:20,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:20,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:37:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:20,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:20,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:20,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:20,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543116308] [2020-09-25 07:37:20,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:20,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:37:20,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301190199] [2020-09-25 07:37:20,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:37:20,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:20,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:37:20,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:20,467 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 5 states. [2020-09-25 07:37:21,082 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:22,183 INFO L93 Difference]: Finished difference Result 457 states and 523 transitions. [2020-09-25 07:37:22,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:37:22,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 07:37:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:22,189 INFO L225 Difference]: With dead ends: 457 [2020-09-25 07:37:22,189 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 07:37:22,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 07:37:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-09-25 07:37:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 07:37:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 273 transitions. [2020-09-25 07:37:22,235 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 273 transitions. Word has length 156 [2020-09-25 07:37:22,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:22,236 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 273 transitions. [2020-09-25 07:37:22,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:37:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 273 transitions. [2020-09-25 07:37:22,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 07:37:22,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:22,239 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] [2020-09-25 07:37:22,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:37:22,239 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:22,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:22,240 INFO L82 PathProgramCache]: Analyzing trace with hash -872720246, now seen corresponding path program 1 times [2020-09-25 07:37:22,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:22,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146010958] [2020-09-25 07:37:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:22,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:22,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:22,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:26,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:26,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:26,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 07:37:27,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:37:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-09-25 07:37:27,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:37:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:37:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:37:27,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:27,663 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:27,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:27,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 07:37:27,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:27,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:27,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:27,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:27,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:27,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:27,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:27,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:27,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:27,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:27,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:27,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:27,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:37:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:37:27,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:27,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:27,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:37:27,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:37:27,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:37:27,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:37:27,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:37:27,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:37:27,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:27,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:37:27,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:37:27,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:37:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:37:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:37:27,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:27,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:27,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:27,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:27,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:27,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:37:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:27,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:27,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:27,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:37:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:27,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:27,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:27,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:27,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:27,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:27,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:27,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:28,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146010958] [2020-09-25 07:37:28,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:28,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:37:28,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629439678] [2020-09-25 07:37:28,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:37:28,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:28,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:37:28,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:28,008 INFO L87 Difference]: Start difference. First operand 255 states and 273 transitions. Second operand 7 states. [2020-09-25 07:37:28,499 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:30,125 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:31,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:31,075 INFO L93 Difference]: Finished difference Result 637 states and 753 transitions. [2020-09-25 07:37:31,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:37:31,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 07:37:31,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:31,081 INFO L225 Difference]: With dead ends: 637 [2020-09-25 07:37:31,081 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 07:37:31,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:37:31,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 07:37:31,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-25 07:37:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 07:37:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 392 transitions. [2020-09-25 07:37:31,146 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 392 transitions. Word has length 169 [2020-09-25 07:37:31,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:31,146 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 392 transitions. [2020-09-25 07:37:31,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:37:31,147 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 392 transitions. [2020-09-25 07:37:31,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:37:31,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:31,149 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] [2020-09-25 07:37:31,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:37:31,150 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:31,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:31,150 INFO L82 PathProgramCache]: Analyzing trace with hash 2060834521, now seen corresponding path program 1 times [2020-09-25 07:37:31,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:31,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437419838] [2020-09-25 07:37:31,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:31,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:32,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:32,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:33,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 07:37:36,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:37:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 07:37:36,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:37:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:37:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:37:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,535 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:36,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:36,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:36,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:36,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:36,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:37:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:37:36,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:36,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:37:36,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:37:36,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 07:37:36,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:37:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:37:36,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:37:36,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:36,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:37:36,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:37:36,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:37:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:37:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:37:36,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:36,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:37:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 07:37:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:36,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:36,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:36,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 07:37:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:37:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:36,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437419838] [2020-09-25 07:37:36,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:36,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:37:36,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201976585] [2020-09-25 07:37:36,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:37:36,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:36,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:37:36,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:37:36,948 INFO L87 Difference]: Start difference. First operand 365 states and 392 transitions. Second operand 10 states. [2020-09-25 07:37:37,486 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:39,234 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 07:37:39,847 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 07:37:40,131 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:40,455 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:37:40,750 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:37:41,074 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:41,379 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:37:41,709 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:42,934 INFO L93 Difference]: Finished difference Result 495 states and 579 transitions. [2020-09-25 07:37:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 07:37:42,935 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-25 07:37:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:42,939 INFO L225 Difference]: With dead ends: 495 [2020-09-25 07:37:42,939 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 07:37:42,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-09-25 07:37:42,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 07:37:42,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-25 07:37:42,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 07:37:42,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 391 transitions. [2020-09-25 07:37:42,987 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 391 transitions. Word has length 193 [2020-09-25 07:37:42,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:42,988 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 391 transitions. [2020-09-25 07:37:42,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:37:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 391 transitions. [2020-09-25 07:37:42,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 07:37:42,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:42,991 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] [2020-09-25 07:37:42,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:37:42,991 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:42,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1456700210, now seen corresponding path program 1 times [2020-09-25 07:37:42,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:42,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609611692] [2020-09-25 07:37:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:43,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:43,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking...