/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:13:30,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:13:30,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:13:30,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:13:30,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:13:30,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:13:30,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:13:30,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:13:30,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:13:30,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:13:30,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:13:30,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:13:30,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:13:30,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:13:30,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:13:30,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:13:30,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:13:30,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:13:30,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:13:30,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:13:30,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:13:30,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:13:30,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:13:30,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:13:30,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:13:30,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:13:30,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:13:30,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:13:30,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:13:30,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:13:30,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:13:30,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:13:30,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:13:30,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:13:30,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:13:30,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:13:30,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:13:30,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:13:30,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:13:30,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:13:30,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:13:30,499 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 04:13:30,561 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:13:30,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:13:30,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:13:30,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:13:30,564 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:13:30,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:13:30,565 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:13:30,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:13:30,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:13:30,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:13:30,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:13:30,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:13:30,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:13:30,568 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:13:30,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:13:30,569 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:13:30,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:13:30,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:13:30,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:13:30,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:13:30,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:13:30,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:13:30,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:13:30,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:13:30,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:13:30,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:13:30,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:13:30,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:13:30,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:13:30,572 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=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:13:31,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:13:31,057 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:13:31,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:13:31,064 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:13:31,064 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:13:31,065 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-09-25 04:13:31,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/738226b83/a98acc91dec94656aa5ac8365d2ce2c2/FLAG92735fd6e [2020-09-25 04:13:31,819 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:13:31,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-09-25 04:13:31,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/738226b83/a98acc91dec94656aa5ac8365d2ce2c2/FLAG92735fd6e [2020-09-25 04:13:32,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/738226b83/a98acc91dec94656aa5ac8365d2ce2c2 [2020-09-25 04:13:32,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:13:32,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:13:32,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:13:32,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:13:32,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:13:32,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:32,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c10802c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32, skipping insertion in model container [2020-09-25 04:13:32,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:32,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:13:32,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:13:32,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:13:32,763 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:13:32,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:13:32,903 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:13:32,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32 WrapperNode [2020-09-25 04:13:32,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:13:32,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:13:32,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:13:32,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:13:32,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:32,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:32,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:32,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:32,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:32,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:33,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... [2020-09-25 04:13:33,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:13:33,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:13:33,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:13:33,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:13:33,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:13:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:13:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:13:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:13:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:13:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:13:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:13:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:13:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:13:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:13:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:13:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:13:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:13:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:13:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:13:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:13:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:13:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:13:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:13:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:13:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:13:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:13:33,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:13:33,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:13:33,105 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:13:33,106 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:13:33,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:13:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:13:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:13:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:13:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:13:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:13:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:13:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:13:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:13:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:13:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:13:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:13:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:13:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:13:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:13:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:13:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:13:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:13:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:13:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:13:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:13:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:13:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:13:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:13:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:13:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:13:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:13:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:13:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:13:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:13:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:13:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:13:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:13:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:13:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:13:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:13:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:13:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:13:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:13:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:13:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:13:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:13:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:13:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:13:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:13:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:13:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:13:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:13:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:13:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:13:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:13:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:13:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:13:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:13:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:13:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:13:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:13:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:13:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:13:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:13:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:13:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:13:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:13:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:13:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:13:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:13:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:13:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:13:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:13:34,324 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:13:34,324 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:13:34,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:13:34 BoogieIcfgContainer [2020-09-25 04:13:34,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:13:34,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:13:34,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:13:34,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:13:34,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:13:32" (1/3) ... [2020-09-25 04:13:34,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfd66fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:13:34, skipping insertion in model container [2020-09-25 04:13:34,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:32" (2/3) ... [2020-09-25 04:13:34,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfd66fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:13:34, skipping insertion in model container [2020-09-25 04:13:34,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:13:34" (3/3) ... [2020-09-25 04:13:34,344 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2020-09-25 04:13:34,360 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:13:34,373 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:13:34,398 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:13:34,433 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:13:34,433 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:13:34,433 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:13:34,433 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:13:34,433 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:13:34,434 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:13:34,434 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:13:34,434 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:13:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 04:13:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:13:34,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:13:34,486 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:13:34,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:13:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:13:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash -749536702, now seen corresponding path program 1 times [2020-09-25 04:13:34,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:13:34,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928023370] [2020-09-25 04:13:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:13:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:35,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:35,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:36,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:37,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 04:13:40,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:13:40,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 04:13:40,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:13:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:13:40,426 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:40,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:13:40,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 04:13:40,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:40,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:13:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:40,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:40,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:40,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:13:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:40,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:40,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:40,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:13:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:40,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:13:40,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:13:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:40,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:40,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:40,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:13:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:13:40,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:13:40,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:40,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:13:40,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:13:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:13:40,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:13:40,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:13:40,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:40,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:40,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:40,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:40,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 04:13:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:40,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:40,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:40,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:13:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:40,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:40,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:40,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:40,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:40,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:40,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:40,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:40,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:40,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:40,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:40,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 04:13:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:13:40,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928023370] [2020-09-25 04:13:40,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:13:40,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:13:40,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002521749] [2020-09-25 04:13:40,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:13:40,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:13:40,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:13:40,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:13:40,965 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 4 states. [2020-09-25 04:13:42,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:13:42,468 INFO L93 Difference]: Finished difference Result 495 states and 579 transitions. [2020-09-25 04:13:42,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:13:42,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 04:13:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:13:42,491 INFO L225 Difference]: With dead ends: 495 [2020-09-25 04:13:42,491 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 04:13:42,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:13:42,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 04:13:42,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-25 04:13:42,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 04:13:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 291 transitions. [2020-09-25 04:13:42,633 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 291 transitions. Word has length 160 [2020-09-25 04:13:42,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:13:42,636 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 291 transitions. [2020-09-25 04:13:42,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:13:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 291 transitions. [2020-09-25 04:13:42,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:13:42,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:13:42,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:13:42,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:13:42,653 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:13:42,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:13:42,653 INFO L82 PathProgramCache]: Analyzing trace with hash 839621270, now seen corresponding path program 1 times [2020-09-25 04:13:42,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:13:42,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278023920] [2020-09-25 04:13:42,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:13:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:42,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:42,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:43,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:45,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:47,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:47,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 04:13:47,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:13:47,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 04:13:47,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:47,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:47,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:47,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 04:13:47,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 04:13:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,244 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:48,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:13:48,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 04:13:48,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:13:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:13:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:13:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:13:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:48,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:13:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:13:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:48,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:13:48,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:13:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:13:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:48,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:48,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:48,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:13:48,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:13:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:13:48,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:48,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:48,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:13:48,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:13:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:13:48,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:13:48,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:48,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:13:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:48,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:48,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:48,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:48,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 04:13:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:48,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:48,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:13:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:48,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:48,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:48,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:48,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:48,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:48,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:13:48,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278023920] [2020-09-25 04:13:48,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:13:48,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:13:48,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569498047] [2020-09-25 04:13:48,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:13:48,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:13:48,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:13:48,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:13:48,744 INFO L87 Difference]: Start difference. First operand 268 states and 291 transitions. Second operand 5 states. [2020-09-25 04:13:49,256 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:13:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:13:50,163 INFO L93 Difference]: Finished difference Result 465 states and 531 transitions. [2020-09-25 04:13:50,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:13:50,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 04:13:50,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:13:50,168 INFO L225 Difference]: With dead ends: 465 [2020-09-25 04:13:50,169 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 04:13:50,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:13:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 04:13:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-25 04:13:50,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 04:13:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-25 04:13:50,220 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 161 [2020-09-25 04:13:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:13:50,220 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-25 04:13:50,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:13:50,221 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-25 04:13:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 04:13:50,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:13:50,224 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:13:50,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:13:50,224 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:13:50,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:13:50,225 INFO L82 PathProgramCache]: Analyzing trace with hash -443494427, now seen corresponding path program 1 times [2020-09-25 04:13:50,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:13:50,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963204658] [2020-09-25 04:13:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:13:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:50,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:50,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:52,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:52,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:52,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:54,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-25 04:13:55,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 04:13:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5117 [2020-09-25 04:13:55,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:13:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 04:13:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:13:55,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:13:55,719 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:55,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:13:55,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:13:55,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:55,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:13:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:55,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:55,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:13:55,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:13:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:55,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:13:55,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:13:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:55,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:55,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:13:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:55,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:55,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:13:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:13:55,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:55,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:55,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:13:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:13:55,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:55,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:13:55,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:55,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:55,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:13:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:13:55,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:13:55,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:13:55,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:13:55,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:13:55,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:13:55,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:13:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:55,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:55,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:13:55,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:55,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:13:55,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:55,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:13:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:13:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:13:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:56,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:13:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:56,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:56,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:56,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:56,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:56,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:56,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:13:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:56,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:13:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:56,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:56,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:56,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:56,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:56,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:56,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-25 04:13:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:56,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:56,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:56,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:56,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:56,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:56,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:13:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:13:56,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963204658] [2020-09-25 04:13:56,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:13:56,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:13:56,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003641374] [2020-09-25 04:13:56,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:13:56,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:13:56,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:13:56,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:13:56,103 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 8 states. [2020-09-25 04:13:56,618 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:58,517 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:13:59,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:13:59,272 INFO L93 Difference]: Finished difference Result 646 states and 771 transitions. [2020-09-25 04:13:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:13:59,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-09-25 04:13:59,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:13:59,280 INFO L225 Difference]: With dead ends: 646 [2020-09-25 04:13:59,281 INFO L226 Difference]: Without dead ends: 493 [2020-09-25 04:13:59,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:13:59,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-09-25 04:13:59,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 407. [2020-09-25 04:13:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-09-25 04:13:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 455 transitions. [2020-09-25 04:13:59,355 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 455 transitions. Word has length 183 [2020-09-25 04:13:59,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:13:59,356 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 455 transitions. [2020-09-25 04:13:59,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:13:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 455 transitions. [2020-09-25 04:13:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 04:13:59,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:13:59,360 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:13:59,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:13:59,360 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:13:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:13:59,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1600222007, now seen corresponding path program 1 times [2020-09-25 04:13:59,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:13:59,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616659868] [2020-09-25 04:13:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:13:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:59,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:59,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:59,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 04:14:04,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:14:04,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 04:14:04,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 04:14:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:14:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:04,771 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:14:04,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:14:04,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 04:14:04,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:04,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:14:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:04,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:04,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:04,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:14:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:04,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:04,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:04,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:14:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:04,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:04,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:04,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:14:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:04,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:04,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:14:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:04,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:04,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:04,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:14:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:14:04,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:04,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:04,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:04,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:04,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:04,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:04,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:04,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:04,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:14:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:04,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 04:14:05,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:14:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 04:14:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:05,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:05,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:14:05,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:05,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 04:14:05,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:05,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:05,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:14:05,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:05,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:05,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:14:05,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:14:05,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:14:05,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:05,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:14:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:14:05,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:05,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:05,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:05,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:05,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:14:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:05,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:05,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:05,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:05,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:14:05,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:05,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 04:14:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:05,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:05,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:05,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:05,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:14:05,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:05,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 04:14:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:05,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:05,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:05,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:14:05,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:05,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:05,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:14:05,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:14:05,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616659868] [2020-09-25 04:14:05,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:14:05,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:14:05,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831876136] [2020-09-25 04:14:05,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:14:05,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:14:05,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:14:05,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:14:05,271 INFO L87 Difference]: Start difference. First operand 407 states and 455 transitions. Second operand 10 states. [2020-09-25 04:14:05,845 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:14:06,581 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:14:06,934 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 04:14:08,083 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:08,391 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:14:08,788 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:09,363 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:09,684 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:14:09,992 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:14:10,865 INFO L93 Difference]: Finished difference Result 774 states and 914 transitions. [2020-09-25 04:14:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:14:10,872 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-25 04:14:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:14:10,880 INFO L225 Difference]: With dead ends: 774 [2020-09-25 04:14:10,880 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 04:14:10,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:14:10,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 04:14:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 406. [2020-09-25 04:14:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-25 04:14:10,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 452 transitions. [2020-09-25 04:14:10,951 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 452 transitions. Word has length 207 [2020-09-25 04:14:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:14:10,951 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 452 transitions. [2020-09-25 04:14:10,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:14:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 452 transitions. [2020-09-25 04:14:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 04:14:10,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:10,955 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:14:10,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:14:10,955 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:10,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:10,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1505316662, now seen corresponding path program 1 times [2020-09-25 04:14:10,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:10,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313610612] [2020-09-25 04:14:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:11,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:11,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:11,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 04:14:11,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:11,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-09-25 04:14:11,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:11,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 04:14:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:14:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,100 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:14:12,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:14:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 04:14:12,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:14:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:14:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:12,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:12,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:14:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:12,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:12,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:14:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:12,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:12,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:14:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:12,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:12,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:14:12,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:14:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:14:12,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:14:12,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:12,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:12,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:14:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:14:12,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 04:14:12,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:12,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 04:14:12,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:14:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:14:12,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 04:14:12,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:14:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:14:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:14:12,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 04:14:12,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:14:12,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:14:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:14:12,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:14:12,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:14:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:14:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:12,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:12,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:14:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:14:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 04:14:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:12,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:12,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:14:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:12,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:12,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:12,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:12,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:14:12,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313610612] [2020-09-25 04:14:12,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:14:12,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:14:12,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890697957] [2020-09-25 04:14:12,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:14:12,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:14:12,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:14:12,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:14:12,804 INFO L87 Difference]: Start difference. First operand 406 states and 452 transitions. Second operand 10 states. [2020-09-25 04:14:14,231 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:14,544 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:14:14,882 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:14:15,209 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:15,555 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:14:15,868 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:16,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:14:16,934 INFO L93 Difference]: Finished difference Result 775 states and 908 transitions. [2020-09-25 04:14:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:14:16,934 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-25 04:14:16,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:14:16,938 INFO L225 Difference]: With dead ends: 775 [2020-09-25 04:14:16,938 INFO L226 Difference]: Without dead ends: 484 [2020-09-25 04:14:16,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:14:16,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-09-25 04:14:16,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 414. [2020-09-25 04:14:16,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-09-25 04:14:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 460 transitions. [2020-09-25 04:14:16,984 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 460 transitions. Word has length 208 [2020-09-25 04:14:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:14:16,985 INFO L479 AbstractCegarLoop]: Abstraction has 414 states and 460 transitions. [2020-09-25 04:14:16,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:14:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 460 transitions. [2020-09-25 04:14:16,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 04:14:16,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:16,989 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:14:16,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:14:16,989 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:16,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:16,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1630521046, now seen corresponding path program 1 times [2020-09-25 04:14:16,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:16,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236932340] [2020-09-25 04:14:16,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:17,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:17,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:17,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 04:14:17,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-09-25 04:14:17,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:17,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 04:14:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:17,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:18,081 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:14:18,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:14:18,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 04:14:18,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:14:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:18,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:18,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:14:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:18,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:18,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:14:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:18,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:18,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:18,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:14:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:18,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:18,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:18,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:14:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:18,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:18,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:14:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:14:18,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:18,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:18,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:18,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:14:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:14:18,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 04:14:18,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:14:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:14:18,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 04:14:18,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:18,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:14:18,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:18,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:14:18,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:14:18,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:14:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:18,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:14:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:14:18,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:14:18,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:14:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:18,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:14:18,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:14:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:18,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:18,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:14:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 04:14:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:18,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:18,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:18,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:14:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:18,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:18,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:18,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:18,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:14:18,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236932340] [2020-09-25 04:14:18,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:14:18,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:14:18,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753456835] [2020-09-25 04:14:18,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:14:18,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:14:18,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:14:18,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:14:18,650 INFO L87 Difference]: Start difference. First operand 414 states and 460 transitions. Second operand 9 states.