/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:18:06,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:18:06,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:18:06,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:18:06,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:18:06,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:18:06,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:18:06,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:18:06,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:18:06,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:18:06,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:18:06,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:18:06,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:18:06,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:18:06,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:18:06,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:18:06,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:18:06,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:18:06,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:18:06,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:18:06,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:18:06,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:18:06,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:18:06,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:18:06,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:18:06,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:18:06,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:18:06,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:18:06,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:18:06,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:18:06,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:18:06,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:18:06,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:18:06,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:18:06,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:18:06,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:18:06,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:18:06,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:18:06,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:18:06,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:18:06,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:18:06,949 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 06:18:07,000 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:18:07,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:18:07,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:18:07,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:18:07,003 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:18:07,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:18:07,004 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:18:07,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:18:07,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:18:07,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:18:07,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:18:07,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:18:07,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:18:07,007 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:18:07,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:18:07,007 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:18:07,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:18:07,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:18:07,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:18:07,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:18:07,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:18:07,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:18:07,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:18:07,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:18:07,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:18:07,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:18:07,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:18:07,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:18:07,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:18:07,010 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:18:07,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:18:07,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:18:07,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:18:07,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:18:07,469 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:18:07,470 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-25 06:18:07,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be6c72130/8ec4990084384abd9427f51dad005263/FLAGe98123351 [2020-09-25 06:18:08,149 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:18:08,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-25 06:18:08,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be6c72130/8ec4990084384abd9427f51dad005263/FLAGe98123351 [2020-09-25 06:18:08,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be6c72130/8ec4990084384abd9427f51dad005263 [2020-09-25 06:18:08,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:18:08,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:18:08,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:08,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:18:08,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:18:08,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:08" (1/1) ... [2020-09-25 06:18:08,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5878563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:08, skipping insertion in model container [2020-09-25 06:18:08,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:08" (1/1) ... [2020-09-25 06:18:08,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:18:08,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:18:09,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:09,076 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:18:09,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:09,245 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:18:09,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09 WrapperNode [2020-09-25 06:18:09,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:09,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:18:09,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:18:09,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:18:09,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (1/1) ... [2020-09-25 06:18:09,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (1/1) ... [2020-09-25 06:18:09,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (1/1) ... [2020-09-25 06:18:09,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (1/1) ... [2020-09-25 06:18:09,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (1/1) ... [2020-09-25 06:18:09,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (1/1) ... [2020-09-25 06:18:09,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (1/1) ... [2020-09-25 06:18:09,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:18:09,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:18:09,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:18:09,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:18:09,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (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 06:18:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:18:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:18:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:18:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:18:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:18:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:18:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:18:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:18:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:18:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:18:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:18:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:18:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:18:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:18:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:18:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:18:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:18:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:18:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:18:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:18:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:18:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:18:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:18:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:18:10,870 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:18:10,870 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:18:10,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:10 BoogieIcfgContainer [2020-09-25 06:18:10,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:18:10,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:18:10,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:18:10,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:18:10,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:18:08" (1/3) ... [2020-09-25 06:18:10,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f804ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:10, skipping insertion in model container [2020-09-25 06:18:10,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:09" (2/3) ... [2020-09-25 06:18:10,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f804ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:10, skipping insertion in model container [2020-09-25 06:18:10,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:10" (3/3) ... [2020-09-25 06:18:10,888 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-09-25 06:18:10,901 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:18:10,913 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:18:10,937 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:18:10,968 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:18:10,968 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:18:10,969 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:18:10,969 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:18:10,969 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:18:10,969 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:18:10,969 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:18:10,969 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:18:11,000 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 06:18:11,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:18:11,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:11,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:11,022 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:11,035 INFO L82 PathProgramCache]: Analyzing trace with hash -231713174, now seen corresponding path program 1 times [2020-09-25 06:18:11,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:11,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360213533] [2020-09-25 06:18:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:11,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:11,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:12,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:13,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:13,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:16,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:16,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:18:16,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:18:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:18:16,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:16,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:18:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:18:16,798 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:16,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:17,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 06:18:17,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:17,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:18:17,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:17,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:18:17,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:17,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:18:17,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:17,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:18:17,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:18:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:17,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:17,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:18:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:17,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:17,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:17,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360213533] [2020-09-25 06:18:17,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:17,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:18:17,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37280603] [2020-09-25 06:18:17,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:18:17,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:17,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:18:17,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:18:17,242 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2020-09-25 06:18:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:18,901 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-09-25 06:18:18,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:18:18,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:18:18,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:18,925 INFO L225 Difference]: With dead ends: 489 [2020-09-25 06:18:18,925 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 06:18:18,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:18:18,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 06:18:19,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 06:18:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 06:18:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-09-25 06:18:19,045 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 142 [2020-09-25 06:18:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:19,046 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-09-25 06:18:19,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:18:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-09-25 06:18:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:18:19,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:19,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:19,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:18:19,053 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:19,053 INFO L82 PathProgramCache]: Analyzing trace with hash 259002356, now seen corresponding path program 1 times [2020-09-25 06:18:19,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:19,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883806321] [2020-09-25 06:18:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:19,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:19,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:19,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:20,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:20,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:18:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:18:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:18:24,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 06:18:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 06:18:24,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,514 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:24,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:24,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 06:18:24,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:18:24,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:24,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:24,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:24,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:24,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:24,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:24,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:24,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:24,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:24,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:24,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 06:18:24,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:24,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:24,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:24,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:18:24,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:24,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:24,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:18:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:24,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:24,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:24,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:24,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:18:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:24,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:24,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:24,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:24,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:24,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883806321] [2020-09-25 06:18:24,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:24,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:18:24,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948902985] [2020-09-25 06:18:24,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:18:24,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:24,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:18:24,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:18:24,980 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 4 states. [2020-09-25 06:18:25,460 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:26,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:26,387 INFO L93 Difference]: Finished difference Result 453 states and 521 transitions. [2020-09-25 06:18:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:18:26,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:18:26,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:26,397 INFO L225 Difference]: With dead ends: 453 [2020-09-25 06:18:26,398 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 06:18:26,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:18:26,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 06:18:26,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 06:18:26,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 06:18:26,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-09-25 06:18:26,472 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-09-25 06:18:26,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:26,473 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-09-25 06:18:26,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:18:26,473 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-09-25 06:18:26,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 06:18:26,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:26,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:26,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:18:26,479 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:26,479 INFO L82 PathProgramCache]: Analyzing trace with hash -196376212, now seen corresponding path program 1 times [2020-09-25 06:18:26,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:26,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278176132] [2020-09-25 06:18:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:26,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:27,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:29,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:29,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:29,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:31,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:31,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:18:31,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:18:31,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:18:31,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:31,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:31,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:31,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:18:31,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:18:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:31,853 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:31,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:31,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:31,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:31,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:31,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:31,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 06:18:31,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:31,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:31,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:31,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:31,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:31,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:31,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:31,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:31,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:31,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:31,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:31,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:31,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:31,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:31,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:31,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:31,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:31,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:31,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:31,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:32,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:32,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:32,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:32,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:32,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:32,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:32,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:32,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:32,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:32,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:32,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:32,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:32,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:32,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:32,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:32,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:32,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:32,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:18:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:18:32,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:18:32,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 06:18:32,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:18:32,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:18:32,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:32,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:32,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:18:32,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:32,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:18:32,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:18:32,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:18:32,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:18:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:32,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:32,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:32,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:18:32,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:32,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:32,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 06:18:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:32,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:32,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:32,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:32,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 06:18:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:32,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:32,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:32,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:32,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:32,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:32,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:32,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:32,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278176132] [2020-09-25 06:18:32,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:32,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:18:32,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669407780] [2020-09-25 06:18:32,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:18:32,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:32,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:18:32,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:18:32,238 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 7 states. [2020-09-25 06:18:32,759 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:34,079 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:35,379 INFO L93 Difference]: Finished difference Result 618 states and 742 transitions. [2020-09-25 06:18:35,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:18:35,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-09-25 06:18:35,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:35,384 INFO L225 Difference]: With dead ends: 618 [2020-09-25 06:18:35,384 INFO L226 Difference]: Without dead ends: 467 [2020-09-25 06:18:35,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:18:35,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-25 06:18:35,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 384. [2020-09-25 06:18:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 06:18:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 427 transitions. [2020-09-25 06:18:35,479 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 427 transitions. Word has length 165 [2020-09-25 06:18:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:35,480 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 427 transitions. [2020-09-25 06:18:35,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:18:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 427 transitions. [2020-09-25 06:18:35,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 06:18:35,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:35,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:35,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:18:35,484 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:35,485 INFO L82 PathProgramCache]: Analyzing trace with hash 875812700, now seen corresponding path program 1 times [2020-09-25 06:18:35,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:35,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814042466] [2020-09-25 06:18:35,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:35,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:37,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:38,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:40,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:40,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 06:18:40,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:18:40,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 06:18:40,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:40,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:18:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 06:18:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:18:40,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:40,919 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:40,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:40,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:41,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 06:18:41,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:41,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:41,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:41,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:41,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:41,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:41,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:41,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:41,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:41,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:41,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:41,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:41,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:41,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:18:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:18:41,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:18:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 06:18:41,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:18:41,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:18:41,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 06:18:41,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:41,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:18:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:18:41,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 06:18:41,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:41,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:18:41,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:18:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:18:41,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:18:41,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:41,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:18:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:41,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:41,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:41,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:41,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 06:18:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:41,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:41,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 06:18:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:41,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:41,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:41,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:18:41,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:18:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:41,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:41,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814042466] [2020-09-25 06:18:41,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:41,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:18:41,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90034092] [2020-09-25 06:18:41,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:18:41,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:41,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:18:41,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:18:41,463 INFO L87 Difference]: Start difference. First operand 384 states and 427 transitions. Second operand 9 states. [2020-09-25 06:18:42,234 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:43,725 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:44,014 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:44,344 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:44,660 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:44,992 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:45,340 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:45,628 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:45,938 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:47,214 INFO L93 Difference]: Finished difference Result 460 states and 535 transitions. [2020-09-25 06:18:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:18:47,217 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-25 06:18:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:47,222 INFO L225 Difference]: With dead ends: 460 [2020-09-25 06:18:47,222 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 06:18:47,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:18:47,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 06:18:47,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 384. [2020-09-25 06:18:47,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 06:18:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 426 transitions. [2020-09-25 06:18:47,295 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 426 transitions. Word has length 189 [2020-09-25 06:18:47,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:47,296 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 426 transitions. [2020-09-25 06:18:47,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:18:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 426 transitions. [2020-09-25 06:18:47,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 06:18:47,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:47,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:47,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:18:47,300 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:47,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1922205741, now seen corresponding path program 1 times [2020-09-25 06:18:47,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:47,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074293162] [2020-09-25 06:18:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:47,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:47,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 06:18:52,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:18:52,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:18:52,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:52,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 06:18:52,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:18:52,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:52,658 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:52,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:52,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:52,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 06:18:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:52,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:52,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:52,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:52,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:52,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:52,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:52,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:52,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:52,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:52,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:18:52,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:52,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:52,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:52,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:52,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:52,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:52,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:52,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:52,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:52,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:18:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:52,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:18:52,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 06:18:52,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:18:52,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:18:52,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:52,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:52,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:52,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:52,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 06:18:52,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 06:18:52,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:52,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:18:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:18:52,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:53,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:53,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:53,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:18:53,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 06:18:53,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:53,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:18:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:18:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:18:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:53,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:53,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:53,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:18:53,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:53,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:53,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:53,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:53,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:53,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:53,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:53,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:53,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:18:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:53,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:53,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:53,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:18:53,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:53,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:53,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:18:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:53,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 06:18:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:53,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:53,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:53,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:53,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:53,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:18:53,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:53,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:53,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 06:18:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:53,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:53,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:53,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:53,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:53,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:53,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:53,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:53,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:53,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074293162] [2020-09-25 06:18:53,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:53,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:18:53,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275959808] [2020-09-25 06:18:53,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:18:53,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:53,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:18:53,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:18:53,206 INFO L87 Difference]: Start difference. First operand 384 states and 426 transitions. Second operand 9 states.