/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_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:20:42,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:20:42,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:20:42,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:20:42,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:20:42,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:20:42,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:20:42,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:20:42,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:20:42,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:20:42,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:20:42,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:20:42,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:20:42,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:20:42,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:20:42,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:20:42,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:20:42,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:20:42,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:20:42,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:20:42,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:20:42,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:20:42,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:20:42,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:20:42,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:20:42,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:20:42,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:20:42,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:20:42,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:20:42,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:20:42,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:20:42,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:20:42,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:20:42,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:20:42,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:20:42,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:20:42,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:20:42,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:20:42,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:20:42,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:20:42,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:20:42,392 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 06:20:42,435 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:20:42,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:20:42,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:20:42,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:20:42,438 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:20:42,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:20:42,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:20:42,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:20:42,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:20:42,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:20:42,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:20:42,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:20:42,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:20:42,440 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:20:42,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:20:42,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:20:42,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:20:42,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:20:42,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:20:42,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:20:42,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:20:42,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:20:42,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:20:42,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:20:42,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:20:42,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:20:42,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:20:42,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:20:42,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:20:42,443 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 06:20:42,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:20:42,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:20:42,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:20:42,977 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:20:42,977 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:20:42,978 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 06:20:43,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c6540032/049527b1f2634384a6e1bbf39b446fbd/FLAGfdea10dd1 [2020-09-25 06:20:43,688 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:20:43,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 06:20:43,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c6540032/049527b1f2634384a6e1bbf39b446fbd/FLAGfdea10dd1 [2020-09-25 06:20:43,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c6540032/049527b1f2634384a6e1bbf39b446fbd [2020-09-25 06:20:43,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:20:43,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:20:43,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:43,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:20:43,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:20:43,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:43" (1/1) ... [2020-09-25 06:20:43,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:43, skipping insertion in model container [2020-09-25 06:20:43,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:43" (1/1) ... [2020-09-25 06:20:43,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:20:44,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:20:44,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:44,555 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:20:44,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:44,708 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:20:44,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44 WrapperNode [2020-09-25 06:20:44,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:44,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:20:44,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:20:44,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:20:44,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (1/1) ... [2020-09-25 06:20:44,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (1/1) ... [2020-09-25 06:20:44,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (1/1) ... [2020-09-25 06:20:44,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (1/1) ... [2020-09-25 06:20:44,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (1/1) ... [2020-09-25 06:20:44,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (1/1) ... [2020-09-25 06:20:44,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (1/1) ... [2020-09-25 06:20:44,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:20:44,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:20:44,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:20:44,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:20:44,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (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 06:20:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:20:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:20:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:20:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:20:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:20:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:20:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:20:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:20:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:20:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:20:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:20:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:20:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:20:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:20:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:20:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:20:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:20:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:20:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:20:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:20:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:20:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:20:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:20:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:20:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:20:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:20:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:20:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:20:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:20:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:20:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:20:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:20:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:20:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:20:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:20:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:20:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:20:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:20:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:20:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:20:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:20:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:20:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:20:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:20:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:20:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:20:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:20:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:20:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:20:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:20:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:20:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:20:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:20:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:20:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:20:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:20:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:20:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:20:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:20:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:20:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:20:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:20:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:20:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:20:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:20:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:20:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:20:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:20:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:20:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:20:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:20:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:20:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:20:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:20:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:20:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:20:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:20:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:20:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:20:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:20:46,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:20:46,126 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:20:46,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:46 BoogieIcfgContainer [2020-09-25 06:20:46,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:20:46,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:20:46,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:20:46,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:20:46,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:20:43" (1/3) ... [2020-09-25 06:20:46,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182ff8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:46, skipping insertion in model container [2020-09-25 06:20:46,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:44" (2/3) ... [2020-09-25 06:20:46,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182ff8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:46, skipping insertion in model container [2020-09-25 06:20:46,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:46" (3/3) ... [2020-09-25 06:20:46,144 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-25 06:20:46,155 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:20:46,166 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:20:46,186 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:20:46,217 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:20:46,217 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:20:46,218 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:20:46,218 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:20:46,218 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:20:46,218 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:20:46,218 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:20:46,218 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:20:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 06:20:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:20:46,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:46,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:46,266 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:46,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:46,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2110285638, now seen corresponding path program 1 times [2020-09-25 06:20:46,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:46,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390883986] [2020-09-25 06:20:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:46,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:48,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:51,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:20:51,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:51,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 06:20:51,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:51,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:51,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:51,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:20:51,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:51,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:20:52,188 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:52,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 06:20:52,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:52,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:52,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:52,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:52,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:52,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:52,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:52,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:52,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:52,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:20:52,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:52,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:52,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:52,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:52,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:52,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:52,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:52,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:52,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:20:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:52,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:52,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:52,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:20:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:52,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:52,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:52,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:52,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:52,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:52,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:52,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:52,531 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 06:20:52,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390883986] [2020-09-25 06:20:52,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:52,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:20:52,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059505574] [2020-09-25 06:20:52,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:20:52,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:52,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:20:52,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:52,575 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 4 states. [2020-09-25 06:20:53,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:53,892 INFO L93 Difference]: Finished difference Result 442 states and 524 transitions. [2020-09-25 06:20:53,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:20:53,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:20:53,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:53,915 INFO L225 Difference]: With dead ends: 442 [2020-09-25 06:20:53,916 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 06:20:53,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:53,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 06:20:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2020-09-25 06:20:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 06:20:54,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 06:20:54,028 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 148 [2020-09-25 06:20:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:54,029 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 06:20:54,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:20:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 06:20:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:20:54,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:54,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:54,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:20:54,035 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:54,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:54,036 INFO L82 PathProgramCache]: Analyzing trace with hash 16536712, now seen corresponding path program 1 times [2020-09-25 06:20:54,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:54,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956225229] [2020-09-25 06:20:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:54,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:54,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:56,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:20:59,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:59,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:20:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:20:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:20:59,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:59,568 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:59,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 06:20:59,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:59,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:59,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:59,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:59,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:59,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:59,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:59,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:59,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:59,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:59,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:59,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:20:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:59,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:20:59,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:20:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:59,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:59,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:59,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:59,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:59,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:59,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:59,860 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 06:20:59,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956225229] [2020-09-25 06:20:59,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:59,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:20:59,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863198172] [2020-09-25 06:20:59,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:20:59,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:59,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:20:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:20:59,867 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 5 states. [2020-09-25 06:21:00,602 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:01,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:01,451 INFO L93 Difference]: Finished difference Result 367 states and 415 transitions. [2020-09-25 06:21:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:21:01,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:21:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:01,456 INFO L225 Difference]: With dead ends: 367 [2020-09-25 06:21:01,456 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 06:21:01,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:21:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 06:21:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 230. [2020-09-25 06:21:01,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 06:21:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 06:21:01,502 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 149 [2020-09-25 06:21:01,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:01,503 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 06:21:01,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:21:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 06:21:01,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:21:01,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:01,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:01,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:21:01,507 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:01,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:01,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1541802730, now seen corresponding path program 1 times [2020-09-25 06:21:01,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:01,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257590868] [2020-09-25 06:21:01,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:01,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:01,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:06,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:06,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:21:06,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:21:06,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:06,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:06,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:21:06,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:21:06,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:06,878 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:06,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:06,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:06,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:06,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:06,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:06,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 06:21:06,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:06,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:06,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:06,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:07,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:07,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:07,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:07,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:07,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:07,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:07,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:07,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:07,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:07,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:07,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 34 [2020-09-25 06:21:07,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:07,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:21:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:07,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:07,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:07,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:21:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:07,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:07,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:07,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:07,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:07,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:07,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:07,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:07,174 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 06:21:07,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257590868] [2020-09-25 06:21:07,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:07,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:07,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469088323] [2020-09-25 06:21:07,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:07,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:07,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:07,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:07,176 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 6 states. [2020-09-25 06:21:07,724 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:08,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:08,609 INFO L93 Difference]: Finished difference Result 414 states and 480 transitions. [2020-09-25 06:21:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:21:08,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:21:08,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:08,613 INFO L225 Difference]: With dead ends: 414 [2020-09-25 06:21:08,614 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 06:21:08,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 06:21:08,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 230. [2020-09-25 06:21:08,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 06:21:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2020-09-25 06:21:08,655 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 162 [2020-09-25 06:21:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:08,656 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2020-09-25 06:21:08,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2020-09-25 06:21:08,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 06:21:08,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:08,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:08,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:21:08,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:08,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:08,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1425032231, now seen corresponding path program 1 times [2020-09-25 06:21:08,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:08,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108840990] [2020-09-25 06:21:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:08,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:08,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:09,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:11,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:11,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 06:21:13,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:21:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:21:13,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:21:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 06:21:13,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:13,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,014 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:14,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:14,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 06:21:14,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:14,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:14,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:14,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:14,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:14,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:14,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:14,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:14,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:21:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:21:14,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:21:14,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:21:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:21:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:21:14,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:14,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:14,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:21:14,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:21:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:14,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 06:21:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:14,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,303 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 06:21:14,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108840990] [2020-09-25 06:21:14,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:14,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:21:14,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831674814] [2020-09-25 06:21:14,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:21:14,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:14,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:21:14,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:21:14,306 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 8 states. [2020-09-25 06:21:14,879 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:16,618 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:17,500 INFO L93 Difference]: Finished difference Result 593 states and 710 transitions. [2020-09-25 06:21:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:21:17,500 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-09-25 06:21:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:17,506 INFO L225 Difference]: With dead ends: 593 [2020-09-25 06:21:17,506 INFO L226 Difference]: Without dead ends: 478 [2020-09-25 06:21:17,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-09-25 06:21:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-25 06:21:17,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 337. [2020-09-25 06:21:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 06:21:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 364 transitions. [2020-09-25 06:21:17,567 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 364 transitions. Word has length 170 [2020-09-25 06:21:17,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:17,568 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 364 transitions. [2020-09-25 06:21:17,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:21:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 364 transitions. [2020-09-25 06:21:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 06:21:17,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:17,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:17,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:21:17,571 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:17,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:17,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1572233247, now seen corresponding path program 1 times [2020-09-25 06:21:17,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:17,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380195066] [2020-09-25 06:21:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:17,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:18,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:18,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:21,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:22,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:22,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 06:21:22,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 06:21:22,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:22,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:21:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 06:21:22,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,022 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:23,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:23,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 06:21:23,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:21:23,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:23,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:21:23,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:23,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:21:23,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:23,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:21:23,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:23,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:21:23,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:21:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:21:23,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 06:21:23,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 06:21:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:21:23,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:21:23,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:21:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:21:23,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:21:23,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:21:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 06:21:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:21:23,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:21:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:21:23,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:23,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,568 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 06:21:23,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380195066] [2020-09-25 06:21:23,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:23,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:21:23,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165828911] [2020-09-25 06:21:23,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:21:23,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:23,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:21:23,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:21:23,573 INFO L87 Difference]: Start difference. First operand 337 states and 364 transitions. Second operand 7 states. [2020-09-25 06:21:24,381 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:26,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:26,832 INFO L93 Difference]: Finished difference Result 918 states and 1179 transitions. [2020-09-25 06:21:26,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:21:26,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-09-25 06:21:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:26,845 INFO L225 Difference]: With dead ends: 918 [2020-09-25 06:21:26,845 INFO L226 Difference]: Without dead ends: 915 [2020-09-25 06:21:26,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:21:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-09-25 06:21:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 565. [2020-09-25 06:21:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-09-25 06:21:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 627 transitions. [2020-09-25 06:21:26,971 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 627 transitions. Word has length 194 [2020-09-25 06:21:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:26,972 INFO L479 AbstractCegarLoop]: Abstraction has 565 states and 627 transitions. [2020-09-25 06:21:26,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:21:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 627 transitions. [2020-09-25 06:21:26,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 06:21:26,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:26,977 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:26,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:21:26,977 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:26,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:26,978 INFO L82 PathProgramCache]: Analyzing trace with hash -690696280, now seen corresponding path program 1 times [2020-09-25 06:21:26,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:26,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486744622] [2020-09-25 06:21:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:27,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking...