/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:36:54,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:36:54,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:36:54,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:36:54,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:36:54,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:36:54,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:36:54,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:36:54,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:36:54,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:36:54,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:36:54,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:36:54,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:36:54,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:36:54,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:36:54,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:36:54,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:36:54,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:36:54,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:36:54,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:36:54,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:36:54,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:36:54,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:36:54,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:36:54,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:36:54,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:36:54,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:36:54,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:36:54,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:36:54,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:36:54,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:36:54,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:36:54,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:36:54,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:36:54,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:36:54,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:36:54,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:36:54,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:36:54,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:36:54,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:36:54,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:36:54,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:36:54,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:36:54,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:36:54,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:36:54,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:36:54,416 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:36:54,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:36:54,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:36:54,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:36:54,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:36:54,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:36:54,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:36:54,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:36:54,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:36:54,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:36:54,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:36:54,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:36:54,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:36:54,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:36:54,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:36:54,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:36:54,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:36:54,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:54,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:36:54,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:36:54,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:36:54,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:36:54,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:36:54,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:36:54,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:36:54,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:36:54,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:36:54,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:36:54,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:36:54,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:36:54,956 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:36:54,957 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-25 07:36:55,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c9cd6f04/f34eda08e7e04c9ebe3f12e993614db1/FLAGe646cd0c0 [2020-09-25 07:36:55,691 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:36:55,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-25 07:36:55,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c9cd6f04/f34eda08e7e04c9ebe3f12e993614db1/FLAGe646cd0c0 [2020-09-25 07:36:55,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c9cd6f04/f34eda08e7e04c9ebe3f12e993614db1 [2020-09-25 07:36:55,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:36:55,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:36:55,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:55,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:36:55,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:36:55,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:55" (1/1) ... [2020-09-25 07:36:55,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:55, skipping insertion in model container [2020-09-25 07:36:55,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:55" (1/1) ... [2020-09-25 07:36:55,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:36:56,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:36:56,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:56,554 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:36:56,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:56,710 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:36:56,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56 WrapperNode [2020-09-25 07:36:56,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:56,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:36:56,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:36:56,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:36:56,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... [2020-09-25 07:36:56,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... [2020-09-25 07:36:56,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... [2020-09-25 07:36:56,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... [2020-09-25 07:36:56,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... [2020-09-25 07:36:56,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... [2020-09-25 07:36:56,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... [2020-09-25 07:36:56,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:36:56,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:36:56,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:36:56,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:36:56,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:36:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:36:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:36:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:36:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:36:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:36:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:36:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:36:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:36:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:36:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:36:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:36:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:36:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:36:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:36:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:36:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:36:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:36:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:36:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:36:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:36:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:36:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:36:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:36:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:36:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:36:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:36:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:36:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:36:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:36:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:36:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:36:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:36:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:36:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:36:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:36:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:36:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:36:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:36:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:36:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:36:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:36:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:36:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:36:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:36:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:36:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:36:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:36:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:36:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:36:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:36:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:36:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:36:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:36:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:36:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:36:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:36:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:36:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:36:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:36:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:36:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:36:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:36:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:36:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:36:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:36:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:36:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:36:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:36:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:36:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:36:58,269 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:36:58,270 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:36:58,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:58 BoogieIcfgContainer [2020-09-25 07:36:58,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:36:58,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:36:58,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:36:58,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:36:58,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:36:55" (1/3) ... [2020-09-25 07:36:58,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6653048c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:58, skipping insertion in model container [2020-09-25 07:36:58,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:56" (2/3) ... [2020-09-25 07:36:58,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6653048c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:58, skipping insertion in model container [2020-09-25 07:36:58,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:58" (3/3) ... [2020-09-25 07:36:58,294 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-09-25 07:36:58,307 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:36:58,323 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:36:58,348 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:36:58,391 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:36:58,391 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:36:58,391 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:36:58,391 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:36:58,392 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:36:58,392 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:36:58,392 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:36:58,392 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:36:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 07:36:58,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:36:58,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:58,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:58,441 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:58,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:58,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1194640378, now seen corresponding path program 1 times [2020-09-25 07:36:58,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:58,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052859309] [2020-09-25 07:36:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:58,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:59,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:00,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:01,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:37:03,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:37:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 07:37:03,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:37:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 07:37:04,310 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:04,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:04,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 07:37:04,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:04,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:04,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:04,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:04,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:04,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:04,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:04,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:04,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:37:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:04,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:04,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:37:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:04,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:04,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:04,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:04,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052859309] [2020-09-25 07:37:04,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:04,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:37:04,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510644095] [2020-09-25 07:37:04,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:37:04,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:04,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:37:04,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:37:04,710 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-25 07:37:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:06,242 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-09-25 07:37:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:37:06,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:37:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:06,267 INFO L225 Difference]: With dead ends: 489 [2020-09-25 07:37:06,267 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 07:37:06,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:37:06,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 07:37:06,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 07:37:06,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 07:37:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-09-25 07:37:06,415 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 142 [2020-09-25 07:37:06,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:06,416 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-09-25 07:37:06,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:37:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-09-25 07:37:06,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:37:06,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:06,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:06,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:37:06,431 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:06,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:06,431 INFO L82 PathProgramCache]: Analyzing trace with hash -484006528, now seen corresponding path program 1 times [2020-09-25 07:37:06,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:06,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907216236] [2020-09-25 07:37:06,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:06,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:06,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:07,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:37:11,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:37:11,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:11,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 07:37:11,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 07:37:11,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,868 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:11,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:12,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 07:37:12,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:37:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:12,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:12,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:12,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:12,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:37:12,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:12,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:12,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:12,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:37:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:12,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:12,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:12,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:12,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:12,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:12,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907216236] [2020-09-25 07:37:12,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:12,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:37:12,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347554887] [2020-09-25 07:37:12,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:37:12,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:12,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:37:12,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:37:12,308 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 4 states. [2020-09-25 07:37:12,799 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:13,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:13,811 INFO L93 Difference]: Finished difference Result 453 states and 521 transitions. [2020-09-25 07:37:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:37:13,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:37:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:13,817 INFO L225 Difference]: With dead ends: 453 [2020-09-25 07:37:13,817 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 07:37:13,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 07:37:13,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 07:37:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 07:37:13,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-09-25 07:37:13,870 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-09-25 07:37:13,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:13,871 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-09-25 07:37:13,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:37:13,871 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-09-25 07:37:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 07:37:13,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:13,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:13,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:37:13,875 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:13,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:13,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1452522798, now seen corresponding path program 1 times [2020-09-25 07:37:13,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:13,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82197233] [2020-09-25 07:37:13,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:14,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:14,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:15,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:16,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:17,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:18,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:18,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:37:18,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:37:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 07:37:18,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:18,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:37:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:37:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:37:18,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,217 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:19,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 07:37:19,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:19,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:19,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:19,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:19,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:19,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:19,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:37:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:37:19,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:37:19,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:37:19,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:37:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:37:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:37:19,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:37:19,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:37:19,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:37:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:37:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:37:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:19,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:19,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 07:37:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:19,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:19,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 07:37:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:19,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:19,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:19,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82197233] [2020-09-25 07:37:19,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:19,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:37:19,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835243731] [2020-09-25 07:37:19,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:37:19,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:19,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:37:19,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:19,517 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 7 states. [2020-09-25 07:37:20,013 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:21,480 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:22,884 INFO L93 Difference]: Finished difference Result 618 states and 742 transitions. [2020-09-25 07:37:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:37:22,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-09-25 07:37:22,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:22,890 INFO L225 Difference]: With dead ends: 618 [2020-09-25 07:37:22,890 INFO L226 Difference]: Without dead ends: 467 [2020-09-25 07:37:22,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:37:22,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-25 07:37:22,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 384. [2020-09-25 07:37:22,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 07:37:22,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 427 transitions. [2020-09-25 07:37:22,974 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 427 transitions. Word has length 165 [2020-09-25 07:37:22,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:22,975 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 427 transitions. [2020-09-25 07:37:22,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:37:22,975 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 427 transitions. [2020-09-25 07:37:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 07:37:22,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:22,978 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] [2020-09-25 07:37:22,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:37:22,978 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:22,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:22,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1700590291, now seen corresponding path program 1 times [2020-09-25 07:37:22,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:22,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153155390] [2020-09-25 07:37:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:23,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:23,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 07:37:28,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:37:28,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:37:28,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:37:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,306 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:28,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:28,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 07:37:28,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:28,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:28,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:28,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:28,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:28,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:28,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:28,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:28,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 07:37:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:37:28,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:37:28,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 07:37:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:28,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:37:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:37:28,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:37:28,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:37:28,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:37:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:37:28,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:28,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:37:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:28,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:28,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 07:37:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:28,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:28,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 07:37:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:28,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:28,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153155390] [2020-09-25 07:37:28,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:28,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:37:28,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542864292] [2020-09-25 07:37:28,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:37:28,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:28,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:37:28,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:28,634 INFO L87 Difference]: Start difference. First operand 384 states and 427 transitions. Second operand 5 states. [2020-09-25 07:37:29,425 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:30,911 INFO L93 Difference]: Finished difference Result 624 states and 699 transitions. [2020-09-25 07:37:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:37:30,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2020-09-25 07:37:30,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:30,918 INFO L225 Difference]: With dead ends: 624 [2020-09-25 07:37:30,918 INFO L226 Difference]: Without dead ends: 410 [2020-09-25 07:37:30,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-09-25 07:37:30,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 357. [2020-09-25 07:37:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-09-25 07:37:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 384 transitions. [2020-09-25 07:37:30,978 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 384 transitions. Word has length 180 [2020-09-25 07:37:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:30,978 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 384 transitions. [2020-09-25 07:37:30,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:37:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 384 transitions. [2020-09-25 07:37:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 07:37:30,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:30,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:30,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:37:30,982 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:30,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:30,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1067841542, now seen corresponding path program 1 times [2020-09-25 07:37:30,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:30,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633988381] [2020-09-25 07:37:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:31,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:31,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:32,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:32,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:32,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 07:37:36,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:37:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 07:37:36,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:37:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:37:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:37:36,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,433 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:36,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:36,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 07:37:36,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:36,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:36,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:36,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:36,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:37:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:37:36,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:37:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 07:37:36,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:37:36,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:37:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:37:36,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:37:36,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:37:36,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:37:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:37:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:37:36,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:36,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:36,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:36,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:37:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:36,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:36,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 07:37:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:36,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:36,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:36,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 07:37:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:36,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:36,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:36,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:36,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:36,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633988381] [2020-09-25 07:37:36,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:36,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:37:36,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757754718] [2020-09-25 07:37:36,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:37:36,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:36,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:37:36,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:37:36,941 INFO L87 Difference]: Start difference. First operand 357 states and 384 transitions. Second operand 9 states. [2020-09-25 07:37:37,457 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:38,951 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:37:39,227 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:39,586 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:37:39,877 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:37:40,199 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:40,557 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:37:40,862 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:37:41,167 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:41,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:41,985 INFO L93 Difference]: Finished difference Result 419 states and 468 transitions. [2020-09-25 07:37:41,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:37:41,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-25 07:37:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:41,994 INFO L225 Difference]: With dead ends: 419 [2020-09-25 07:37:41,994 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 07:37:41,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:37:41,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 07:37:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 357. [2020-09-25 07:37:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-09-25 07:37:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 383 transitions. [2020-09-25 07:37:42,041 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 383 transitions. Word has length 189 [2020-09-25 07:37:42,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:42,041 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 383 transitions. [2020-09-25 07:37:42,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:37:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 383 transitions. [2020-09-25 07:37:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 07:37:42,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:42,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:42,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:37:42,045 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:42,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:42,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1791967861, now seen corresponding path program 1 times [2020-09-25 07:37:42,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:42,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369566482] [2020-09-25 07:37:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:42,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:42,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking...